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Old 24th Oct 2020, 5:43 am   #58
Catkins
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Join Date: Feb 2015
Location: Chepstow, Monmouthshire, UK.
Posts: 234
Default Re: Restoration of a 1937 first generation pre-war television (HMV 900)

To continue the restoration...

I'll try and get the pre-switch on work out of the way as soon as possible. What remains is the sync/trf chassis, the sound/radio chassis and the loudspeaker. After this post most of the work was just restuffing electrolytics/waxy-capacitors and so it should be done fairly quickly.

Photos 1 & 2 show the top and bottom of the trf/sync chassis. As should be seen, it is in good condition, the rust areas on the top chassis is only surface rust. The exception is the bottom most panel (on the left of photo 2), which is pretty filthy, and has areas of deep penetration of rust. Again this follows the pattern anything towards floor level is more heavily corroded.

I removed the panel (see Photo 3), and treated it, and cleaned the electronics.

Photos 4 & 5 are the result. The electrolytic has been restuffed.
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