Musical Fidelity A1 overhaul

goonybird

New Member
Just acquired a Musical Fidelity A1 (always fancied one to play with)
Fired (or should that be Fried?) up and it is working but suffers the common noisy volume pot.
Read Hennesy's page which is very helpful.
Will recap and managed to find Rubycon caps the same size/rating for the smoothing caps.
Has the Single piece lid and side vents. Board is marked "David II" which could indicate a mark 3.
Confirmation would be helpful whether its mark 2 or mark 3.

Then what to do with that Alps pot.
So I am going to try a 23-step stepped attenuator in the hope it might help solve the noisy pot issue from the DC voltage in the pre-amp. If not I will put an Alps back in.
 
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