I have acquired a Heybrook TT2 in good shape, with a Rega RB300 mounted. However the motor is not getting any power. The motor is AC, electronically controlled for 2 speeds. We are on 60 cycle.
My Technician tells me that the 2 ICs need replacing. The 14-pin op-amp is easy, but the 8-pin M70681 is unobtanium. I presume that this is a timing chip, and can be substituted with another chip.
Does anybody know this PSU, or have any suggestions?
Circuit diagram?
Thanks,
Alec
My Technician tells me that the 2 ICs need replacing. The 14-pin op-amp is easy, but the 8-pin M70681 is unobtanium. I presume that this is a timing chip, and can be substituted with another chip.
Does anybody know this PSU, or have any suggestions?
Circuit diagram?
Thanks,
Alec
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