Bob Sullivan wrote:
> Listsmates,
>
> I'm working on a Globe King 400 ... conventional push-pull output using a
> pair of V70D's and link coupling. Design operating current is 300ma and for
> the life of me I cannot load above 200ma (into dummy load).
>
> 1. Off resonance current is >500ma
> 2. Tested with two sets of tubes
> 3. HV correct at approx 1400v
> 4. Tried links of 3 turns (original) and 5 turns - no difference
> 5. Tried vari cap in series with link - no help
> 6. Grid current correct at 40ma
Are you sure there's continuity through the link to the dummy load or
antenna? It sounds like the stage is operating without a load. Antenna
relay?
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|