User Panel
[#1]
That's good.
The grid bias meg-ohm resistors may be the most critical... |
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[#3]
I can only test 6 of the eleven tubes with the tester I have.
5 test pretty good and 1 is a tad on the low side. I can't test the thyratron or any of the #'s only tubes (42, 37...) Hope to order up parts tomorrow. |
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[#4]
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[#5]
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[#6]
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[#7]
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[#9]
When you put the speaker back in, if there's enough wire, put it in upside down from the original mounting.
The reasoning... Over time gravity will cause the foam to sag and the voice coil can contact the magnets causing a ton of distortion and eventually will short out the coil. This is a must do on larger speakers ie: 15s and bigger. I tell all the guys that get repairs to flip their cabinets for storage occasionally. Where this radio is old it sure couldn't hurt. Nice looking job.. good luck with it. |
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[#10]
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[#11]
Went to replace that metal canned capacitor you see in pic above down right just to find out I don't have the right one.
The schematic says it's an electorlytic cap but it has 2 black wires coming out. Asking in a diff forum about it it turns out that it is a non-polarized motor start capacitor. So it looks like I have two options 1) buy one, they are a little spendy for a single unit 2) make one out of two electrolyic caps Still working on this. |
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[#12]
Quoted:
Went to replace that metal canned capacitor you see in pic above down right just to find out I don't have the right one. The schematic says it's an electorlytic cap but it has 2 black wires coming out. Asking in a diff forum about it it turns out that it is a non-polarized motor start capacitor. So it looks like I have two options 1) buy one, they are a little spendy for a single unit 2) make one out of two electrolyic caps Still working on this. View Quote |
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[#13]
Beautiful radio. Thanks for sharing the rebuild.
Txl Eta. Batteries plus around here has a tube tester. You might check yours. |
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[#14]
Quoted:
What's the value? Should be easy to sub... View Quote View All Quotes View All Quotes Quoted:
Quoted:
Went to replace that metal canned capacitor you see in pic above down right just to find out I don't have the right one. The schematic says it's an electorlytic cap but it has 2 black wires coming out. Asking in a diff forum about it it turns out that it is a non-polarized motor start capacitor. So it looks like I have two options 1) buy one, they are a little spendy for a single unit 2) make one out of two electrolyic caps Still working on this. Apparently not to easy to find. I also like to just use what I have if I can. |
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[#15]
Quoted:
30uF @ 30v Apparently not to easy to find. I also like to just use what I have if I can. View Quote US $3.60 https://www.ebay.com/itm/5pcs-160V-33uF-160V-YUF-NP-16x36mm-Non-polar-Electrolytic-Capacitor/112380229987?hash=item1a2a623963:g:lt4AAOSwUlRZu3Eq Lots of other alternatives there... Don't like using polarized electrolytics back to back in ac power aps... |
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[#16]
Quoted:
5pcs 160V 33uF 160V YUF NP 16x36mm Non polar Electrolytic Capacitor US $3.60 https://www.ebay.com/itm/5pcs-160V-33uF-160V-YUF-NP-16x36mm-Non-polar-Electrolytic-Capacitor/112380229987?hash=item1a2a623963:g:lt4AAOSwUlRZu3Eq Lots of other alternatives there... Don't like using polarized electrolytics back to back in ac power aps... View Quote View All Quotes View All Quotes Quoted:
Quoted:
30uF @ 30v Apparently not to easy to find. I also like to just use what I have if I can. US $3.60 https://www.ebay.com/itm/5pcs-160V-33uF-160V-YUF-NP-16x36mm-Non-polar-Electrolytic-Capacitor/112380229987?hash=item1a2a623963:g:lt4AAOSwUlRZu3Eq Lots of other alternatives there... Don't like using polarized electrolytics back to back in ac power aps... Guess I could order that and if I'm ready for power up before they arrive I'll just make one for temporary use. Looks like delivery could take a while. |
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[#17]
Quoted:
Hmm Guess I could order that and if I'm ready for power up before they arrive I'll just make one for temporary use. Looks like delivery could take a while. View Quote You can get a motor starting cap w/ a high V rating to use temporarily from US Sellers for abt $8 or so. I bought one a few years ago for a small band saw and the cap is pretty small. On the left side of the eBay page there is a check off for just N-America Sellers, I use that when I'm in a hurry. |
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[#18]
So a lot of the wiring in here is stranded so I figured I would get some stranded wire to use as well.
Mainly where there may be movement so that the stranded can flex a bit. Received the wire and there is no black. Two shades of blue but no black. Contacted seller and doesn't know why it is not black and asked if I wanted to ship back. I said eff it and bought some from ebay. The correct response should have been "go ahead and keep the dark blue and I'll send a black to you". |
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[#19]
Quoted:
So a lot of the wiring in here is stranded so I figured I would get some stranded wire to use as well. Mainly where there may be movement so that the stranded can flex a bit. Received the wire and there is no black. Two shades of blue but no black. Contacted seller and doesn't know why it is not black and asked if I wanted to ship back. I said eff it and bought some from ebay. The correct response should have been "go ahead and keep the dark blue and I'll send a black to you". View Quote Ask him to send a Return Tag so you can send it back and then he can resend the correct wire. If he makes trouble, leave Negative Feedback. |
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[#20]
Quoted:
eBay Seller is responsible for return shipping when the item is 'not as described'. Ask him to send a Return Tag so you can send it back and then he can resend the correct wire. If he makes trouble, leave Negative Feedback. View Quote View All Quotes View All Quotes Quoted:
Quoted:
So a lot of the wiring in here is stranded so I figured I would get some stranded wire to use as well. Mainly where there may be movement so that the stranded can flex a bit. Received the wire and there is no black. Two shades of blue but no black. Contacted seller and doesn't know why it is not black and asked if I wanted to ship back. I said eff it and bought some from ebay. The correct response should have been "go ahead and keep the dark blue and I'll send a black to you". Ask him to send a Return Tag so you can send it back and then he can resend the correct wire. If he makes trouble, leave Negative Feedback. I did tell him to check his shit though. I can't be the only one with this issue. These 25' rolls come from a much bigger spool I'm sure. |
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[#21]
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[#22]
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[#24]
Well today was "power up" day.
Brought it up nice and slowly with the variac. IT'S ALIVE!!! Linky Now that we know we have potential we can continue on replacing wiring and whatever else we find. |
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[#25]
More of the AWESOMENESS that we have come to expect, no demand, of Edisla.
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[#26]
I wanted to see if there was life on the remote control receiver/stepper unit so I fired up the RF generator and started to scan around 350-400Hz.
Looks like 365kHz is the sweet spot. I found a list of the different freqs they used for different labeled controls but couldn't find it. Will look later. Mine is labeled Control 6. Linky Thyatron glows blue when triggered |
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[#27]
One thing that was not working was the volume motor.
All it would do is buzz. I don't have the new cap in yet so I just left the original one in there. I just put 2 electrolytics back to back just to try it and confirmed that the original cap is bad and that the motor does work The unit is powered down and I will start redoing the wiring and get the new cap in when it arrives. |
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[#29]
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[#30]
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[#31]
Small update.
That plate cap seemed to go back on pretty good with the JB Weld. I have since soldered it back down as well. Received the new non-polarized cap for the start/run motor yesterday and will work to get that in soon. Continue to replace old wiring. Getting the easy stuff out of the way first. 18 awg stranded wire ordered for the power transformer leads that need replacing. |
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[#32]
I love reading / seeing your updates! Restoring this is a thing of beauty.
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[#33]
The tube wire is a special alloy that is able to wet the glass to form a high vacuum seal and also has a coefficient of expansion compatible with the glass.
Be care of using too much adhesive unless if is known to have similar characteristics to the glass. I think you are OK with the repair. |
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[#36]
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[#40]
Power transformer wires came in today.
Going to need a good chunk of uninterrupted time to swap those out. |
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[#41]
Sorry this is slow going but need to have the right time to do some of this stuff.
Hang in there. |
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[#44]
Nice work on the transformer. I bet that's a bit stressful. I did a 1941 zenith console a few years ago, although not as complex as your philco, I had to completely rewire it. I hate that rubber wire.
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[#45]
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[#46]
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[#47]
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[#48]
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[#49]
Amazing project.. Been watching since the start.
If you weren't so far away I'd let ya have a go at an old ham radio I have. National NCX-1000. Sure would like to get it back on the air... And for those curious... YES I hold an extra class license. Just not good with the finer points of restoration . Looking fwd to the next pix of your repairs.. 73..FN |
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