[Central-Electronics] Re: +AFs-Central-Electronics+AF0- List alive?

[Colin Lamb]

Rolynn Prechtl K7DFW wrote:

> 
> 
>>I also have a 20A and the 458 VFO combo. I find the low power
>>is a little less than I would like. Any one with ideas on a
>>linear.
>>
> 
> Back then (high school student/late 50s) we would gaggle a group of eight
> 6AG7s with 1000/1200 volts on the plates and run the crap out of them as a
> linear.
> 
> The tubes were only two bits a piece and easily obtainable. They would run
> so hot that the metal envelopes would turn red. So what if they didn't last
> too long, they were cheap.
> 
> Quick and dirty way to get a couple hundred watts for the faithful 20A.
> 
> It was fun to be young.
> 
> K7DFW
> 
> ...+AF8-.+AF8-
> 
> +AF8AXwBfAF8AXwBfAF8AXwBfAF8AXwBfAF8AXwBfAF8AXwBfAF8AXwBfAF8AXwBfAF8AXwBfAF8AXwBfAF8AXwBfAF8AXwBfAF8AXwBfAF8AXwBfAF8AXwBfAF8AXw-
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> 
> 

Hi Rolynn:

I still have a 4 X 6AG7 amp.  Ran 1000 volts on the plate and the amp
still has the original tubes.  Could not burn them out.  Ran about 200
watts input.  Drove it with a home brew single 6AG7 rig with just a
couple of watts out.  The 10B or 20A should drive the daylights out of it.

Will have to get that out again.  Both rigs run, but goal for next year
is to get the tuned up perfectly and on the air.  Have a home brew solid
state vfo built into a BC-221 case.

73,  Colin  K7FM