Well, here you go..
The amplifier uses a single 4CX1500B ceramic tetrode. The RF deck ( 60 plus lbs.) and separate robust power supply (130 plus lbs.) are built for military or commercial use. The power supply can be configured for either 110Vac or 220Vac. Recommend the 220Vac configuration.
The amplifier will auto-tune within 3 seconds into a 2:1 or better 50 ohm load using an internal Jennings vacuum cap and heavy duty variable inductor tuning network.
I am using the amplifier just as a DX pile-up breaker and can tolerate the fan noise generated by both the fan in the power supply and the RF deck. If one is looking for an amplifier that can tolerate a long winded qso, or RTTY operation, the GSL-1900a appears to meet the requirements.
Hope that meets your requirements.
If so, then donate the membership to (pick a deserving person)
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BTW this info above compliments of : http://www.eham.net/reviews/detail/2449
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