Electronics Forum > Other Electronics and repair

On / Off volume switch repair? poor old hallicrafter

(1/2) > >>

kinkydoints:
in my first stage of this attempt to repair a hallicrafters s120 , I found that this on/off volume switch was used to power up straight from line cord. no fuse . I decided to remove and clean contacts and wiper on the inside with some contact cleaner . upon doing this the on /off switch stopped working and let the shaft rotate too far around. then would not return to off ... no click off . opened the switch up to find that the finger inside that goes into the switch was worn bad enough to miss the slot or slip by the slot . I seen a technique to fix plastic with super glue and baking soda . ? was wondering if this just way too  much work ,and be better off trying to find a replacement  . any idea where to find a replacement with the shaft as long with internal switch . shaft looks to be 3"  to 3.25" long this is listed in the part list as a 2 meg ohm 30% 1/8 watt variable, volume control switch with internal switch. ya guess im stuck trying to fix that finger . got some small files to fine tune the repair, might take longer than i hoped to get this radio up and running.

kinkydoints:
well I have not tried this kind of repair before but after some fabrication and tuning , the switch works again on /off volume.  it might not be a permanent repair , but it's until I can find a replacement.

Was wondering on this s120 there is a standby /receive switch , used to keep the units tubes powered up and hot for instant on...if i used a potentiometer of the correct resistance . without a switch. I would like to use that standby switch to power on / off shouldn't be to hard to rework the wiring .

kinkydoints:
found that the stop was not stopping the shaft from rotating all the way through . reason for two places of repair

The Radio Shop:
Seen that a few times.

kinkydoints:
Doing a restoration is not as easy as I thought. have run into some setbacks but am still going forward. had a broken knob on one of the rotary switch's and did some searching for a repair option. found a youtube video
that addressed the problem . cloning vintage knobs Wesley Treat's channel had this video. 

 https://www.youtube.com/watch?v=aNBHtlhlHF4       10 min. video was very cool had some things to buy but the quality of the repair and the "original " look it gives right down to the small scratches was very impressive  for the do it yourself kinda person.

Navigation

[0] Message Index

[#] Next page