Re: tube coils

• To: tesla-at-pupman-dot-com
• Subject: Re: tube coils
• From: FutureT-at-aol-dot-com (by way of Terry Fritz <twf-at-verinet-dot-com>)
• Date: Tue, 02 Mar 1999 17:10:00 -0700
• Approved: twf-at-verinet-dot-com

In a message dated 99-03-02 05:09:20 EST, you write:

<< Hi,
> Has anyone had experience using an 838 triode? These bottles can handle 100W
> of plate dissipation off of a big graphite plate. They run at 1250V -at- 175mA.
> The base is the jumbo 4-pin with a bayonet-stud shell.  A pair of these
should
> make
> a nice blowtorch. Anyone ever make a TC using these tubes?
> Thank you.
> Ralph Zekelman 
  >>

Ralph,

I never used the 838's but I used 845's which are similar except
mostly for the lower (?) plate voltage.  I obtained 19" sparks from 
one 845 tube by running it well above it's rated voltage.

John Freau

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