Heath RF signal generator

[Garey Barrell]

Dick -

Sounds like perhaps an SG-6 or SG-7.   The model number should be on the front
panel, just under the lowest arc of the calibration scales.  It is in VERY tiny
"mice type" and is often overlooked.

Anyway, for either of these the RF tube is also a 6C4 (7 pin).  If it's a little
later (SG-8) it uses a 12AU7 (9 pin).  I probably have a schematic for either
here somewhere if you haven't found one yet.

73, Garey - K4OAH
Atlanta

rhc wrote:

> I have a Heath Kit RF signal generator I am trying to restore.
>
> There is no model number on the unit.  The panel and knobs remind of the
> early model Heath Kit test equipment.  All connections are via 1/4 inch
> phone jacks.   The rf tube which fits a seven pin miniature tube socket is
> missing.  The audio oscillator has a 6C4 tube in its location and audio
> signal is observed on a oscilloscope.
>
> Does any one know what type of tube the RF oscillator should use or have a
> schematic?
>
>
> Thanks.
>
> Dick Cook
> W9NAH
> http://www.quiknet.com/~rhc
>

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