29-11-2023, 09:43 PM
Many thanks Mark.
My test equipment - if it can be called that - is restricted to a multimeter, a capacitance meter and a (very basic) valve tester. My experience is likewise limited. In in the last 12 months, I've tackled an Hacker RV20, an RP37A and a couple of Bush DAC 90as - all of which were relatively easy to sort. But essentially, I'm an amateur who knows how to use a soldering iron and very little else.
Turning to your questions. I've tried connecting the speaker output to the gram input as suggested but it makes no difference. The magic eye moves but there is no sound. No hum either.
The HT supply is 278 volts. The series resistor is 120 ohms.
My test equipment - if it can be called that - is restricted to a multimeter, a capacitance meter and a (very basic) valve tester. My experience is likewise limited. In in the last 12 months, I've tackled an Hacker RV20, an RP37A and a couple of Bush DAC 90as - all of which were relatively easy to sort. But essentially, I'm an amateur who knows how to use a soldering iron and very little else.
Turning to your questions. I've tried connecting the speaker output to the gram input as suggested but it makes no difference. The magic eye moves but there is no sound. No hum either.
The HT supply is 278 volts. The series resistor is 120 ohms.
