[Hammarlund] 6SS7/6SG7 in HQ-129x

[RJ Mattson]

Thanks for all the responses.
There is a HQ-129x article on the AWA OTB by Jim Hanlon
http://www.antiquewireless.org/otb/comsrcvr0503.htm

Jim wrote "HQ-129X is definitely not the sensitivity champion on 20, 15 and 
10 meters when compared to its contemporary competitors like the National 
NC-173 with its 6SG7/6SA7 front end, the RME-45 with its Loktal 7B7/7J7, or 
the Hallicrafters SX-43 with its 6BA6/7F8."

My receiver was probably used into the sixties based on the orange drops, 
HC-10 attachment and Dymo labels on the IF cans.
The 6SG7 was then an upgrade to enhance sensitivity on the higher bands.
I've decided to return to the 6SS7 RF stage.
Does anyone know if there were changes I should look for because of the 
incorporated HC-10???. There was a tube socket extender with a coax cable 
which I removed and plugged the tube back into the original socket.

Thanks to all,
bob...w2ami
www.qrz.com/callsign/w2ami