Philco 38-690 electronics restoration.
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Well, that is what I think. It is merely a paper cap. What also makes me think it is a non-electrolytic, is that it was fully dry upon extraction BUT when measured before it did show about 5uF (old paper caps tend to increase in value) so my thought is, yes, it is a metal-cased paper cap. Which, yes, can be replaced by a NP electrolytic, or (choice that sounds better to me) by a polyester cap.
PS> Someone on the Ukrainian forum suggested using a reloading press for gun cartridges to roll the edges. Could possibly work if the diameter fits.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
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RE: Philco 38-690 electronics restoration. - by morzh - 05-08-2017, 09:58 AM
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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 |
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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 |
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A backbreaker.....PaulPaul Philco322 — 08:12 PM |
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>>What a behemoth!
A Juggernaut.morzh — 07:47 PM |
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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 |
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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 |
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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 |
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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 |
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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 |
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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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