Vacuum Tube VFO
 

I would like to build a VFO for a CW transmitter using any type of
vacuum tube. Can someone help with a schematic? Thank you.
73
wb6iiq / dh1nwr

"Fred" wrote in message
om...
I would like to build a VFO for a CW transmitter using any type of
vacuum tube. Can someone help with a schematic? Thank you.
73
wb6iiq / dh1nwr

The library is your FRIEND. Go dig out old editions of the "ARRL Handbook".

"Fred" wrote in message
om...
I would like to build a VFO for a CW transmitter using any type of
vacuum tube. Can someone help with a schematic? Thank you.
73
wb6iiq / dh1nwr

The library is your FRIEND. Go dig out old editions of the "ARRL Handbook".

"Fred" wrote in message
om...
I would like to build a VFO for a CW transmitter using any type of
vacuum tube. Can someone help with a schematic? Thank you.
73
wb6iiq / dh1nwr

Fred -

You can also look at proven designs and schematics
Drift is an issue with tube based VFO - and regulated power supplies
are recommended.

Many schematics and manuals are available at BAMA
Such as the Johnson Viking VFO-122
http://bama.sbc.edu/

Here is another web site for schematics
http://www.geocities.com/CapeCanaver...1/hamfiles.htm

w9gb
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"Fred" wrote in message
om...
I would like to build a VFO for a CW transmitter using any type of
vacuum tube. Can someone help with a schematic? Thank you.
73
wb6iiq / dh1nwr

Fred -

You can also look at proven designs and schematics
Drift is an issue with tube based VFO - and regulated power supplies
are recommended.

Many schematics and manuals are available at BAMA
Such as the Johnson Viking VFO-122
http://bama.sbc.edu/

Here is another web site for schematics
http://www.geocities.com/CapeCanaver...1/hamfiles.htm

w9gb
--
Do not use Reply.
Reply only through ARRL forwarding service to W9GB

On Mon, 7 Jul 2003 20:37:24 -0500, "John R. Strohm"
wrote:

"Fred" wrote in message
. com...
I would like to build a VFO for a CW transmitter using any type of
vacuum tube. Can someone help with a schematic? Thank you.
73
wb6iiq / dh1nwr

The library is your FRIEND. Go dig out old editions of the "ARRL Handbook".


they are so easy to follow - from the time when 10kc/s drift per hour
wasn't really much ....

73 Jan-Martin
http://home.online.no/~la8ak/
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On Mon, 7 Jul 2003 20:37:24 -0500, "John R. Strohm"
wrote:

"Fred" wrote in message
. com...
I would like to build a VFO for a CW transmitter using any type of
vacuum tube. Can someone help with a schematic? Thank you.
73
wb6iiq / dh1nwr

The library is your FRIEND. Go dig out old editions of the "ARRL Handbook".


they are so easy to follow - from the time when 10kc/s drift per hour
wasn't really much ....

73 Jan-Martin
http://home.online.no/~la8ak/
--
remove ,xnd to reply (Spam precaution!)