[Hallicrafters] Audio output on SX42/SX62

[W7QHO at aol.com]

In a message dated 5/12/06 7:43:09 PM, Julian.Bunn at caltech.edu writes:


> Is it unwise to power up these receivers without a speaker connected
> (e.g. while checking voltages etc.)?
> 
> I wonder because I've read that push-pull tube amps shouldn't be
> powered on without a speaker attached - does this make any sense?
> 

With no load on the amp, there is a potential for high voltages to be 
developed that could zorch the output trans.   However, over the years I've 
inadvertently done this with my SX-42 (and other receivers) numerous times with no bad 
results.

Dennis D. W7QHO
Glendale, CA