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Old 07-02-2018, 11:50 AM   #1
redmodelt
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Default Modern 3 prong flasher

Ok so my really good flasher gave up the ghost and replaced it with one of the modern ones sold by Snyder's. Now instead of going flash...flash...flash it goes flashflashflash. It's a standard 6 volt system and bulbs. While this is on both my Model T and 48 F2 (I have the same flashers right now on both and both are doing the same), do I need to install a resister on the power input or?

Thanks
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Old 07-02-2018, 12:40 PM   #2
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Default Re: Modern 3 prong flasher

You probably need a heavy duty flasher.
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Old 07-02-2018, 06:54 PM   #3
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Default Re: Modern 3 prong flasher

Did you check the blinker fluid?

I know we all heard it before but I had to do it
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Old 07-02-2018, 06:54 PM   #4
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Default Re: Modern 3 prong flasher

I assume you're talking about a 535. I'd recommend finding a new old unit on eBay or some such place. These new ones are pretty much junk.
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Old 07-02-2018, 07:04 PM   #5
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Default Re: Modern 3 prong flasher

I bought one on ebay that went flashflashflash. Ordered one from Snyder's and it behaves like it should. Luck of the draw, I guess. Pry open the aluminum cover with a pocket knife and try to adjust the spacing between the copper contacts to the L terminal. Might help.
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Old 07-02-2018, 07:50 PM   #6
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I pried one open and was surprised to find NO mechanical contacts, but to separate solid state circuits. One for positive ground, one for negative ground.
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Old 07-02-2018, 08:06 PM   #7
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Default Re: Modern 3 prong flasher

The 25.00 one from bratton's solved my hyper flash issue, I an 6 volts and all LEDS all around, headlights, tail lights and 3rd brake light.

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Old 07-03-2018, 10:34 AM   #8
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Where did you get the LED headlights and do you like them?
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Old 07-03-2018, 01:48 PM   #9
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http://www.dynamoregulatorconversion...boards-etc.php
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Old 07-04-2018, 12:13 PM   #10
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Default Re: Modern 3 prong flasher

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Originally Posted by redmodelt View Post
Ok so my really good flasher gave up the ghost and replaced it with one of the modern ones sold by Snyder's. Now instead of going flash...flash...flash it goes flashflashflash. It's a standard 6 volt system and bulbs. While this is on both my Model T and 48 F2 (I have the same flashers right now on both and both are doing the same), do I need to install a resister on the power input or?

Thanks
BV535 is the flasher for 6 volt pos grnd vehicles! Is the flasher from Snyders Pos or Neg ground? I think Amazon sells both types!
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Old 07-05-2018, 11:16 AM   #11
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Default Re: Modern 3 prong flasher

535 flashers are nonpolar, despite what know-nothing stuff sellers may claim. The one from Snyder's works fine on 6V positive ground. Should work on negative ground as well.
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Old 07-13-2018, 02:44 PM   #12
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535 flashers are nonpolar, despite what know-nothing stuff sellers may claim. The one from Snyder's works fine on 6V positive ground. Should work on negative ground as well.
Sadly, I thought the same thing as you, but in this modern world, there are now some solid state flashers showing up replacing the old vintage thermal flashers. (and they need to be wired to match how they work, which in a way makes them polarized in need.) I would venture Snyders is aware and has a thermal flasher replacement, that does not care.
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Old 07-14-2018, 09:06 AM   #13
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Default Re: Modern 3 prong flasher

I should add, the T is negative ground and the 48 positive ground. As both work the same, that would tell me that they do not care what ground is used.
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Old 07-14-2018, 09:39 AM   #14
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Sadly, I thought the same thing as you, but in this modern world, there are now some solid state flashers showing up replacing the old vintage thermal flashers. (and they need to be wired to match how they work, which in a way makes them polarized in need.) I would venture Snyders is aware and has a thermal flasher replacement, that does not care.
You're right. I was back in Tung-Sol world.

The newer ones have a transistor to switch the pilot lamp. Apparently Chinese labor is cheaper than an extra contact on the armature. I think these will work with the opposite polarity, except the pilot won't, and it will likely puff the transistor.
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Old 07-14-2018, 10:05 AM   #15
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You're right. I was back in Tung-Sol world.

The newer ones have a transistor to switch the pilot lamp. Apparently Chinese labor is cheaper than an extra contact on the armature. I think these will work with the opposite polarity, except the pilot won't, and it will likely puff the transistor.
For me personally, I still use hand signals! But I do little night driving! Tung sol, those are words I have not heard in a while!
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Old 07-15-2018, 10:34 AM   #16
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Default Re: Modern 3 prong flasher

My pilot light works fine with both negative and positive grounds and nether have gone poof!
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Old 07-15-2018, 11:58 AM   #17
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My pilot light works fine with both negative and positive grounds and nether have gone poof!
Are they Tung-Sol flashers?
The one from Bratton's looks to be a good replacement, but pricey...
I've seen only two 6-volt positive ground electronic flashers, but they both said "up to 1-1/2 seconds before first flash." Not for me.
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Old 07-15-2018, 12:12 PM   #18
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Default Re: Modern 3 prong flasher

The units installed are described above, from Snyder's.
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Old 07-15-2018, 12:40 PM   #19
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Default Re: Modern 3 prong flasher

Sorry, I understood you to say you replaced only one. I'd call Snyder's and let them know your new flashers are bad, they don't want to be known for selling junk. I'm sure they will replace them. Just be sure you have no blown bulbs or broken wires. (Just sayin' - I've had to eat crow more than once.)
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Old 07-15-2018, 01:32 PM   #20
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There is absolutely no way to make crow taste good. Nasty critters. I have a feeling thats where the term came from. [smiley face]
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Old 07-15-2018, 02:52 PM   #21
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Default Re: Modern 3 prong flasher

All's cool!
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Old 07-18-2018, 09:55 AM   #22
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Default Re: Modern 3 prong flasher

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Originally Posted by redmodelt View Post
Ok so my really good flasher gave up the ghost and replaced it with one of the modern ones sold by Snyder's. Now instead of going flash...flash...flash it goes flashflashflash. It's a standard 6 volt system and bulbs. While this is on both my Model T and 48 F2 (I have the same flashers right now on both and both are doing the same), do I need to install a resister on the power input or?

Thanks
Ok! We all have been posting on this thread trying to help! A 3 prong flasher wiring sketch is attached for a 12 volt negative ground system. Adjust it to fit your 6 volt conditions and make up a small test jig. Test the flasher off the car on a test jig! If it works, you have more work to do, If not Snyders are good folks, they will take care of you!
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Old 07-18-2018, 10:52 AM   #23
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Default Re: Modern 3 prong flasher

Ok. The drawing is how it is hooked up on both cars. I'll do some more exploring on the issue.

Thank you everyone.
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