david winter
Classical music lover.
Hi,
I am trying to finish restoring a Sony PS-4300 turntable (fully recaped) which speeds start fluctuating after a few minutes.
The 2SC1173Y is the output transistor of the motor control circuit (Q110, TO-220, BCE) and tests with a gain of 88 (should be 120+). As I don't have any KSC-1173Y, I put a KSD526Y. But no changes.
There are two 2SC1760: one in the auto-return trigger and one in the voltage regulation, which is ok. What typical subs are used for this type ?
Thanks.
I am trying to finish restoring a Sony PS-4300 turntable (fully recaped) which speeds start fluctuating after a few minutes.
The 2SC1173Y is the output transistor of the motor control circuit (Q110, TO-220, BCE) and tests with a gain of 88 (should be 120+). As I don't have any KSC-1173Y, I put a KSD526Y. But no changes.
There are two 2SC1760: one in the auto-return trigger and one in the voltage regulation, which is ok. What typical subs are used for this type ?
Thanks.
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