[AMPS] more tubes

[John T. M. Lyles]

I just got a new catalog from Marconi Applied Technologies, the new 
name for English Electric Valve. They have dropped the second 
sourcing of Eimac-style 3CX, 3CW and 4CX, 4CWxxxx triodes and 
tetrodes for broadcasting, but stayed with the industrial heating 
versions of the tubes (low to medium mu triodes). Their website is 
interesting, still referencing the word tetrodes.

http://www.marconitech.com/products/triode/indprod.html

They also make crowbar protection systems for high power high voltage 
supplies. See the notes on their website, under thyratrons. They list 
the crowbar units separately and have a simple schematic on their 
data sheets.

John
K5PRO




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