[Hallicrafters] Re: SX111 mk1

[Mark Shaum]

As Hallicrafters was oft to do, there are always exceptions.  I have a
SX-111 mk1a (by the chassis stamp) that does not have the product
detector.  The product detector tube when added was located in the
center rear of the chassis where the power supply filter can is located
on the diode-only detector models, as I recall.

Actually my 111 does a fairly clean job of demodulating SSB with only
minor RF gain control riding necessary on the extra-strong sigs.  Must
have pretty high BFO injection.

73! - Mark K9TR
www.qth.net/k9tr

----- Original Message -----
From: "Glen Zook" <gzook at yahoo.com>
Subject: Re: [Hallicrafters] SX-111

> The SX-111 did not have a product detector and the
> SX-111 Mark I had a product detector (and one more
> tube for that purpose).