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1934 model 84
#10

+1 on what the others said. This is an interesting radio, very similar to the 80Jr. These are gutless wonders using only an autodyne convertor (oscillator / mixer) and a regenerative grid leak detector. this is much more primitive than sets using a pentagrid oscillator mixer, an IF amp, diode detector, 1st audio and output tube. However, the performance of this thing is amazing, and they sold these really cheap.

Definitely replace the electrolytic filter caps. They may have been replaced years ago but the replacements may have failed.

The Philco library discusses the Bakelite capacitors and how to hollow and rebuild them.

If you never saw radios of this vintage, volume was not controlled at the input of the 1st AF Stage. Doing so did not come around till AVC. Volume was controlled by a 3 section pot. one section shunted the antenna connection or coil. The other section was used to adjust bias on the Osc Mixer tube.

"Do Justly, love Mercy and walk humbly with your God"- Micah 6:8
"Let us begin to do good"- St. Francis

Best Regards, 

MrFixr55


Messages In This Thread
1934 model 84 - by Bruce - 08-04-2024, 08:04 PM
RE: 1934 model 84 - by GarySP - 08-04-2024, 09:55 PM
RE: 1934 model 84 - by GarySP - 08-05-2024, 04:38 PM
RE: 1934 model 84 - by Radioroslyn - 08-06-2024, 07:48 PM
RE: 1934 model 84 - by Bruce - 08-07-2024, 07:37 AM
RE: 1934 model 84 - by GarySP - 08-07-2024, 12:03 PM
RE: 1934 model 84 - by Radioroslyn - 08-07-2024, 03:28 PM
RE: 1934 model 84 - by Bruce - 08-07-2024, 04:08 PM
RE: 1934 model 84 - by Bruce - 08-07-2024, 04:08 PM
RE: 1934 model 84 - by MrFixr55 - 08-08-2024, 09:54 PM
RE: 1934 model 84 - by Bruce - 08-09-2024, 08:21 AM
RE: 1934 model 84 - by RodB - 08-09-2024, 10:06 AM
RE: 1934 model 84 - by Bruce - 08-09-2024, 11:33 AM
RE: 1934 model 84 - by RodB - 08-09-2024, 01:02 PM
RE: 1934 model 84 - by MrFixr55 - 08-09-2024, 11:44 PM
RE: 1934 model 84 - by Bruce - 08-10-2024, 09:46 AM
RE: 1934 model 84 - by Radioroslyn - 08-10-2024, 02:17 PM



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