[ARC5] Receiver Tube Substitution

[Rich Post]

Plug-compatible but 12SJ7 is sharp cutoff versus 12SK7 being remote
cutoff.  If in an AVC circuit, remote cutoff is needed.

Rich KB8TAD

On Thu, Dec 15, 2016 at 7:53 AM, Cliff Miller <cliff52 at gmail.com> wrote:

> A recent purchase of an R-23 / ARC-5 receiver contained a surprise.  The
> 12SK7 RF Amp was replaced with a 12SJ7 tube.  Does anyone have any
> experience with this substitution?  Would this have been done on purpose to
> improve the operation of the receiver?
>
> --
> Cliff Miller
> cliff52 at gmail.com
>
> ______________________________________________________________
> ARC5 mailing list
> Home: http://mailman.qth.net/mailman/listinfo/arc5
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:ARC5 at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/arc5/attachments/20161215/8a3b1854/attachment.html>