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Hammarlund HQ-170 HF RECEIVER
Produced: 1958 - 1962
This receiver has always performed well.
It was completely retubed in late 2012
Additional pictures are pending as I work on it.
THIS IS A WORK IN PROGRESS and is not done yet.
Check back from time-to-time.
CLICK HERE to email Woody
(not the 170a model)
Hammarlund HQ-170 (not the 170a model) PDF Schematic
There are High Voltages with enough punch to easily kill you
exposed all over inside these old rigs
both above and below the chassis.
The capacitors can hold a lethal charge
well after voltage is turned off and the rig is unplugged.
Make sure to bleed off capacitors with an insulated and grounded screw driver
before touching anything
even after the unit is physically unplugged from the AC outlet.
Remember the old ham radio and electronics practice...
Work on the radio one handed leaving one hand behind your back.
If you have both hands inside the unit and accidentally touch a lead or brush a capacitor
current could potentially pass through your body and stop your heart.
Always instruct others to turn off the circuit breaker
or unplug the radio
before touching you if you are bit else they might be electrocuted, too.
Since 21 November, 2012:
All personal materials, comments, pictures copyright 1997-2014 R Linwood (4L RANCH)