sci.electronics.misc

Gaetan Mailloux wrote in message
news:f9ovre$aj4$1@ ...
> Hello
>
> I have a problem with my old tube Telequipment 43A oscilloscope, I use a
> sine wave generator who work perfect and have only .01 % distortion, but
> wen I feed my oscilloscope with any sine waves it's kind of oscillating
> alway's at the right side of the sine wave in the screen of the scope. It
> is doing that only with my scope, so it's not a problem with my sine wave
> generator
>
> Here a link of a photo of that, I was very close so it's bit out of focus
> photo and it's hard to catch the sine with my camera.
>
> /img292/8837/
>
> What can by the problem ?
>
> Thank
>
> Gaetan

Try replacing an ECF80 in the X-drive circuitry, V107, V108 .
The one advantage of valve stuff - you do realise that it is about 40 years
old ?



--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
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