I have an M-70 that I bought last year, it's been sitting patiently waiting to rise to the top of the priority list. It just got there.
I paid about 1/3 of the going price around here and Knew when I bought it that it had problems. Supposedly it has been sitting in an attic for 20 years and has problems "but not with the output transistors". OK. I have a bag of "yeahright" handy. But for the price it was worth the gamble. I think. Perhaps Hope.
General appearance is quite good, just 2 small scratches on the left upper face corner. Inside, the only thing that stands out is that in the right rear of the main pcb one cap and a zener are non original. Not too dusty, doesn't smell like nicotine, damp, cat piss or smoke.
The "Power C Board" up front has some DSBG and one small cap that's leaking but no signs of corrosion that I can see at this time. It has the Rifa cap(s) in the power supply that needs to be replaced.
Cheers,
James
edit 29-Feb-2020: I made a replacement parts list some time ago but failed to post it here, so I'm doing so now, for the use of Audiokarma members. It represents a considerable amount of work. While it is being provided to help other members I do not provide it to be copied and monetized.
I paid about 1/3 of the going price around here and Knew when I bought it that it had problems. Supposedly it has been sitting in an attic for 20 years and has problems "but not with the output transistors". OK. I have a bag of "yeahright" handy. But for the price it was worth the gamble. I think. Perhaps Hope.
General appearance is quite good, just 2 small scratches on the left upper face corner. Inside, the only thing that stands out is that in the right rear of the main pcb one cap and a zener are non original. Not too dusty, doesn't smell like nicotine, damp, cat piss or smoke.
The "Power C Board" up front has some DSBG and one small cap that's leaking but no signs of corrosion that I can see at this time. It has the Rifa cap(s) in the power supply that needs to be replaced.
Cheers,
James
edit 29-Feb-2020: I made a replacement parts list some time ago but failed to post it here, so I'm doing so now, for the use of Audiokarma members. It represents a considerable amount of work. While it is being provided to help other members I do not provide it to be copied and monetized.
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