[Heathkit] RF freq generator

[Richard Keller]

Thanks Dave et al. I will use the 6AV5GA and it should be fine in this
application.
73, Dick KF4NS
St. Petersburg, FL 33714 USA
Keep the glow!

----- Original Message -----
From: "W. David Paperman" <wpaper at ev1.net>
To: "Richard Keller" <rkeller at ij.net>
Sent: Tuesday, August 24, 2004 7:47 PM
Subject: Re: [Heathkit] RF freq generator


| Dick;
|
| Speaking from the viewpoint of the 6AV5 characteristics only; It was
| only available in glass types (as opposed to other types of tubes,
such
| as the 6L6 which, without a "G", "GT" etc. suffix would have
indicated a
| metal envelope) which means that the original was either a "G"
(large
| glass envelope - doubtful as that Heathkit model was not that old)
or
| the "GT" which was the most popular version of the 6AV5. The "GA"
should
| work just fine in the amplifier application.
|
| Dave, W5WP
|
| Richard Keller wrote:
|
| > Ran into a snag today in the process of restoring my old Heathkit
LG-1
| > (same as IG-42) regarding the 6AV5 AMP tube. Schematic and manual
only
| > mention 6AV5 but the available tubes are the 6AV5GT and the
6AV5GA.
| > What came with the LG-1 and the IG-42? Was there ever
| > just a 6AV5? Can't find it after 1952 tube book but don't have
| > anything earlier.
| >
| > I have a "GA" so will try it but want your input on this. Could
not
| > find anything on it in the famous Tube Lore book. Looks like the
"GA"
| > is more recent and the "GT" the oldest but they are listed as
| > incompatable in a substitution book. In it's use as a RF
amplifier, I
| > see no reason not to use either one. Voltages are ok which ever
one I
| > use. The "GA" has higher transconductance.
| >
| > Let me hear your thoughts.
| > 73, Dick KF4NS
| > St. Petersburg, FL 33714 USA
| > Keep the glow!
| >
| >
| >
| > ---
| > avast! Antivirus: Outbound message clean.
| > Virus Database (VPS): 0435-0, 08/24/2004
| > Tested on: 8/24/04 6:27:43 PM
| > avast! - copyright (c) 2000-2004 ALWIL Software.
| > http://www.avast.com
| >
| >
| >
| > _______________________________________________
| > List Administrator: Duane Fischer, W8DBF
| > ** For Assistance: dfischer at usol.com **
| > $$ See the vintage area on the HCI web site - http://www.w9wze.org
$$
| > Heathkit mailing list
| > Heathkit at mailman.qth.net
| > http://mailman.qth.net/mailman/listinfo/heathkit
| >
| > .
| >
|
|
|
| ---
| avast! Antivirus: Inbound message clean.
| Virus Database (VPS): 0435-0, 08/24/2004
| Tested on: 8/25/04 11:09:03 AM
| avast! - copyright (c) 2000-2004 ALWIL Software.
| http://www.avast.com
|
|
|



---
avast! Antivirus: Outbound message clean.
Virus Database (VPS): 0435-0, 08/24/2004
Tested on: 8/25/04 11:23:05 AM
avast! - copyright (c) 2000-2004 ALWIL Software.
http://www.avast.com