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City: Elko,MN.
Caps are all in.
Everything unchanged.
Still need to get some juice down to those 42's.
Spot checked some resistors and did not find any open.
No cadohm resistor on this one.
Checked voltages on the 42's again and still have approx. 6o volts on pin 3 on both, and on pin 2, I found 50v on one and 4.5 on the other.
murf
Messages In This Thread
RE: 41-300x - by murf - 06-29-2014, 03:35 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 |
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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 |
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Here is an online transistor substitution site…
Ron462ron — 08:44 AM |
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