[Hammarlund] HQ-170 Receiver

[DW Holtman]

Hello,

I'm kind of new to Hammarlund Radios, I'm now in the process or 
restoring a HQ-170. I think this will be a very good receiver when I'm 
finished. I have replaced all of the paper caps and I'm going to replace 
the electrolytics tonight. The power supply has a large 8 HY coil in the 
power supply. It kind of surprised me, most radios do not spend the 
money for quality LC filtering (except Collins). All of the tube sockets 
are riveted and then soldered to ensure a good ground, very nice. One 
thing I found kind of strange is the electrolytic can is marked on the 
can with the usual square, triangle etc, but on the bottom of the can 
(the brown cardboard) there are no markings.  Had to ohm out the wires 
to figure out which lead was which cap.

There is some hum, which I think the replacement of the electrolytics 
will cure. At first it would not receive anything, I aligned the IF and 
it came to life. It is now receiving, but is extremely hard to tune in a 
SSB conversation. I hope another complete alignment after cap 
replacement will take care of this.

Does anyone make replacement. Telechron Clocks? Is seems like I have 
read in the past on the Internet that someone was making reproductions.

Best,
DW Holtman
WB7SSN
www.heavymetalradios.com/