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Philco 625B Assessment (UPDATE It works!)
#54

YES! It actually works! 
I powered it up for the first time today and it actually works pretty good! I have been fretting over the antenna transformer coil trying to get it hooked up properly. I also found a broken lead on the coil. Fixed that. I replaced all of the caps, many resistors, and some bad wiring. I removed all of the previous crappy repairs and strange modifications to the wiring, and brought everything back to the original schematic as designed.

I was nervous as could be, but I plugged it into my variac - dim bulb tester - isolation transformer and slowly added voltage. At about 100 volts the set came to life and then I heard static. I tuned in and found a local AM station and she played!

I do still have a good bit of work to finish. My volume pot has a burned spot on the track, so that will need t be replaced. I think my tubes are pretty weak and one the 78 tube has a loose base and cap. I have not done an alignment yet. So it is still a work in progress, but at least it didn't burn my shop to the ground... Icon_biggrin
   
   


Messages In This Thread
RE: Philco 125 Assessment - by morzh - 10-22-2023, 07:56 PM
RE: Philco 125 Assessment - by KI5OMM - 10-22-2023, 08:08 PM
RE: Philco 125 Assessment - by Ron Ramirez - 10-22-2023, 08:59 PM
RE: Philco 625B Assessment - by morzh - 10-22-2023, 10:39 PM
RE: Philco 625B Assessment - by Radioroslyn - 10-22-2023, 10:41 PM
RE: Philco 625B Assessment - by morzh - 10-22-2023, 10:44 PM
RE: Philco 625B Assessment - by Radioroslyn - 10-22-2023, 11:03 PM
RE: Philco 625B Assessment - by KI5OMM - 10-23-2023, 08:08 AM
RE: Philco 625B Assessment - by KI5OMM - 10-23-2023, 08:50 AM
RE: Philco 625B Assessment - by Radioroslyn - 10-23-2023, 09:45 AM
RE: Philco 625B Assessment - by Radioroslyn - 10-23-2023, 12:10 PM
RE: Philco 625B Assessment - by morzh - 10-23-2023, 04:59 PM
RE: Philco 625B Assessment - by KI5OMM - 10-23-2023, 08:04 PM
RE: Philco 625B Assessment - by RodB - 10-23-2023, 08:36 PM
RE: Philco 625B Assessment - by morzh - 10-23-2023, 09:20 PM
RE: Philco 625B Assessment - by KI5OMM - 10-24-2023, 11:28 AM
RE: Philco 625B Assessment - by Ron Ramirez - 10-24-2023, 11:51 AM
RE: Philco 625B Assessment - by KI5OMM - 10-24-2023, 03:02 PM
RE: Philco 625B Assessment - by morzh - 10-24-2023, 04:18 PM
RE: Philco 625B Assessment - by KI5OMM - 10-24-2023, 05:10 PM
RE: Philco 625B Assessment - by Radioroslyn - 10-24-2023, 05:24 PM
RE: Philco 625B Assessment - by Radioroslyn - 10-24-2023, 05:56 PM
RE: Philco 625B Assessment - by radiorich - 10-24-2023, 11:14 PM
RE: Philco 625B Assessment - by KI5OMM - 10-25-2023, 02:19 PM
RE: Philco 625B Assessment - by KI5OMM - 10-26-2023, 09:15 AM
RE: Philco 625B Assessment - by RodB - 10-26-2023, 10:05 AM
RE: Philco 625B Assessment - by Radioroslyn - 10-26-2023, 10:49 AM
RE: Philco 625B Assessment - by morzh - 10-26-2023, 11:38 AM
RE: Philco 625B Assessment - by KI5OMM - 10-27-2023, 09:43 AM
RE: Philco 625B Assessment - by Radioroslyn - 10-27-2023, 10:55 AM
RE: Philco 625B Assessment - by KI5OMM - 10-27-2023, 05:12 PM
RE: Philco 625B Assessment - by Chas - 10-27-2023, 10:24 PM
RE: Philco 625B Assessment - by radiorich - 10-28-2023, 12:04 AM
RE: Philco 625B Assessment - by KI5OMM - 10-28-2023, 07:54 PM
RE: Philco 625B Assessment - by Radioroslyn - 10-28-2023, 08:36 PM
RE: Philco 625B Assessment - by KI5OMM - 10-29-2023, 03:23 PM
RE: Philco 625B Assessment - by Ron Ramirez - 10-29-2023, 03:29 PM
RE: Philco 625B Assessment - by KI5OMM - 10-29-2023, 05:12 PM
RE: Philco 625B Assessment - by Ron Ramirez - 10-29-2023, 08:03 PM
RE: Philco 625B Assessment - by David - 10-30-2023, 12:23 PM
RE: Philco 625B Assessment - by KI5OMM - 10-30-2023, 08:48 PM
RE: Philco 625B Assessment - by radiorich - 10-31-2023, 10:03 AM
RE: Philco 625B Assessment - by KI5OMM - 10-31-2023, 11:51 AM
RE: Philco 625B Assessment - by David - 10-31-2023, 02:08 PM
RE: Philco 625B Assessment - by KI5OMM - 10-31-2023, 03:21 PM
RE: Philco 625B Assessment - by Chas - 10-31-2023, 05:19 PM
RE: Philco 625B Assessment - by radiorich - 11-01-2023, 12:38 AM
RE: Philco 625B Assessment - by radiorich - 11-01-2023, 12:41 AM
RE: Philco 625B Assessment - by KI5OMM - 11-01-2023, 07:28 AM
RE: Philco 625B Assessment - by KI5OMM - 11-01-2023, 09:58 AM
RE: Philco 625B Assessment - by morzh - 11-01-2023, 01:19 PM
RE: Philco 625B Assessment - by KI5OMM - 11-01-2023, 01:44 PM
RE: Philco 625B Assessment - by KI5OMM - 11-07-2023, 08:51 PM



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