02-14-2017, 09:56 PM
Radiohound, I'm not very good at troubleshooting but these are the resistance readings I get for all of the tubes on my 610. These were all measured to chassis ground. If I made a mistake someone will probably let me know. The radio does play well so that's a good sign. I don't think Philco published tube pin resistance readings for this radio.
Keith
80 tube
Pin1 85K
Pin2 393 ohms
Pin3 402 ohms
Pin4 85K
6A7 tube
Pin1 0 ohms
Pin2 86K
Pin3 51K
Pin4 108K
Pin5 51K
Pin6 320 ohms
Pin7 0
78 Tube
Pin1 0 ohms
Pin2 88K
Pin3 51K
Pin4 4 ohms
Pin5 392 ohms
Pin6 0 ohms
75 tube
Pin1 0 ohms
Pin2 287K
Pin3 467 ohms
Pin4 467 Ohms
Pin5 0 ohms
Pin6 0 ohms
42 tube
Pin1 0 ohms
Pin2 87K
Pin3 87K
Pin4 517K
Pin5 0 ohms
Pin6 0 ohms
Keith
80 tube
Pin1 85K
Pin2 393 ohms
Pin3 402 ohms
Pin4 85K
6A7 tube
Pin1 0 ohms
Pin2 86K
Pin3 51K
Pin4 108K
Pin5 51K
Pin6 320 ohms
Pin7 0
78 Tube
Pin1 0 ohms
Pin2 88K
Pin3 51K
Pin4 4 ohms
Pin5 392 ohms
Pin6 0 ohms
75 tube
Pin1 0 ohms
Pin2 287K
Pin3 467 ohms
Pin4 467 Ohms
Pin5 0 ohms
Pin6 0 ohms
42 tube
Pin1 0 ohms
Pin2 87K
Pin3 87K
Pin4 517K
Pin5 0 ohms
Pin6 0 ohms