Vacuum Tube VFO

[Fred]

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

[John R. Strohm]

"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".

[John R. Strohm]

"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".

[G.Beat]

"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/CapeCanaveral/Hall/8701/hamfiles.htm

w9gb
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[G.Beat]

"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/CapeCanaveral/Hall/8701/hamfiles.htm

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

[J M Noeding]

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

>"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".
>
>
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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[J M Noeding]

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

>"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".
>
>
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!)