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[Amps] yc156 specs

To: <amps@contesting.com>
Subject: [Amps] yc156 specs
From: davek at medphys.ucl.ac.uk (Dr. David Kirkby)
Date: Tue Feb 25 06:12:03 2003
Lynn wrote:
> 
> Hello,
> 
>     I am getting ready to start testing a new yc156 amp.
> 
>   I am in need of operating paramaters (real life)
> 
>  If you have information about expected performance under 5kv plate
> voltage ,
> I would be interested.
> 
> I would like to know your results for the following:
> 
> Plate voltage
> Bias voltage on cathode
> zsac (idling plate current without drive applied)
> idling grid current
> 
> and then plate current and grid current at 1500 watts output
> 
> Any help appreciated
> Thanks in advance
> 
> Lynn  NO9Z

A scanned data sheet of the YC156 is on my web site
http://www.medphys.ucl.ac.uk/~davek/ham/data/yc156.pdf

I've been told three things of possible interest:

1) It's the same tube as the 3CPX5000A7
http://www.medphys.ucl.ac.uk/~davek/ham/data/3cpx5000a7.pdf
apart from some tests performed at Eimac. 

b) The only difference between the YC156 and the 3CX150000B7 
http://www.medphys.ucl.ac.uk/~davek/ham/data/3cx15000b7.pdf
is the larger anode cooler on the latter tube. 

c) It needs a reasably high HT to get going properly - I think 4 kV was
suggested by someone at Eimac to me.
 

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Dr. David Kirkby PhD,
Senior Research Fellow,
Department of Medical Physics,
University College London,
11-20 Capper St, London, WC1E 6JA.
Tel: 020 7679 6408 Fax: 020 7679 6269
Internal telephone: ext 46408
e-mail davek@medphys.ucl.ac.uk  
Web page: http://www.medphys.ucl.ac.uk/~davek
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