Spare NOS ham radio parts and Dyna Transformers
I built this pair of amplifiers from a Dynaco design. The diagram was included in an advertisement for there A-451 output transformers. I just happen to have a pair and also a pair of the power transformers to match. I have been a ham radio operator/repairman for years and had other parts like ceramic tube sockets and such. They may not be pretty but boy they sound good for a almost 50 year old design! I have since changed the output tubes to 4ea. EL34/6CA7's. They sound even better than before...
I built this pair of amplifiers from a Dynaco design. The diagram was included in an advertisement for there A-451 output transformers. I just happen to have a pair and also a pair of the power transformers to match. I have been a ham radio operator/repairman for years and had other parts like ceramic tube sockets and such. They may not be pretty but boy they sound good for a almost 50 year old design! I have since changed the output tubes to 4ea. EL34/6CA7's. They sound even better than before...
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Hi all,
I have built in new circuitry into older JADIS JA-30 monoblocks, which at original sounded boring, dark and no vivid.
Now it sounds much much better with very good details and dynamics, still with all basic parts kept as original (power supply and heating, output transformer, etc.)
Now it uses 2x ECC82 and 2x 6550C SE triode connected.
some pics, schematics and measurement is here: perys | perys - Jadis-JA-30_mk2012 ? rajce.net
I have built in new circuitry into older JADIS JA-30 monoblocks, which at original sounded boring, dark and no vivid.
Now it sounds much much better with very good details and dynamics, still with all basic parts kept as original (power supply and heating, output transformer, etc.)
Now it uses 2x ECC82 and 2x 6550C SE triode connected.
some pics, schematics and measurement is here: perys | perys - Jadis-JA-30_mk2012 ? rajce.net
An externally hosted image should be here but it was not working when we last tested it.
My prototype 2A3 "loftin white" driving my BL horn speakers 🙂
find out more here : http://sarris.info/main/2a3-tube-amp
find out more here : http://sarris.info/main/2a3-tube-amp
Отличная работа мой друг, прекрасно выглядит
С уважением
GA-Audio
Excellent work my friend, looks good
Yours
GA-Audio
