[Amps] IMD numbers for Russian tubes

[Partain, Chuck]

hey! and I thought I Was getting EXPERT advise :)

-----Original Message-----
From: amps-bounces at contesting.com [mailto:amps-bounces at contesting.com]On
Behalf Of Conrad_G0RUZ
Sent: Tuesday, January 31, 2006 2:11 PM
To: 'Ampscontestingcom'
Subject: Re: [Amps] IMD numbers for Russian tubes


They are much better than anything that you are likely to have as a driver
Theo. Based on anecdotal evidence (I have never measured one myself) I
believe the GS35B to be 4-6 dB worse on 3rd order IMD products than a 8877.
This is hearsay but there again much of what passes for fact on this
reflector is :-)

73

Conrad G0RUZ

> -----Original Message-----
> From: amps-bounces at contesting.com 
> [mailto:amps-bounces at contesting.com] On Behalf Of Theo Bellamy
> Sent: 31 January 2006 18:38
> To: Ampscontestingcom
> Subject: [Amps] IMD numbers for Russian tubes
> 
> I have been thinking about changing my plans and building an 
> amp with a Russian triode(s) in it. In reading the web about 
> these tubes it seems that most of them were designed to be 
> Radar Oscillators and such, and the fact they work in HF 
> linear amps is just a pleasant happenstance.
> 
> But I can't find any IMD figures on them. How clean are they, 
> compared to something like an 8877?
> 
> Thanks,
> Theo K4MO
> 
> 
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