Philco 66 - Sweet Music at Last!!
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Threads: 18
Joined: Oct 2008
City: Merrick, Long Island, NY
resistor 28 and 29 can be 75k or 70 K but may have drifted way say up oropend. Parts 27,30,31 could also be involved. Check voltage divider to confirm that there is B+ going to this stage. You did replace all the caps,right?
Agreed you have to get this stage working before anything else.
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RE: Philco 66 - Coil troubles? - by codefox1 - 05-27-2012, 02:04 PM
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The speaker table error?
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G 10-1/2" 65, 76, 87, 95
Push-Pull 45's
2766
0.7
550
3200
H 10-1/2" 77, 96
Push-Pull...morzh — 09:26 PM |
A Marconi model 86
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I have a Stromberg, one of the early ones, seems early 30s.
This is what I call a back breaker. None of the early Philc...morzh — 08:28 PM |
A Marconi model 86
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A backbreaker.....PaulPaul Philco322 — 08:12 PM |
A Marconi model 86
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>>What a behemoth!
A Juggernaut.morzh — 07:47 PM |
Philco 70 antenna lead
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I am not sure I understood about the coils and the mush. I looked an more than one coil in 20, 70, 90, 60, Zeniths and ...morzh — 07:46 PM |
A Marconi model 86
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:e_biggrin: What a behemoth! I hope the final result is as much a quality sounding example! Keep us posted on your pro...GarySP — 07:32 PM |
A Marconi model 86
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I should add that the double conversion may only be used on the shortwave bands, but I haven't looked at the schematic t...Arran — 07:27 PM |
Philco 70 antenna lead
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Yes, that wire will not pick up much interference as routed - the RF at that level won't be affected, and if you have st...radio1 — 07:26 PM |
Philco model 60
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I'm also a member of MARC. Did you attend the Vintage Electronics Expo in Waterford, MI last month? That's where I got...GarySP — 07:22 PM |
A Marconi model 86
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Dan
Double conversion is using two IF converters instead of one. This improves the image response.
morzh — 07:15 PM |
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