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Posted: 7/4/2014 8:28:03 PM EDT
[#1]
They still make stuff in the UK...but the price of entry is quite steep..
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Posted: 7/5/2014 12:22:33 AM EDT
[#2]
What speaker cabinet did you play through?
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Posted: 7/5/2014 12:46:45 AM EDT
[#3]
Make sure they have UK greenbacks in the cab.
Otherwise, I'd say Vox is my new favorite. |
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Posted: 7/5/2014 1:08:28 AM EDT
[#4]
You could always just hit craigslist or Ebay and pick up a JCM something or other and have the real deal sound for far less.
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Posted: 7/5/2014 2:20:25 AM EDT
[#5]
1960a 4x12" cabinet
Heads were DSL series Ps...they suck Lol |
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Posted: 7/7/2014 5:44:13 AM EDT
[#6]
Marshalls have been a little fizzy for years, which is why some people remove the bright cap (C83 in my JVM), but some of that fizz you heard is due to the Celestion G12T-75s that the speaker cab you tried has in it.
I've been happy with my JVM, although I have modded it (took a great amp and made it better), and I used to have a TSL that was great too, but became redundant when I got my JVM. They also make the JVM in a 50 watt version. And they also have reissues of the JCM800 and the model 1974 Plexi. But if you want a hot rodded Marshall without having to mod a Marshall, other companies have that covered. Amps that come to mind are the Splawn Quick Rod, Friedman Brown Eye, and Bogner Helios. |
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Posted: 7/7/2014 2:03:11 PM EDT
[#7]
The MG stuff is all fizz/fuzz.
Personally....the only Marshall I ever really liked was the Valvestate... I don't want a $1000 amp I have to modify. I like amps that sound great right out of the box....and with no stomp-box processed distortion. Believe it of don't....my current favorite is a Bugera 333XL Infinium (copied from the Peavy JSX model). Just add a noise gate, delay pedal, EQ, and guitar. |
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Posted: 7/7/2014 8:20:43 PM EDT
[#8]
Quote HistoryQuoted:Amps that come to mind are the Splawn Quick Rod, Friedman Brown Eye, and Bogner Helios. *cough* SLO *cough* |
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Posted: 7/8/2014 10:19:27 AM EDT
[#9]
Quote HistoryQuoted:
1960a 4x12" cabinet Heads were DSL series Ps...they suck Lol I currently own an 8 tube/100 watt DSL 2000 that I bought new in the mid 1990s with a 1960a cab and it's the best sounding amp I've ever played. |
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Posted: 7/8/2014 12:32:39 PM EDT
[#10]
Splawn Quickrod is a great Marshall.
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Posted: 7/8/2014 2:58:00 PM EDT
[#11]
Quote HistoryQuoted:
I currently own an 8 tube/100 watt DSL 2000 that I bought new in the mid 1990s with a 1960a cab and it's the best sounding amp I've ever played. Quote HistoryQuoted:
Quoted:
1960a 4x12" cabinet Heads were DSL series Ps...they suck Lol I currently own an 8 tube/100 watt DSL 2000 that I bought new in the mid 1990s with a 1960a cab and it's the best sounding amp I've ever played. I think he's talking about the new DSLs, which are either made in China or Vietnam, can't remember which. |
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Posted: 7/8/2014 2:59:07 PM EDT
[#12]
Quote HistoryQuoted:
Splawn Quickrod is a great Marshall. Yes it is! 
When is your Supersport supposed to show up? |
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Posted: 7/8/2014 4:33:06 PM EDT
[#13]
Yeah it was a brand new MADE IN CHINA Marshall DSL 100.
could not find any DSL 50's. I just got back my second plexi from my amp tech recently.....had both of my plexis recapped due to filter caps getting old. Rebiased and set up with new JJ EL-34's. The older plexi had a bit of a hum that we had to fix. Now both are freaking hot. Had them up and running on Sunday through some old grey checkfront Marshall 4x12" 1960B cabinets with 25 watt Blackback Celestions. As much as I love my Plexi's....I kinda dig having things like an effects loop, etc Recently picked up a Hughes & Kettner Tubemeister 18...very close to getting the Grandmeister in a few weeks. Been looking for older JCM800 2205 series Marshalls but they are vaporware. I may be switching to H&K for my stage rig....unless I find a kick ass Marshall I can gig with |
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Posted: 7/8/2014 5:40:37 PM EDT
[#14]
Have a look at Splawn. I have a Pro Mod and love it. It's a hot rodded Plexi, Hot Rodded JCM800 and really Hot Rodded JCM800 in one box, with a KT88 power section. Awhile back they discontinued my amp and made the power section an option with the Quick Rod (just as well, they share the same preamp). So one should scratch your JCM800 itch.
Here's a crappy cell phone vid of me screwing around with mine  :
http://youtu.be/IBCZNc63fsI |
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Posted: 7/9/2014 5:59:23 AM EDT
[#15]
Quote HistoryQuoted:
Yeah it was a brand new MADE IN CHINA Marshall DSL 100. could not find any DSL 50's. I just got back my second plexi from my amp tech recently.....had both of my plexis recapped due to filter caps getting old. Rebiased and set up with new JJ EL-34's. The older plexi had a bit of a hum that we had to fix. Now both are freaking hot. Had them up and running on Sunday through some old grey checkfront Marshall 4x12" 1960B cabinets with 25 watt Blackback Celestions. As much as I love my Plexi's....I kinda dig having things like an effects loop, etc Recently picked up a Hughes & Kettner Tubemeister 18...very close to getting the Grandmeister in a few weeks. Been looking for older JCM800 2205 series Marshalls but they are vaporware. I may be switching to H&K for my stage rig....unless I find a kick ass Marshall I can gig with You don't be disappointed with the Grandmeister. It's as versatile and awesome a package as you'll find. I've owned or played nearly everything and as far as I'm concerned... the Grandmeister is as good as it gets. Only sold mine because I was going back to all old-school single-channel plexi stuff (a pair of Ceriatones) with pedals. But it's very likely that I'll own another GM down the road. Talk about a Swiss Army Knife! And yes, I did gig the GM before I sold it and it was great. Cut through the mix and roared as well as any Marshall I've ever gigged. |
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Posted: 7/9/2014 5:01:33 PM EDT
[#16]
The can of bees sound started with the 900 series
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Posted: 7/9/2014 5:48:01 PM EDT
[#17]
Quote HistoryQuoted:
Yes it is!
When is your Supersport supposed to show up? Quote HistoryQuoted:
Quoted:
Splawn Quickrod is a great Marshall. Yes it is!
When is your Supersport supposed to show up? Had to abandon the purchase 
Paid off some debt like a responsible adult. Growing up sucks. |
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Posted: 7/10/2014 8:53:29 AM EDT
[#18]
Quote HistoryQuoted:
Had to abandon the purchase
Paid off some debt like a responsible adult. Growing up sucks. I struggle with such things as well. Sometimes I choose wisely... most times I do not! 
But I only have a small amount of debt on ONE credit card. That's my Sweetwater card and it's 3 years, no interest. So the reason I haven't paid it off is that every time I think about it... I remember that it's THEIR money that I'm using interest-free and just keep paying my monthly payment (that will have it paid off in about 2 years). My truck is paid-off, and the wife and I are two years from paying our house off. So I'm practically debt-free already. My wife doesn't even get bothered by my music purchases any more because our debt load is so small. |
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Posted: 7/10/2014 5:03:31 PM EDT
[#19]
So if I decided to crank up my JCM800 that I've had since the 80s (haven't used it in about 20 years), will I have problems?
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Posted: 7/10/2014 5:33:31 PM EDT
[#20]
Quote HistoryQuoted:
So if I decided to crank up my JCM800 that I've had since the 80s (haven't used it in about 20 years), will I have problems? Might want to pull the chassis out of the head cabinet and look for caps that are leaky or bulged. Other than that, just let it sit on standby for awhile so everything has a chance to warm up at idle. Then go ahead and give it a whirl. Might want to recap it before long, though. And shame on you for letting such a great amp sit unused for that long. 
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Posted: 7/11/2014 1:07:43 PM EDT
[#21]
Quote HistoryQuoted:
And shame on you for letting such a great amp sit unused for that long. I'm ashamed to say that I really have barely picked up my guitars for many years. I can't tell you how happy I am to have the music bug again. I'm writing and playing again, and beginning to get some of my chops back. My wife bought me a Parker Fly Mojo about a year back, and having a nice playing guitar really helped. |
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Posted: 7/11/2014 1:43:46 PM EDT
[#22]
Quote HistoryQuoted:
So if I decided to crank up my JCM800 that I've had since the 80s (haven't used it in about 20 years), will I have problems? Gone Shootin nailed it. filter caps go bad in amps that are not used. the big 50uf filter caps are notorius for bulging and in some cases popping. bests way to keep an amp going it to regularly use it. |
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Posted: 7/11/2014 1:53:47 PM EDT
[#23]
Quote HistoryQuoted:
Gone Shootin nailed it. filter caps go bad in amps that are not used. the big 50uf filter caps are notorius for bulging and in some cases popping. bests way to keep an amp going it to regularly use it. Quote HistoryQuoted:
Quoted:
So if I decided to crank up my JCM800 that I've had since the 80s (haven't used it in about 20 years), will I have problems? Gone Shootin nailed it. filter caps go bad in amps that are not used. the big 50uf filter caps are notorius for bulging and in some cases popping. bests way to keep an amp going it to regularly use it. I'll pop it out and have a look. Next is the Juno-106 in the attic.... |
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Posted: 7/12/2014 8:47:45 PM EDT
[#24]
Quote HistoryQuoted:
Might want to pull the chassis out of the head cabinet and look for caps that are leaky or bulged. Other than that, just let it sit on standby for awhile so everything has a chance to warm up at idle. Then go ahead and give it a whirl. Might want to recap it before long, though. And shame on you for letting such a great amp sit unused for that long. Quote HistoryQuoted:
Quoted:
So if I decided to crank up my JCM800 that I've had since the 80s (haven't used it in about 20 years), will I have problems? Might want to pull the chassis out of the head cabinet and look for caps that are leaky or bulged. Other than that, just let it sit on standby for awhile so everything has a chance to warm up at idle. Then go ahead and give it a whirl. Might want to recap it before long, though. And shame on you for letting such a great amp sit unused for that long. Standby switches accomplish nothing in an audio frequency amp. |
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Posted: 7/13/2014 3:53:46 PM EDT
[#25]
Quote HistoryQuoted:
Standby switches accomplish nothing in an audio frequency amp. Quote HistoryQuoted:
Quoted:
Quoted:
So if I decided to crank up my JCM800 that I've had since the 80s (haven't used it in about 20 years), will I have problems? Might want to pull the chassis out of the head cabinet and look for caps that are leaky or bulged. Other than that, just let it sit on standby for awhile so everything has a chance to warm up at idle. Then go ahead and give it a whirl. Might want to recap it before long, though. And shame on you for letting such a great amp sit unused for that long. Standby switches accomplish nothing in an audio frequency amp. Wait... wut? Most tube amp builders recommend letting things warm up for at least a minute or thereabouts on standby, so the power tubes don't get slammed with current while they're still cold. |
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Posted: 7/13/2014 3:55:45 PM EDT
[#26]
Standby switches are vital with the voltages on Marshalls. Extends tube life
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Posted: 7/13/2014 4:18:57 PM EDT
[#27]
Quote HistoryQuoted:
Wait... wut? Most tube amp builders recommend letting things warm up for at least a minute or thereabouts on standby, so the power tubes don't get slammed with current while they're still cold. Quote HistoryQuoted:
Quoted:
Quoted:
Quoted:
So if I decided to crank up my JCM800 that I've had since the 80s (haven't used it in about 20 years), will I have problems? Might want to pull the chassis out of the head cabinet and look for caps that are leaky or bulged. Other than that, just let it sit on standby for awhile so everything has a chance to warm up at idle. Then go ahead and give it a whirl. Might want to recap it before long, though. And shame on you for letting such a great amp sit unused for that long. Standby switches accomplish nothing in an audio frequency amp. Wait... wut? Most tube amp builders recommend letting things warm up for at least a minute or thereabouts on standby, so the power tubes don't get slammed with current while they're still cold. Exactly. |
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Posted: 7/14/2014 5:18:47 PM EDT
[#28]
Quote HistoryQuoted:
Exactly. Quote HistoryQuoted:
Quoted:
Quoted:
Quoted:
Quoted:
So if I decided to crank up my JCM800 that I've had since the 80s (haven't used it in about 20 years), will I have problems? Might want to pull the chassis out of the head cabinet and look for caps that are leaky or bulged. Other than that, just let it sit on standby for awhile so everything has a chance to warm up at idle. Then go ahead and give it a whirl. Might want to recap it before long, though. And shame on you for letting such a great amp sit unused for that long. Standby switches accomplish nothing in an audio frequency amp. Wait... wut? Most tube amp builders recommend letting things warm up for at least a minute or thereabouts on standby, so the power tubes don't get slammed with current while they're still cold. Exactly. Wrong. Amps have standby switches because Leo Fender put standby switches on his amps. Leo Fender put standby switches on his amps for two reasons: 1. The generic circuits he was copying from the major tube companies literature had standby switches, because sometimes those circuits were the basis for RF circuits -in which case a standby switch actually does something. 2. It let him run cheap, under-sized capacitors in his early amps. Everyone else was copying him. Unless your marshall's output stage is powering a radio transmitter, it does nothing. Don't take my word for it .... read about it here Guitar amps don't run at voltages high enough, or have output tubes expensive enough, to make a standby switch anything more than a "mute" switch. Otherwise, why are there tube amps that do not have a standby switch? |
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Posted: 7/14/2014 5:44:42 PM EDT
[#29]
Ummmmm.....
I was an electronics tech in a previous life I also have played tube amps for the past 35 plus years Tubes last longer in my experience with amps w standby switches |
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Posted: 7/14/2014 6:08:12 PM EDT
[#30]
Quote HistoryQuoted:
Ummmmm..... I was an electronics tech in a previous life I also have played tube amps for the past 35 plus years Tubes last longer in my experience with amps w standby switches Former electronics tech. Explain the process by which a standby switch, especially as wired in fender amps and copies,, can extend tube life in amps operating below 600 volts and at or less than 100 watts. I have no doubt you thought it did - the placebo effect is very powerful. |
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Posted: 7/14/2014 6:29:20 PM EDT
[#31]
Never played fenders. Only marshalls. Enlighten me on how slamming a tube with plate voltages without warming the tube up does not hurt it
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Posted: 7/15/2014 8:18:24 AM EDT
[#32]
Quote HistoryQuoted:
Never played fenders. Only marshalls. Enlighten me on how slamming a tube with plate voltages without warming the tube up does not hurt it Evidently, the fact that 99+% of all tube amps rated at over 5 watts have Standby switches is a result of all of these countless amp builders with their myriad complex circuit designs buying into the standby switch "hype" and doing it simply because "it's always been done". They are evidently capable of designing complex circuits to produce varying tonal options, but incapable of understanding the need (or lack thereof) for a Standby switch, or... they are afraid to present their amps to the public without the snake oil that is a standby switch. 
Btw... I did read that article and the guy seems to know what he's talking about. But I've been using standby switches for going-on 30 years and don't intend to stop doing so now. |
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Posted: 7/15/2014 9:24:44 AM EDT
[#33]
Same here, I'll keep using my standby switches, especially on my JVM so I can use the silent recording feature.
And even after reading the article, I still don't see any harm in them. To me it's the difference between dumping your clutch or easing up on the pedal smoothly so you don't rack the hell out of your drivetrain. Also, the article's argument that standbys aren't safe because people forget and leave the amp on and cause fire is a moot point in my case. All of my amps are plugged into a power strip, and when I'm done, the strip either gets turned off or unplugged. Been doing it this way for years. |
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Posted: 7/15/2014 7:15:15 PM EDT
[#34]
Quote HistoryQuoted:
Never played fenders. Only marshalls. Enlighten me on how slamming a tube with plate voltages without warming the tube up does not hurt it How do amps without standby switches, disconnected standby switches, or unused standby switches manage not to be hurt? What is the mechanism by which "slamming a tube" with the plate voltages it is designed to use can "hurt" it? BTW, marshalls were based on fender circuits. If you are running a 1000+ watt transmitter tube, then a standby switch has some utility. In a guitar amp it is a fancy mute button and does nothing for the life of the tube. If anyone has EVIDENCE to the contrary, by all means post it. |
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Posted: 7/15/2014 7:18:52 PM EDT
[#35]
2 things can actually improve tube life:
Proper bias - line voltage can vary greatly If you take the amp on the road, bias on the cold side or be prepared to buy tubes, Let the amp cool down thoroughly before moving it. |
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Posted: 7/15/2014 8:21:47 PM EDT
[#36]
How well do tubes do when then come in from cold weather? Like sitting in a van or trailer during the winter?
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Posted: 7/16/2014 12:51:27 AM EDT
[#37]
Quote HistoryQuoted:
How do amps without standby switches, disconnected standby switches, or unused standby switches manage not to be hurt? What is the mechanism by which "slamming a tube" with the plate voltages it is designed to use can "hurt" it? BTW, marshalls were based on fender circuits. If you are running a 1000+ watt transmitter tube, then a standby switch has some utility. In a guitar amp it is a fancy mute ampbutton and does nothing for the life of the tube. If anyone has EVIDENCE to the contrary, by all means post it. Quote HistoryQuoted:
Quoted:
Never played fenders. Only marshalls. Enlighten me on how slamming a tube with plate voltages without warming the tube up does not hurt it How do amps without standby switches, disconnected standby switches, or unused standby switches manage not to be hurt? What is the mechanism by which "slamming a tube" with the plate voltages it is designed to use can "hurt" it? BTW, marshalls were based on fender circuits. If you are running a 1000+ watt transmitter tube, then a standby switch has some utility. In a guitar amp it is a fancy mute ampbutton and does nothing for the life of the tube. If anyone has EVIDENCE to the contrary, by all means post it. It is all about the tube life. I have played tube amps since the Early 70's. I have retubed my share of amps. It is exactly like unplugging an instrument cable on an amp that is full up...the surge hits the speaker....which shortens the life of the speakers. So you recommend that too? Over time and after retubing amost for almost 40 years you just know based upon real life...not electronic theory. Ps.....i do understand electrical theories having been an electronics tech |
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Posted: 7/16/2014 1:17:48 AM EDT
[#38]
Quote HistoryQuoted:
I'll pop it out and have a look. Next is the Juno-106 in the attic.... Quote HistoryQuoted:
Quoted:
Quoted:
So if I decided to crank up my JCM800 that I've had since the 80s (haven't used it in about 20 years), will I have problems? Gone Shootin nailed it. filter caps go bad in amps that are not used. the big 50uf filter caps are notorius for bulging and in some cases popping. bests way to keep an amp going it to regularly use it. I'll pop it out and have a look. Next is the Juno-106 in the attic.... I miss my Juno, man, there are a lot of much more capable keyboards out there, but for a pure synth all it needed was weight / pressure sensitive keys. I wouldn't want weighted keys on the songs I'd play it on, since there was a lot of stuff that required really fast key pumping. I want another Juno 106, not the new Juno retro stuff. That and a good workstation can do wonders. I still remember the wonder that was MIDI controlled TR 707 drum machines and sequencers. lol Had to sell all my stuff to pay for meds and lawyers and all after my first divorce. Finally built up another small recording studio back in 1998, but had to sell all the instruments and sound equipment to pay for the 2nd divorce in 2008. Since then, I've just stuck to the bass. Chics don't want to hook up and settle down with a broke ass bass player. No wife, no divorce, no problem. |
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Posted: 7/16/2014 12:02:23 PM EDT
[#39]
Quote HistoryQuoted:
Also, the article's argument that standbys aren't safe because people forget and leave the amp on and cause fire is a moot point in my case. All of my amps are plugged into a power strip, and when I'm done, the strip either gets turned off or unplugged. Been doing it this way for years. WERD! And during particularly active electrical storms, I always unplug the power strip cables from the wall. |
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Posted: 7/16/2014 3:36:05 PM EDT
[#40]
Quote HistoryQuoted:
It is all about the tube life. I have played tube amps since the Early 70's. I have retubed my share of amps. It is exactly like unplugging an instrument cable on an amp that is full up...the surge hits the speaker....which shortens the life of the speakers. So you recommend that too? Over time and after retubing amost for almost 40 years you just know based upon real life...not electronic theory. Ps.....i do understand electrical theories having been an electronics tech Quote HistoryQuoted:
Quoted:
Quoted:
Never played fenders. Only marshalls. Enlighten me on how slamming a tube with plate voltages without warming the tube up does not hurt it How do amps without standby switches, disconnected standby switches, or unused standby switches manage not to be hurt? What is the mechanism by which "slamming a tube" with the plate voltages it is designed to use can "hurt" it? BTW, marshalls were based on fender circuits. If you are running a 1000+ watt transmitter tube, then a standby switch has some utility. In a guitar amp it is a fancy mute ampbutton and does nothing for the life of the tube. If anyone has EVIDENCE to the contrary, by all means post it. It is all about the tube life. I have played tube amps since the Early 70's. I have retubed my share of amps. It is exactly like unplugging an instrument cable on an amp that is full up...the surge hits the speaker....which shortens the life of the speakers. So you recommend that too? Over time and after retubing amost for almost 40 years you just know based upon real life...not electronic theory. Ps.....i do understand electrical theories having been an electronics tech Tubes aren't speakers. Electronics is science, not feelings. 5881 tubes (military short-bottle 6L6) were used in servos on B52 bombers. Do you think the airplane had a standby switch? Since you understand theory, what specifically is the bad thing you think happens to tubes in amps with no such switch? BTW built a tube amp when I was 16 - not from a kit. Hand-formed the chassis out of sheet steel and followed a circuit diagram. SOld and repaired tube and ss amps for years part time. Standby does nothing in an audio amp. It is of some use in RF applications. |
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Posted: 7/16/2014 4:20:16 PM EDT
[#41]
Quote HistoryQuoted:
Tubes aren't speakers. Electronics is science, not feelings. 5881 tubes (military short-bottle 6L6) were used in servos on B52 bombers. Do you think the airplane had a standby switch? Since you understand theory, what specifically is the bad thing you think happens to tubes in amps with no such switch? BTW built a tube amp when I was 16 - not from a kit. Hand-formed the chassis out of sheet steel and followed a circuit diagram. SOld and repaired tube and ss amps for years part time. Standby does nothing in an audio amp. It is of some use in RF applications. Quote HistoryQuoted:
Quoted:
Quoted:
Quoted:
Never played fenders. Only marshalls. Enlighten me on how slamming a tube with plate voltages without warming the tube up does not hurt it How do amps without standby switches, disconnected standby switches, or unused standby switches manage not to be hurt? What is the mechanism by which "slamming a tube" with the plate voltages it is designed to use can "hurt" it? BTW, marshalls were based on fender circuits. If you are running a 1000+ watt transmitter tube, then a standby switch has some utility. In a guitar amp it is a fancy mute ampbutton and does nothing for the life of the tube. If anyone has EVIDENCE to the contrary, by all means post it. It is all about the tube life. I have played tube amps since the Early 70's. I have retubed my share of amps. It is exactly like unplugging an instrument cable on an amp that is full up...the surge hits the speaker....which shortens the life of the speakers. So you recommend that too? Over time and after retubing amost for almost 40 years you just know based upon real life...not electronic theory. Ps.....i do understand electrical theories having been an electronics tech Tubes aren't speakers. Electronics is science, not feelings. 5881 tubes (military short-bottle 6L6) were used in servos on B52 bombers. Do you think the airplane had a standby switch? Since you understand theory, what specifically is the bad thing you think happens to tubes in amps with no such switch? BTW built a tube amp when I was 16 - not from a kit. Hand-formed the chassis out of sheet steel and followed a circuit diagram. SOld and repaired tube and ss amps for years part time. Standby does nothing in an audio amp. It is of some use in RF applications. hate to break it to you...but many mil radars did have warm up functions on the tube elements. Reason stated in the manuals was extending tube life. |
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Posted: 7/17/2014 9:35:01 AM EDT
[#42]
Quote HistoryQuoted:
hate to break it to you...but many mil radars did have warm up functions on the tube elements. Reason stated in the manuals was extending tube life. Quote HistoryQuoted:
Quoted:
Quoted:
Quoted:
Quoted:
Never played fenders. Only marshalls. Enlighten me on how slamming a tube with plate voltages without warming the tube up does not hurt it How do amps without standby switches, disconnected standby switches, or unused standby switches manage not to be hurt? What is the mechanism by which "slamming a tube" with the plate voltages it is designed to use can "hurt" it? BTW, marshalls were based on fender circuits. If you are running a 1000+ watt transmitter tube, then a standby switch has some utility. In a guitar amp it is a fancy mute ampbutton and does nothing for the life of the tube. If anyone has EVIDENCE to the contrary, by all means post it. It is all about the tube life. I have played tube amps since the Early 70's. I have retubed my share of amps. It is exactly like unplugging an instrument cable on an amp that is full up...the surge hits the speaker....which shortens the life of the speakers. So you recommend that too? Over time and after retubing amost for almost 40 years you just know based upon real life...not electronic theory. Ps.....i do understand electrical theories having been an electronics tech Tubes aren't speakers. Electronics is science, not feelings. 5881 tubes (military short-bottle 6L6) were used in servos on B52 bombers. Do you think the airplane had a standby switch? Since you understand theory, what specifically is the bad thing you think happens to tubes in amps with no such switch? BTW built a tube amp when I was 16 - not from a kit. Hand-formed the chassis out of sheet steel and followed a circuit diagram. SOld and repaired tube and ss amps for years part time. Standby does nothing in an audio amp. It is of some use in RF applications. hate to break it to you...but many mil radars did have warm up functions on the tube elements. Reason stated in the manuals was extending tube life. Servos aren't radars. Radars are RF devices, and I've already stated that a standby switch in such a device does indeed serve a purpose. The same is not true in audio frequency applications. |
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Posted: 7/17/2014 9:38:34 AM EDT
[#43]
No new marshall sounds good. get a vintage jcm 800 2203 and live happy.
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Posted: 7/17/2014 9:39:32 AM EDT
[#44]
Quote HistoryQuoted: Standby switches accomplish nothing in an audio frequency amp. Quote HistoryQuoted: Quoted: Quoted: So if I decided to crank up my JCM800 that I've had since the 80s (haven't used it in about 20 years), will I have problems? Might want to pull the chassis out of the head cabinet and look for caps that are leaky or bulged. Other than that, just let it sit on standby for awhile so everything has a chance to warm up at idle. Then go ahead and give it a whirl. Might want to recap it before long, though. And shame on you for letting such a great amp sit unused for that long. Standby switches accomplish nothing in an audio frequency amp. |
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Posted: 7/17/2014 10:28:28 AM EDT
[#45]
Quote HistoryQuoted:
Wow, I'm confused or you just pulled a herpa derp Quote HistoryQuoted:
Quoted:
Quoted:
Quoted:
So if I decided to crank up my JCM800 that I've had since the 80s (haven't used it in about 20 years), will I have problems? Might want to pull the chassis out of the head cabinet and look for caps that are leaky or bulged. Other than that, just let it sit on standby for awhile so everything has a chance to warm up at idle. Then go ahead and give it a whirl. Might want to recap it before long, though. And shame on you for letting such a great amp sit unused for that long. Standby switches accomplish nothing in an audio frequency amp. Guitar player, former guitar and amp repairman and salesman, vocationally trained in electronics and have hand-fabricated amps from the chassis up. In an audio frequency amplifier, at powers below 1000 watts, a "standby" switch is nothing more than a poorly engineered "mute" button. It is incapable of prolonging tube life, and use of it instead of shutting off the amplifier is a fire hazard, and actually shortens tube life because you are running the heater circuits when they don't need to be. Stand-by switches are useful in radio frequency applications, especially with output tubes of high power, which are very expensive and somewhat tempermental. They do nothing for 6L6s, EL34s, & the like. Caveat - assuming properly sized and rated compoents in the rest of the amp. |
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