Amps
[Top] [All Lists]

Re: [Amps] Quad Tube 4cx800 hf amp

To: amps <amps@contesting.com>
Subject: Re: [Amps] Quad Tube 4cx800 hf amp
From: gdaught6@stanford.edu
Date: Thu, 25 May 2006 23:07:12 -0700
List-post: <mailto:amps@contesting.com>
On 26 May 2006 at 4:25, Jim Kearman wrote:

> > You've got some problems.  First of all, the tube is good for 2 KV DC and 
> > pushing it to 2.6 KV would not be recommended.
> 
> FWIW, both Alpha and Ten-Tec amps run the 4CX800A at >2000 V. In both cases I 
> believe the loaded Ep is ~2700 V. The Peter Dahl replacement transformer for 
> the Alpha 87A has a 2050-Vac secondary, which should provide ~2900 Vdc 
> unloaded. The Svetlana datasheet for the 4CX800A gives a maximum plate 
> voltage of 2500.

I have run a 4cx800a at 2500 volts (and 350v on the screen) for 10 
years with no problems.

73,

 George T. Daughters, K6GT




_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps

<Prev in Thread] Current Thread [Next in Thread>