Date: Fri, 2 Dec 2011 19:53:29 -0700
From: "Fern" <crc@cyberlink.bc.ca>
Subject: [Amps] re eimac 3cx1200 tube
Can the eimac 3CX1200Z7 tube but used in lieu of the 3CX1200D7 tube in an hf
amplifier without any modifications? I know that the filament voltages are
the same and use the same tube socket,
Looking for any advice with this. 73 from Fern VE7GZ
## The Z7 version has a grid flange on it, which is bolted to the chassis. I
THINK
the Z7 has a pair of fil lugs down below, in lieu of the normal socket. IE:
I believe
the Z7 version does not require a socket at all. Ameritron has switched to the
Z7
version on their AL-1200 amps, and that's very recently. As far as I know,
Eimac is the only one who makes the Z7 version..and it's a VERY expensive tube
per RF parts price list.
## Eimac's on line data sheets on all 3 x versions are out to lunch. The Z7
only has .2 pf
pf anode to cathode C. The other 2 x versions are both much higher. The
Z7 is the most
stable of the 3 x versions.
later... Jim VE7RF
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|