Just a few additional points:
- The 6DZ7 was ONLY made by GE, so it was a single-source tube (which
didn't help it's popularity, I'm sure). It's basically two 6BQ5s in one
envelope. It dissipates a LOT of heat in a very small package, so I
imagine that it wasn't popular for that reason too.
- The only amateur gear I'm aware of that used the 6DZ7 is the Heath
Shawnee/Pawnee VHF rigs. I have a Shawnee here that someone, who
apparently couldn't find a 6DZ7 at the time, fabricated a neat adapter
to allow the use of two 6BQ5s instead.
- N9TEW lists a price of $3 for the 6DZ7, assuming that he has any at
all. http://www.hamtubes.com/tubes/list2.htm
- N4TT lists a price of $4 for the 6DZ7, again assuming that he has any
at all. Typetronics PO Box 8873 Fort Lauderdale, FL 33310-8873 954-583-1340
- ESRC lists a price of $5 for the 6DZ7, again assuming that he has any
at all. http://home.att.net/~esrc/esrcs2.html
Usual disclaimers apply.
OHH! By the way: does anyone have a meter for a Pawnee/Shawnee that
they could part with? I need one.
regards,
Mahlon - K4OQ
--__--__--
Message: 1
From: "Jim candela" <[EMAIL PROTECTED]>
To: <amradio@mailman.qth.net>
Date: Sat, 13 Sep 2003 08:32:44 -0500
Subject: [AMRadio] WTB: 6DZ7 Tubes
Reply-To: amradio@mailman.qth.net
Hi Group,
I am looking for some 6DZ7 tubes. These are dual pentodes in a 6L6GC
size
package (octal). Each pentode is similar to a EL84/6BQ5. This is because I
am restoring some tube type audio gear that originally used 7591's as output
tubes. The problem is I used most of my 7591's in my collection of Central
Electronic 20a's as a class Ab1 RF linear amplifier (~ 55 watts pep output
from a pair, and > 10 watts AM). I converted one Fisher X-101=B amp over
from 4- 7591's to two 6DZ7's, and that came out working wonderful. I was
surprised. I need some spare 6DZ7's and I was hoping to find a pile of NOS
6DZ7's for ~ $5.00 each. I would also like to win the state lottery too!
Anybody out there with some of these odd tubes that don't know what to do
with them?
Btw, 6DZ7's were made by GE, and they never seemed to take off in
commercial gear. Sylvania made a similar tube, the 6DY7 that appears to be
closer to two 6AQ5's in a single envelope. Anybody know the history of these
tubes?
Here is a application note about 6DZ7's used as AM Ham modulators:
http://www.triodeel.com/ham1.gif
http://www.triodeel.com/ham2.gif
Regards,
Jim Candela
WD5JKO
