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Studebaker M15A-20 "Mr. Potato Head"

Tuesday, April 23, 2019

Clock Mod/Improvement

I recently installed a car dash into my M15 with all the bells and whistles including a clock. I had rebuilt this clock myself by completely disassembling it, ultrasonically cleaning the parts, and reassembling it. I used the approved clock oil and had it on the bench running flawlessly for several months. I felt it was good to go as it kept time within 5 minutes a month. After installing within a month, kaput. I suspect this is due to the mainspring winding mechanism with those easily burned contacts.

So, what does one do? Taking the clock out for repair is such a hassle I figure I need to come up with a permanent solution to the contact issue. All the engineering solutions I came up with required significant drain current that one would worry about the battery running down. So I decided to use the contacts to my advantage. Instead of the contacts carrying the rewind solenoid coil current, I used the contacts to trigger a MOSFET that carries the the solenoid current. Generally, MOSFETs have a very low off current and one that I had in my stash is very low, low enough where I could not measure any current.

Pros:
1 Contacts last a long time.

Cons:
1. Not stock.
2. Increased complexity.




Here is the before and after circuit:


Modification is as follows:




















Sunday, December 9, 2018

Garden Soil

Picked up three yards of garden soil for our garden. Each yard weighed ~1,466 lbs so 1,466 * 3 = 4,400 lbs or 2.2 tons. Thought ahead and removed the fender figuring they would rub. Not bad for a 1.5 ton truck.




Monday, July 30, 2018

Fabulous 50's Car Show

Today I met up with three Studebaker folk at the Grants Pass Home Depot and we drove to the show together so we could be placed in the same area. I don't know the total count of cars but I know it was above 300.

Peter's "I like Ike" car, Keith's bulletnose, and MPH

Parked at the show

Peter got the leather coat award

Keith's vendor ribbon

Harvey's vendor ribbon

Peter accepting his award