Julian Mcdermott Multi-Pulse Vehicle Flasher

John ED Renstrom

PCS Member - Elected Director 2019-2022
Super Site Supporter
A clicky clack. Just the thing if you want lights to flash in a pattern instead of random
 

Kurt Arends

PCS Elected Director 2021-2024
Super Site Supporter
I have one of these, but mine is missing the instructions. Yours has to be very early '60s or older, as it has a pre-zip code label.Flasher.jpg
 
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John ED Renstrom

PCS Member - Elected Director 2019-2022
Super Site Supporter
now to figure out the pattern I have 6 lights to flash. thinking hi low will be best with the number of contacts we have.
 

Paul Steinberg

Administrator
Staff member
Super Site Supporter
It is now more than a year later, and you have yet to acknowledge if the flasher works for your 6 lights. I have a lot of patience, but at my age, I am running out of years to wait for the results... :wwpics:

I hooked mine up yesterday, and the flash pattern was quite fast for my 6 bulbs, and that is why I asked about yours. I have gone down a different road, using a Dietz headlamp flasher with a slower flash pattern. I am in the final stretch of getting all the electrical work done, and all that is left it to install the Federal Model Y siren. Off with the WLR, and on with the Y or would it be a YR, since it has a rear flashing light. Have no idea where my old Federal catalog is located, so hopefully someone on these forums will have the information.
 

John ED Renstrom

PCS Member - Elected Director 2019-2022
Super Site Supporter
Yes it is a little faster then i wanted . Might try to spread the points out more. I have posted a video but bet it was only on the former drop.shots site.
 

Dave McGowan

PCS Member
On my Lifeliner I found the wigwag flasher for the tunnel lights mounted on the firewall. It's not was I was expecting when I checked the polarity. There are three wires on the flasher and 2 of them alternate a negative polarity. I was expecting to see positive for the load but they are negative. Checked with my test light and confirmed it. Now back to the tunnel lights, the load is positive because the negative is grounded to the car.

What am I missing here? My intent is to add two bumper-mounted Unity lights and have them wigwag from this flasher.
 

John ED Renstrom

PCS Member - Elected Director 2019-2022
Super Site Supporter
One post is power in the other two posts are power out. It not you have a brake down in side. Take the fover off and see if a insulator is damaged.
 

Paul Steinberg

Administrator
Staff member
Super Site Supporter
Dave...

You might have a defective flasher. The original flashers were Tung Sol units. I believe that the 617 is the 12 volt version of this flasher. If you need one, let me know, and I will start the search. Tung Sol 617 flasher.jpg
 

Paul Steinberg

Administrator
Staff member
Super Site Supporter
Dave... and others...
Knowing how difficult it is to find a flasher that was originally patented in 1939, and revised in 1945, and probably hasn't been in production since the 1960's, I started researching the WWW for an answer. I found it in an unlikely place, the Comanche Aircraft News Letter. It details how they work, what goes wrong with them, how to repair them, and finally, a solution for replacing the defective and obsolete parts, along with where to purchase the part. So as not to infringe on the intellectual property rights of others, I am linking to the publication. You will find this information on pages 38 & 39. I suggest that you save this information to your computer, since you never know when it will no longer be available.

 
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