"hatbox" 78 rpm record player

[dieseljeep]

Originally Posted by dtvmcdonald

What are the tubes in that thing? What does the circuit look like?

Would it be easily possible to replace the rectifier with a
silicon diode and use the tube socket for a preamp tube?

The tubes look like a 35Y4 and a 50A5.


Best to strip the original circuit and move the 50A5 tube to the 35Y4 socket and wire the 50A5 socket for a 14B6 triode preamp tube. Then use a silicon rectifier and replace the voltage dropping resistor with a 420 ohm, 10 watt resistor.