[Amps] My 813GG amp works

[Bill Fuqua]

My first QRO amplifier was a pair of 813's that I built as a teenager. I 
got a transmitter at HS electronics in Miami.  It came with a lot of spare 
tubes and loads of parts. Also had a 811 modulator and a separate power 
supply. The power supplies were 1500 and 2000 volts. Any way I made a 
simple grounded grid amplifier and drove it with a pair of 6146B's which in 
turn was driven by a 20A exciter. Worked great. Later I got an HT4 and lots 
of spare 250th tubes. I ran 2 in grounded grid which worked well 
also.  Never got a full gallon on SSB but could on CW.

73
Bill wa4lav

At 12:22 PM 4/30/2007 -0500, you wrote:
>  Hello all,
>
>Taking some advice about putting that homebrew 813 GG, that I bought, on
>the air for a while before I try to modify it for other bands. I to try
>it on Saturday night/Sunday morning around 1230 AM for the first time.
>The wife was snoozing in bed, I thought... why not give it a go...
>
>So I tuned it up into the dummy load on 3810 kHz, driving it with 65
>watts out of my transmitter through my antenna tuner to match the
>transmitter and the amplifier, I flipped the switch the watt meter
>indicated 650 -700 watts out of the amplifier and into my antenna,  got
>a "sounds mighty fine" signal report... and then our house alarm went
>off... And it wasn't even "armed"
>
>Needless to say, the wife got out of bed... she said, well I guess it
>works, but can you not use it again until you figure out how to keep
>that from happening again...
>
>I guess the alarm system didn't like that amount of RF, but the amp
>works!
>
>Now I need to solve that alarm problem...
>
>Scott
>W5EFR
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