 Diode from 1972, Finding a replacement |
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 Jul 1 2022, 07:32 PM
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#1
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can't remember  Group: Members Posts: 3,162 Joined: 3-June 11 From: Madison, WI Member No.: 13,152 Region Association: Upper MidWest 
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The diode between the alternator bootstrap circuit and the brake warning system has failed in my ‘72. To me, a diode is a tiny glassy thing you solder onto a PCB. I suspect though that an automotive diode might not best be ordered from Mouser. Can someone give me a path to replacement? How many Watts, etc? Thanks.
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| Spoke |
Jul 4 2022, 04:08 PM
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Jerry Group: Members Posts: 6,991 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None
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That diode connection looks aftermarket and not OEM. Was the left lead broken off when you opened up the insulation?
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Jul 4 2022, 05:10 PM
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#3
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can't remember Group: Members Posts: 3,162 Joined: 3-June 11 From: Madison, WI Member No.: 13,152 Region Association: Upper MidWest
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QUOTE(Spoke @ Jul 4 2022, 02:08 PM)  That diode connection looks aftermarket and not OEM. Was the left lead broken off when you opened up the insulation? Not sure if it broke before or after. The outer package was identical to the one posted. At any rate I get megohm plus in either direction . I have one rated at one watt that i might try. Without it everything works except the test brake light with key on and ebrake off. In theory all three lights in my triple gauge should light up, but the red brake warning light doesn’t. I use the ebrake all the time to keep the cables limber, so the red light is going to be blinking on start up anyway. Thanks Spoke and everyone else. |
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Posts in this topic
worn Diode from 1972 Jul 1 2022, 07:32 PM
Spoke I would imagine any simple silicon diode would wor... Jul 1 2022, 07:55 PM davep Do you have a diagram showing the location in the ... Jul 1 2022, 07:58 PM jim_hoyland Could be located behind the gauge cluster ? Jul 1 2022, 08:52 PM Spoke If I'm reading this correctly, @[url=http://w... Jul 1 2022, 09:36 PM
GregAmy The diode in question is in series with the GEN li... Jul 2 2022, 09:15 AM 914Sixer You need one of these? Jul 2 2022, 08:49 AM worn
You need one of these?
Bingo! The is what h... Jul 2 2022, 09:51 AM worn
You need one p
This is what is inside. I probabl... Jul 4 2022, 12:23 PM 914Sixer Shoot me a PM with your shipping info. Jul 2 2022, 11:17 AM jim_hoyland Did other years use the diode too ?
?? Jul 2 2022, 11:22 AM Chris914n6 It's used as a one-way circuit. My late 90s Ni... Jul 2 2022, 12:19 PM |
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