"DOUGLAS" wrote in message
k.net...
Has anyone tried to use the 8560 tube (common in older Motorola Micor,
etcVHF repeaters
as a replacement for the conduction cooled /Eimac 8873 tube?

Both have similar specs and I'd like to keep the conduction cooled feature
of my SB-230.

tnx,

Doug/WA1TUT

Doug -

Skipp May wrote about this on the AMPS reflector a few years ago.
It is a smart conversion to maintain the quiet operation - BUT with a bit
less power.
I have never seen a web page outlining this change (parts, photos and
instructions).

Check his Sonic / RadioWrench web page (link below) or contact him directly
http://www.radiowrench.com/sonic/

w9gb