Voice of Music 570 record player

[William]

I finally got around to a rebuild on my VM-570 record player. I have gone through everything, replaced the caps and the resistor that had drifted. By the way, this unit has the least number of drifted resistors of any previous unit. Tubes checked, all good. Everything cleaned that could be cleaned and it actually plays quite well with no smoke, smell, no red plating, and I can put my hand on the PT after 2 hours of playing and it's just warm. My question, or problem is in the final voltage tests for the 6AU6 and 12AX7 tubes. They are off or turned around. They are listed below.

5Y3, pin 4, 327 volts, pin 6, 323 volts, both are A/C readings. Pins 2 and 8, 352 volts D/C.

6BQ5 tube 1, pin 7, 343 volts, pin 9, 348 volts, D/C readings. Pin 2, 2 volts, pin 3, 12.90 volts. Both D/C readings.
6BQ5 tube 2, pin 7, 344 volts, pin 9, 348 volts, D/C readings. Pin 2, 1 volt, pin 3, 12.90 volts. Both D/C readings.

6AU6, pin 1, 2, 6, zero volts. Pin 5, 77 volts, pin 7, 2 volts.

12AX7, pin 1, 213 volts, pin 6, 209 volts. Pin 3 and 8, 87 volts. Pin 2, 77 volts, pin 7, 69 volts.

Heater/filament voltage is 6.29 volts.

10uf @ 25 volts triangle symbol is 12.44 volts.
40uf @ 450 volts square symbol is 298 volts.
40uf @ 450 volts half circle symbol is 343 volts.

Varic is set at 117 volts, and the KAW is just under 60 volts with the label on the cabinet stating 75 watts. I have played it using my KLH tuner on two different occasions at two hours each time. It just plays and sounds great.

The voltages seem to be good for the rectifier and the output tubes but definitely off for the pre-amp tubes.

For schematics, I have an original from Gary and I have a Sam's. For some reason, VM does not provide voltage readings for each tube-like Sam's does, so I went by the Sam's schematic to compare to my readings. Here's where I'm thinking things are turned around, I think the Sam's has things misprinted. Please take a look and tell me what you all think.

Bill

[TC Chris]

I'd say typo on Sams but check R35 and 36.

Chris Campbell

[electra225]

I'm leaning toward a typo myself. You are probably okay.

[William]

With the suggestions given, I did double check several resistors including the ones mentioned by Chris. All were within tolerance, which in the case of this amp they were almost dead on with the rated value. It plays and sounds too good to have any issues, so typo is what I think too.

Bill