Re: LED turn signals
Posted by HH56 On 2015/1/14 13:59:34
So in looking at the picture the actual flasher is the bi-metal with the heat coil and the dash indicators run on a separate contact?
Here's a photo of the "working" side of the replacement flasher and one of the original TungSol as used on a 47. That one used a relay type arrangement with a heater and bimetal controlling the relay. Typical of most of the TungSols I've torn apart.
The replacement is a heater and bimetal strip arrangement controlling the regular bulbs with the transistor substituting for the separate contact that switched the dash light in older flashers. Didn't find any identifying marks at all on the transistor --- just the black plastic case.
Also throwing in an extraction I did some time back showing the turn signal circuit for most postwar Packards. 22nd series and earlier are different because the brake lights don't go thru the turn signal switch and indicator lights are wired differently. Color of tracers did change a tiny bit from year to year but overall the base wire colors are consistent. The dash bulbs changed from the single indicator used 49-52 to the duals from 53 on. I included both with the later ones in dashed lines.
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Here's a photo of the "working" side of the replacement flasher and one of the original TungSol as used on a 47. That one used a relay type arrangement with a heater and bimetal controlling the relay. Typical of most of the TungSols I've torn apart.
The replacement is a heater and bimetal strip arrangement controlling the regular bulbs with the transistor substituting for the separate contact that switched the dash light in older flashers. Didn't find any identifying marks at all on the transistor --- just the black plastic case.
Also throwing in an extraction I did some time back showing the turn signal circuit for most postwar Packards. 22nd series and earlier are different because the brake lights don't go thru the turn signal switch and indicator lights are wired differently. Color of tracers did change a tiny bit from year to year but overall the base wire colors are consistent. The dash bulbs changed from the single indicator used 49-52 to the duals from 53 on. I included both with the later ones in dashed lines.
Attach file:
(29.24 KB)
(36.50 KB)
(93.33 KB)
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