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Model 650 Tone Control Question
#42

Here’s a pile of pics. Hopefully something pops up that I may have messed up.

The first ones are the side shots you requested.

I did a continuity check on the wires on the output transformer and that’s the shot of the speaker connection with the corresponding numbers 1, 2, 3 and 4. The speaker is not stamped anywhere but I could see but the output transformer is a Philco 7078.

The wires leading from the speaker socket are attached at the following spots, if this helps.

Pin 1 - one goes to Part #72, the wire wound resister and one goes to Part #67, the input transformer which read 292 ohms and 480 ohms

Pin 2 - one goes to the 8 mfd electrolytic and the other goes to Part #79, the filter choke

Pin 3 - a .006 cap is attached and the other wire goes to Pin 2 of the low voltage 42 output tube, red circled one.

Pin 4 - a .006 cap is attached ( both of these .006 caps, Parts 86 and 87, are grounded on bakelite block Part #80. The other wire goes to Pin 2 goes to the other 42 output tube.

The condition of the wiring appears good, there doesn’t seem to be any solder blobs. I took apart the threads holding the speaker wire near the transformer to look for any damage and couldn’t find anything. I’m enclosing all the shots I believe you wanted. If you need any further information or photos don’t hesitate to ask. 

I’m very appreciative of all your help!


Attached Files Image(s)
                                                   


Messages In This Thread
Model 650 Tone Control Question - by Hamilton - 06-27-2023, 09:45 AM
RE: Model 650 Tone Control Question - by morzh - 06-27-2023, 11:11 AM
RE: Model 650 Tone Control Question - by Hamilton - 06-27-2023, 04:49 PM
RE: Model 650 Tone Control Question - by morzh - 06-27-2023, 06:26 PM
RE: Model 650 Tone Control Question - by Hamilton - 06-29-2023, 07:03 AM
RE: Model 650 Tone Control Question - by RodB - 06-29-2023, 08:09 AM
RE: Model 650 Tone Control Question - by Chas - 06-29-2023, 09:26 AM
RE: Model 650 Tone Control Question - by morzh - 06-29-2023, 09:57 AM
RE: Model 650 Tone Control Question - by Hamilton - 06-29-2023, 10:46 AM
RE: Model 650 Tone Control Question - by RodB - 06-30-2023, 07:31 AM
RE: Model 650 Tone Control Question - by Hamilton - 06-30-2023, 10:45 AM
RE: Model 650 Tone Control Question - by Hamilton - 06-30-2023, 01:07 PM
RE: Model 650 Tone Control Question - by MrFixr55 - 06-30-2023, 04:22 PM
RE: Model 650 Tone Control Question - by Hamilton - 06-30-2023, 06:57 PM
RE: Model 650 Tone Control Question - by Hamilton - 06-30-2023, 07:13 PM
Hamilton - by Hamilton - 07-03-2023, 09:13 AM
RE: Model 650 Tone Control Question - by Hamilton - 07-03-2023, 11:10 AM
RE: Model 650 Tone Control Question - by MrFixr55 - 07-03-2023, 10:25 PM
RE: Model 650 Tone Control Question - by MrFixr55 - 07-03-2023, 11:40 PM
462ron - by 462ron - 07-04-2023, 07:56 AM
Hamilton - by Hamilton - 07-04-2023, 08:54 AM
462ron - by 462ron - 07-04-2023, 09:06 AM
RE: Model 650 Tone Control Question - by Hamilton - 07-04-2023, 02:13 PM
RE: Model 650 Tone Control Question - by MrFixr55 - 07-04-2023, 03:26 PM
RE: Model 650 Tone Control Question - by MrFixr55 - 07-04-2023, 03:38 PM
RE: Model 650 Tone Control Question - by Hamilton - 07-06-2023, 07:11 AM
RE: Model 650 Tone Control Question - by MrFixr55 - 07-06-2023, 10:40 AM
RE: Model 650 Tone Control Question - by Hamilton - 07-07-2023, 06:48 AM
RE: Model 650 Tone Control Question - by Hamilton - 07-07-2023, 01:59 PM
RE: Model 650 Tone Control Question - by RodB - 07-07-2023, 02:11 PM
RE: Model 650 Tone Control Question - by MrFixr55 - 07-07-2023, 08:23 PM
RE: Model 650 Tone Control Question - by Hamilton - 07-08-2023, 08:30 AM
RE: Model 650 Tone Control Question - by MrFixr55 - 07-08-2023, 11:07 AM
RE: Model 650 Tone Control Question - by morzh - 07-08-2023, 04:32 PM
RE: Model 650 Tone Control Question - by Hamilton - 07-09-2023, 05:15 AM
RE: Model 650 Tone Control Question - by MrFixr55 - 07-09-2023, 06:55 AM
RE: Model 650 Tone Control Question - by MrFixr55 - 07-10-2023, 03:39 PM
RE: Model 650 Tone Control Question - by MrFixr55 - 07-11-2023, 08:10 PM
RE: Model 650 Tone Control Question - by Hamilton - 07-12-2023, 06:50 AM
RE: Model 650 Tone Control Question - by Hamilton - 07-12-2023, 11:20 AM
RE: Model 650 Tone Control Question - by MrFixr55 - 07-12-2023, 04:58 PM
RE: Model 650 Tone Control Question - by Hamilton - 07-12-2023, 05:46 PM
RE: Model 650 Tone Control Question - by Hamilton - 07-12-2023, 05:49 PM
RE: Model 650 Tone Control Question - by MrFixr55 - 07-13-2023, 03:13 PM
RE: Model 650 Tone Control Question - by Arran - 07-13-2023, 03:39 PM
RE: Model 650 Tone Control Question - by MrFixr55 - 07-13-2023, 04:13 PM
RE: Model 650 Tone Control Question - by MrFixr55 - 07-14-2023, 05:05 AM
RE: Model 650 Tone Control Question - by MrFixr55 - 07-14-2023, 05:25 AM



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