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Peter Voelpel | profile | all galleries >> Auf die Dauer hilft nur Power >> conversion of a 2000D generator by Henry Radio tree view | thumbnails | slideshow

conversion of a 2000D generator by Henry Radio

This is a former 27MHz generator final.
The original faceplate has been removed and is replaced by a new aluminum front chassis to get more chassis depth for mounting the parts for an allband ham amplifier.
Tube is a 3CX3000A7. Eventually a driver stage with 4CX600J will be included on a subchassis.

The early thoughts have been revised and a roller coil found cheap on a flea market is used instead of switched coils.
160-40m is Pi-L, higher bands are simple Pi.
All switching on the antenna coil is done by hv vacuum switches.
From 10Mhz on the coil is shorted out completely together with part of the roller coil.
The lower rf choke is shorted out by a hv relay as well then.
Henryamp
Henryamp		 Henryamp
Henryamp		 Henryamp
Henryamp		 Henryamp
Henryamp
Henryamp
Henryamp		 Henryamp
Henryamp		 21kva.jpg
21kva.jpg		 21KVA_TR.jpg
21KVA_TR.jpg
160m coil
160m coil		 10-160m ready
10-160m ready		 vari coil
vari coil

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Peter Voelpel16-Jun-2022 19:36
Hi Ross, I have still the variable coil of the 27MHz model left but going to use it for another 15m amplifier. The original transformer is probably good for 4KVA CCS.
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