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Last update was 11/07/2009

its running 1600-1800w now out no problem on 80, 40, 20m,

 

It needs a front panel make over

 

 

   

   

       

              schematic so far

 

   

weekend work done

             

28vdc relay board piggybacked on the Tetrode boards, some HV wiring placement, and the

tube socket with the glitch resistor, plate choke and assorted goodies on the socket

I breadboarded the HV indicator circuit using 2 LM3915's (I'll use 4 or 5 total for) for a 40 or 50 led  bar

display, here are 20 leds lit from input voltage, they vary as a bar...with voltage input.

 


OLD AMP: above changes will clean this all up, more bands, better control

Here is an amp based on JH2CLV's 6m gu-84b amp. see his web page at

http://www5a.biglobe.ne.jp/~jh2clv/gu84b6mmaking.htm

My GU-84b 80, 40 and 20m AMP project Pics

the only part I didn't do was the case and the transformers, all the rest was hand made

(and some of it looks like that LOL)

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        Schematic