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Philco model 610
#16

Well, I spent the whole day going through the chassis again end to end. Here is what I did. I started with the speaker. The Output transformer ohmed out good as did the field coil. I checked the wiring to it, also good. I ohmed the part #57 came out at 263 ohms. Almost perfect. I checked all coils in the unit and they were all good and really close in the numbers. I traced all wiring and marked it on a new schematic. I checked my electrolytics and how I connected them on the terminal strip. All correct. I checked all resistors. I did find a mistake on part #46. I had 4.7k resistors in my drawer for 490K by mistake so I had installed a 4.7k. I reversed this to a 490k. I rechecked all the tubes. The 42 tube still showed low a little under 60, maybe 59. I did order a new one. I fixed the 750k resistor that was low and now it is ohming at 754k. I checked how I hooked up the transformer and ohmed it too just to make sure I didn't cross a wire. I said all this because when I powered back up I am having the same problem. It is acting like there is no load. I know my problem is on the front end at the 6a7 or before. I can touch the other grids and get noise in the speaker. If anybody has any more ideas it would help. By the way by changing out the resistors the voltage on pin 1 and 4 on the 80 tube went down to about 338vdc.


Messages In This Thread
Philco model 610 - by Radio Hound - 01-17-2017, 07:14 PM
RE: Philco model 610 - by rck46 - 01-17-2017, 07:50 PM
RE: Philco model 610 - by Radioroslyn - 01-17-2017, 10:07 PM
RE: Philco model 610 - by Radio Hound - 01-18-2017, 07:01 PM
RE: Philco model 610 - by morzh - 01-18-2017, 07:16 PM
RE: Philco model 610 - by Radio Hound - 01-19-2017, 07:09 AM
RE: Philco model 610 - by Radioroslyn - 01-18-2017, 07:21 PM
RE: Philco model 610 - by Radio Hound - 01-19-2017, 07:13 AM
RE: Philco model 610 - by Radioroslyn - 01-19-2017, 07:25 AM
RE: Philco model 610 - by Radio Hound - 01-19-2017, 11:12 AM
RE: Philco model 610 - by morzh - 01-19-2017, 11:52 AM
RE: Philco model 610 - by Radio Hound - 01-19-2017, 12:09 PM
RE: Philco model 610 - by morzh - 01-19-2017, 01:31 PM
RE: Philco model 610 - by Mondial - 01-19-2017, 05:53 PM
RE: Philco model 610 - by Radio Hound - 01-20-2017, 10:45 AM
RE: Philco model 610 - by Radio Hound - 01-23-2017, 03:54 PM
RE: Philco model 610 - by morzh - 01-23-2017, 03:59 PM
RE: Philco model 610 - by Radio Hound - 01-23-2017, 04:02 PM
RE: Philco model 610 - by morzh - 01-23-2017, 04:03 PM
RE: Philco model 610 - by Radio Hound - 01-23-2017, 04:18 PM
RE: Philco model 610 - by morzh - 01-23-2017, 04:19 PM
RE: Philco model 610 - by Radio Hound - 01-23-2017, 04:24 PM
RE: Philco model 610 - by morzh - 01-23-2017, 04:35 PM
RE: Philco model 610 - by Radio Hound - 02-07-2017, 12:16 PM
RE: Philco model 610 - by morzh - 02-07-2017, 03:15 PM
RE: Philco model 610 - by Radio Hound - 02-07-2017, 03:50 PM
RE: Philco model 610 - by Radio Hound - 02-07-2017, 03:59 PM
RE: Philco model 610 - by morzh - 02-07-2017, 05:17 PM
RE: Philco model 610 - by keith49vj3 - 02-08-2017, 07:54 PM
RE: Philco model 610 - by Radioroslyn - 02-08-2017, 08:40 PM
RE: Philco model 610 - by keith49vj3 - 02-08-2017, 08:01 PM
RE: Philco model 610 - by keith49vj3 - 02-09-2017, 06:48 AM
RE: Philco model 610 - by klondike98 - 02-09-2017, 10:07 AM
RE: Philco model 610 - by TV MAN - 02-13-2017, 12:08 PM
RE: Philco model 610 - by Radio Hound - 02-13-2017, 05:04 PM
RE: Philco model 610 - by keith49vj3 - 02-13-2017, 08:13 PM
RE: Philco model 610 - by Radio Hound - 02-16-2017, 04:24 PM
RE: Philco model 610 - by keith49vj3 - 02-13-2017, 08:33 PM
RE: Philco model 610 - by keith49vj3 - 02-14-2017, 08:56 PM
RE: Philco model 610 - by keith49vj3 - 02-15-2017, 06:46 AM
RE: Philco model 610 - by keith49vj3 - 02-16-2017, 08:22 PM
RE: Philco model 610 - by morzh - 02-16-2017, 10:56 PM
RE: Philco model 610 - by keith49vj3 - 02-17-2017, 07:13 AM
RE: Philco model 610 - by morzh - 02-17-2017, 08:58 AM
RE: Philco model 610 - by keith49vj3 - 02-19-2017, 07:23 AM
RE: Philco model 610 - by morzh - 02-19-2017, 11:08 AM
RE: Philco model 610 - by Radio Hound - 02-20-2017, 07:35 PM



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