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Now dont you start Alek...you are one of the Aussies I actually like! AND who doesnt speak like some overblown ego Brit in order to cover incompetence...or is it incontinence? Carl

Kinda like Popeye and Bluto friendhip. Sent from AOL Mobile Mail Get the new AOL app: mail.mobile.aol.com

## Why even mess with a tetrode ? My problem with the GU74B ......" 4CX-800" is the ski high 225 ma idle current requirement PER TUBE ! And that's just to get the IMD to acceptable levels. That's

Agree about the sad loss of Rich there Carl. But on the subject of the venerable GU74B tube we contraire with diametrically opposite opinion. This little tetrode is the best ham radio amplifier tubes

I have a GU-78B that has developed a grid short. I have determined the grid short initiates about 2 minutes after power on and ends after about 5 minutes. I have tried unsuccessfully to 'burn' the

Somebdy has forgotten to take their pills today. Bad boy Carl. :-) Alek. VK6APK

Like I said something is filtering posts. I can post a test message only. Doug Canada; the ship of fools where corruption and politics are synonymous

Let's try this post for the 3rd time and see if it comes through. I have a GU-78B that has developed a grid short. I have determined the grid short initiates about 2 minutes after power on and ends

Other than one of my test e-mails getting through, other posts have not. Something is screwed up! And nothing is coming through on the Amps reflector either. Doug "The difference between stupidity and

YAWN At least Rich and I were friends since about 1996 and I miss him I cant say the same about you. Go back under your GU-74B rock and behave Carl

Indeed Joe, the forum has been quite slow since the sad demise of central protagonist Rich Measures and the Rich / Carl sideshow jousts... There's more interesting activity on the Amps group nowadays.

No, not dead, been a bit slow, but not slow enough to worry. Joe - W7RKN

Beep...beep...beep...beep...beep...

I have a GU-78B that has developed a grid short. I have determined the grid short initiates about 2 minutes after power on and ends after about 5 minutes. I have tried unsuccessfully to 'burn' the

OK the reflector is working now. Before, my message disappeared. I have a GU-78B that has developed a grid short. I have determined the grid short initiates about 2 minutes after power on and ends

Canada; the ship of fools where corruption and politics are synonymous Ham Amplifiers reflector dead?

Did you try tuning the choke about 30 Hz higher? Carl

I made a serious error when plugging numbers into the PSUD-2 power supply software. Like an idiot, I used the wrong plate xfmr DC primary resistance. I was plugging in ".1 ohm"..... when it shoulda

Ok, here is why a.... C1 - resonant choke - C2 cap is 1 step forward and 6 steps backwards. Ditto with a classic ( henry radio style) .. resonant choke - Cap config. When you resonate the choke, at

Hi Jim, Sorry about the late answer. I ending 1300W with 70W amp and grid current on the limit. I will keep it like this for now. Several coil have been tested and the last one was the best