This should be noncontroversial.
The TL-922 manual includes several warnings against operating the
amplifier on CW in the SSB position (The CW/SSB switch changes the
no-load plate voltage from about 2KV in the CW position to 3KV for SSB).
My feeling is that the 'serious damage' that they are warning about
would be a burned out plate transformer as a result of the slightly
higher duty cycle of CW. The transformer looks a little lightweight for
this application.
However, if the mode switch did not reduce the voltage for CW, but
instead increased the bias to limit the ZSAC to close to zero, the load
on the transformer would be significantly reduced. The increased IMD
would be irrelevant for CW.
But... reduced enough to safely allow CW (not RTTY!) operation at 2600v
(loaded) and 700-800 ma? Any comments?
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|