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Old 1st Oct 2020, 12:12 am   #60
AdrianH
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Join Date: Mar 2020
Location: Blackburn with Darwen, Lancashire, UK.
Posts: 1,573
Default Re: My first foray into Old model TV repairs.

I have changed the wax's with to be honest little change that was noticeable. But they would have been changed at some point anyway, there was no way I was leaving them in.
There is still some frame linearity issues with expanded lines at the top of the screen and some hum bars on the picture, so the last 4 electrolitics will be changed, these being 3 x 50uF at 12 Volt and a 4 uF at 150 Volt. Two in the frame circuit, one in audio circuit, and one video interference limiter.

Once I have done these caps I will leave the chassis for a while, will need to order a 100 and 200uF HV caps in to re-stuff the main capacitor that has failed but considering it is 66 years old to be expected. Need to read up on the Band 1 tuner as it gets progressively deaf going from channel 1 to 5 and not sure if this is tracking or valves.

In a few days I will start on the cabinet and see what I can do with that.

Adrian

Last quick comment the camera is compensating the exposure, it is not as bright as in the pictures.
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