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Old 10th Sep 2021, 5:22 pm   #22
jamesinnewcastl
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Join Date: Jul 2009
Location: Newcastle upon Tyne, Tyne & Wear, UK.
Posts: 723
Default Re: Standard Beam Approach - Rebuild update

OK, made a start on the main receiver. Uninspiring piece of kit with not much on show, see pics.

Four of the valves were in good shape - probably not seen the light of day for eighty years. One has a loose top cap and one has a corroded top cap.

I've decided that I'll strip it all down to bare metal and rebuild. All resistors and caps replaced or restuffed with the exception of mica ones. I'll rebuild and just power up and go!

The metal caps covering the valves have a spring loaded (bakelite?) plunger inside, they all work perfectly. All these are squeezed down by the metal bridge device - I'm not looking forward to that!

There are three 'Westector' semiconductor diodes, not measured them yet but I won't replace them unless I have to!

Really do need to lose 'that smell'. Loads of work to do!


Cheers
James
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