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paulsherwin · 10th Aug 2018, 3:58 pm

The knobs just pull off. If they are stuck, some Plus-Gas or WD40 may help. Can you ease the metal compression ring open with a small screwdriver?

I wouldn't change any caps initially, even the Mouldseals if they haven't disintegrated. Obviously Mouldseals and Plessey electrolytics are the first place to look if a fault is present, but these sets often fire up without problems once the pots and switch contacts have been cleaned.

These are a good first transistor set to work on. The construction is very open and forgiving, and it's easy to take voltage measurements and change components. The transistors are particularly easy to change, though the B uses the OC series so this shouldn't be necessary.

10th Aug 2018, 3:58 pm	#2
paulsherwin Moderator Join Date: Jun 2003 Location: Oxford, UK Posts: 27,943	Re: Bush TR82B The knobs just pull off. If they are stuck, some Plus-Gas or WD40 may help. Can you ease the metal compression ring open with a small screwdriver? I wouldn't change any caps initially, even the Mouldseals if they haven't disintegrated. Obviously Mouldseals and Plessey electrolytics are the first place to look if a fault is present, but these sets often fire up without problems once the pots and switch contacts have been cleaned. These are a good first transistor set to work on. The construction is very open and forgiving, and it's easy to take voltage measurements and change components. The transistors are particularly easy to change, though the B uses the OC series so this shouldn't be necessary.