Was working, now trying to burn up!
Posts: 51
Threads: 6
Joined: Sep 2014
City: Tacoma, WA
Quote:The two rectangular cans at the front of the picture are NOT capacitors, but most likely IF transformers. The round thing circled in the back looks like a filter cap. Before you get in much deeper, get some books on old radio, and find what various parts looked like in the 1930s and 40s. It will save you time and trouble in the end.
Yes, I intended to. I reserved 2 books through the library's online system last night. I just returned from picking those 2 up -- plus 1 more on the subject of antique radio restoration. plus 2 on reading schematics. So I have lots of reference material for now. Depending which books I like, I may order used copies online. They are nice general reference guides.
(This post was last modified: 09-13-2014, 06:21 PM by BenWA.)
Messages In This Thread
RE: Was working, now trying to burn up! - by BenWA - 09-13-2014, 06:20 PM
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Philco 40-155
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At last, got this working well. Impressed has really nice reception and tone. Had a bad connection on one of the capaci...rogerh — 07:44 PM |
Philco 91 Restore Code ??
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Or you could just square the current :lol:
As for the values, they are dependent on the 1 or 2-speaker system.
The...morzh — 05:46 PM |
Philco 91 Restore Code ??
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If you know the fc resistance you can use 120 ma nominal current through the resistor to get the voltage drop then calcu...RodB — 05:21 PM |
Philco 91 Restore Code ??
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Thanks Mike. I at least know why it is there if I don't fully understand it. I see where you talk about a cap and resist...dconant — 04:49 PM |
Philco 91 Restore Code ??
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Well, this cap you showed cannot possibly, due to the way it is constructed, be 1000pF (0.001).
It can be in tens of pF....morzh — 03:13 PM |
Philco 91 Restore Code ??
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I have two schematics for this radio one shows the 47 block (126-226) and the other (121-221) does not. My radio does no...dconant — 02:32 PM |
Philco 91 Restore Code ??
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No, that cannot be the 47.
The 47 is a regular backelite block cap. Look at the chassis picture, it is shown there. Rig...morzh — 01:45 PM |
Philco 91 Restore Code ??
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I have changed the title of this thread from Philco 91 Schematic.
I have gone through most of the cap replacements. I...dconant — 01:26 PM |
462ron
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Here is an online transistor substitution site…
Ron462ron — 08:44 AM |
1930s Stewart-Warner Tombstone Radio need help identifying model number
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One way to repair a broken wire on a coil is to take a copper strand out of some 18 gauge electrical cord, make a &quo...captainclock1988 — 12:55 AM |
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