[ARC5] 6AC7 and 6AB7

[Ian Wilson]

The Harvey_Wells Bandmaster VFO uses a 6AG7. That plus a small
VR tube packed into a small wedge-shaped enclosure sits under the
main unit.

73, ian K3IMW

On Fri, Feb 8, 2013 at 2:37 PM, Geoff <geoffrey at jeremy.mv.com> wrote:

> I cant remember seeing a 6AG7 in a VFO. As a VFO buffer/crystal
> oscillator, yes.
>
> Carl
>
>
> ----- Original Message ----- From: "Mike Everette" <radiocompass at yahoo.com
> >
> To: "Ken Gordon" <kgordon2006 at frontier.com>; "Sandy" <ebjr37 at charter.net>;
> "Geoff" <geoffrey at jeremy.mv.com>
> Cc: "ARC-5 List" <arc5 at mailman.qth.net>
> Sent: Friday, February 08, 2013 7:33 AM
>
> Subject: Re: [ARC5] 6AC7 and 6AB7
>
>
> Not sure if I recall any articles about the 6AC7 in a VFO.  Are you
> possibly confusing it with the 6AG7?  That was a very popular oscillator
> tube and worked great in a VFO.  I built a couple with 6AG7s, so can
> testify to it.
>
> 73
>
> Mike
> W4DSE
>
> --- On Wed, 2/6/13, Geoff <geoffrey at jeremy.mv.com> wrote:
>
>  From: Geoff <geoffrey at jeremy.mv.com>
>> Subject: Re: [ARC5] 6AC7 and 6AB7
>> To: "Ken Gordon" <kgordon2006 at frontier.com>, "Sandy" <ebjr37 at charter.net>
>> Cc: "ARC-5 List" <arc5 at mailman.qth.net>
>> Date: Wednesday, February 6, 2013, 7:23 PM
>>
>>
>> > On 5 Feb 2013 at 20:40, Sandy wrote:
>> >
>> >> From what you are describing, it should be a very
>> excellent "VFO" oscillator
>> >> then? Never thought to try one like that!
>> >> 73,
>> >> Sandy W5TVW
>> >
>> > There were several articles in old QSTs, some of which
>> ended up in old ARRL Hancbooks,
>> > which detailed VFOs built using 6AC7s.
>> >
>> > Ken W7EKB
>>
>>
>> Even the 6SK7 was a semi popular VFO tube.
>>
>> Carl
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