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Voxophone · 18th May 2017, 4:06 pm

If you're going to replace the wax caps in stages with power-ups in between, it would be a good idea to prioritise the four or so caps connected across the heater chain. If any of these fails short-circuit it could stress or burn out a few valve filaments.

The grid coupling cap to the line output valve should also be prioritised for the sake of the LOPT.

This is the advice I was given when restoring my TV22.

Edit - Which model TV22 is yours by the way? The service information differs between the Mk 1 and Mk 2, and the latter also had a couple of subtypes. I think the Mk 2 may have been introduced sometime in 1953 so yours could possibly be either.

Liam

18th May 2017, 4:06 pm	#9
Voxophone Hexode Join Date: Oct 2015 Location: Sunderland, Tyne and Wear, UK. Posts: 340	Re: Bush TV 22 no line output voltage If you're going to replace the wax caps in stages with power-ups in between, it would be a good idea to prioritise the four or so caps connected across the heater chain. If any of these fails short-circuit it could stress or burn out a few valve filaments. The grid coupling cap to the line output valve should also be prioritised for the sake of the LOPT. This is the advice I was given when restoring my TV22. Edit - Which model TV22 is yours by the way? The service information differs between the Mk 1 and Mk 2, and the latter also had a couple of subtypes. I think the Mk 2 may have been introduced sometime in 1953 so yours could possibly be either. Liam Last edited by Voxophone; 18th May 2017 at 4:17 pm.