[Amps] SOURCE FOR 3CX800'S

[Carl]

What do they mean by low grid current?

I would assume that for medical amps they require less drive and Ig for the 
same output as higher Ig tubes but at lower IMD.

Im just surprised they dont quantify it.

Carl
KM1H



----- Original Message ----- 
From: "Robert Dorchuck W6VY via Amps" <amps at contesting.com>
To: <amps at contesting.com>
Sent: Wednesday, October 15, 2014 9:37 PM
Subject: Re: [Amps] SOURCE FOR 3CX800'S


> Alpha has 3CX800A7's for $400.  That's not much more than 4CX800's.
> Bob  W6VY
>
>
>
> ________________________________
> From: Mike Tubby <mike at tubby.org>
> To: amps at contesting.com
> Sent: Wednesday, October 15, 2014 2:46 PM
> Subject: Re: [Amps] SOURCE FOR 3CX800'S
>
>
> Steve,
>
> The 3CX800 is becoming a premium and "hard to get" tube... have you
> considered modifying the Alpha to use 4CX800 (GU-74B) tubes which are
> plentiful and cheaper?
>
> Regards
>
> Mike G8TIC
>
>
> On 14/10/2014 23:31, Steve Bookout wrote:
>> Hello all,
>>
>> Recently picked up an older Alpha and was thinking of making the
>> conversion to a pair of 3cx800's from the 3 x 8874's which are in the
>> amp.
>>
>> Any suggestions on a source for good 3cx800 pulls?
>>
>> 73 de Steve, NR4M
>>
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