[Amps] Anyone build a GU5B?

[jeremy-ca]

If glass is acceptable how about a 3-1000Z? Demand is down and full output 
ones show up fairly often.

Carl
KM1H


----- Original Message ----- 
From: "Tom Rauch" <w8ji at contesting.com>
To: "Roman Hanovych" <romanh at kb.lv.ukrtel.net>; "Amps Amps" 
<amps at contesting.com>
Sent: Thursday, October 04, 2007 8:27 PM
Subject: Re: [Amps] Anyone build a GU5B?


>> Played with them some 10 yrs ago, as much as I remember at
>> 6 kV gain was
>> still below 10 db, but never
>> tried to optimize the circuit - it was more than enough.
>
> That's too bad. That prevents use with 1500W output and I
> did not want to use much more than 4 kV.
>
> How much bias do they take Roman? It looks like the mu is
> low and the input impedance is high.
>
> I'm trying to find a cheap triode that will run steady
> nearly 100% on time at 1500 watts output with 100 watts of
> drive. I also want instant heating.
>
> 73 Tom
>
>
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