[Hallicrafters] Best Rx?

[Glen Zook]

Only 2 that I know of.  The original SX-111 without the product detector and with 13 tubes including the rectifier and the SX-111 Mark I with the product detector and 14 tubes including the rectifier.  The manual for the Mark I has SX-111 Mark I on the cover.

Glen, K9STH

Website:  http://k9sth.com


--- On Sat, 11/27/10, WA1KBQ at aol.com <WA1KBQ at aol.com> wrote:

It's been years since I was more familiar with the SX-111 series  having operating one at the time but I seem to vaguely remember there  might have been three variants. Can anybody confirm this? Possibly two earlier  versions without the product detector and a later one with?