An easy to step the power up to a useable amount would be to build a
very simple grounded grid amplifier. Oddly enough a grounded grid 6AG7 with
500 to 600 volts on the plate would give you a power gain of 15 to 20. No
bias required or neutralization. That would get you easily to 8 or 10 watts.
I used to run 4 in parallel with 1100 volts on the plates. Would not
recommend it today. No splatter complaints but those days bands were less
crowded and were shared with a lot of AM stations as well.
73
Bill wa4lav
At 03:17 PM 11/10/2006 -0500, StephenTetorka@cs.com wrote:
>Hi Guys:
>
>Figure if anyone knows...you guys sure would.
>
>Here's my challenge.
>
>I picked up a beautiful homebrew SSB generator...K2YOR SK RIP...circa 1957 -
>1967'ish...up at Hosstraders before the camping/singing/drinking...great trip!
>
>I got it basically working on 80 & 20...can't say how well as the scope
>patterns are new to me...and just don't exactly match those I've seen in
>the texts
>etc...( took pictures of them if anyone wants to see.)
>
>The RF output is a 6CL6...with I'd guess ...maybe 0.5 watts out...if that
>much.
>
>I could try it as QRP...and probably will as its sitting ready.
>
>But I'd like a little more output - as I've got enough challenges in other
>departments to keep me occupied...
>
>The only linear I have is a Shoebox II...also homebrew...per CQ Magazine July
>1967...uses 4 each 6HF5's..does FB with a 20 to 40 watt exciter...grounded
>cathode/untunned grid input.
>
>Soooo...I need a 'booster amp' if I might call it that...to interface between
>the 6CL6 and my Shoebox.
>
>It just so happens that I have a homebrew 6146 using a 12BY7 oscillator.
>
>Therefore, I thought I'd ask for your generous suggestions before I go into
>surgery outputting RF into the grid circuit of the 6146...ie...bias,
>matching,
>plate E and I...etc.
>
>Kind regards,
>Steve
>WA2TAK
>Keepin them glowin...
>
>
>
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