The Ford Barn

rbone · 04-07-2020, 11:23 PM

I just had Skip rebuild several of my old coils - one for my '34 motor and 2 for my 59ab. I talked to him today about external resistors and decided to look around to see what is available these days. Before I buy another of the ballast style, I noticed a thread on an unrelated forum about Buck Power Converter Step Downs and saw that they have several choices in output voltage, including 3.7VDC. Skip advised me to keep the voltage going to the coil between 3.5 and 4 volts - irrespective of the input voltage (12 or 6). You can buy several different types on amazon ranging in price from about $5 to about $20+.

So, my question is: has anyone used one of these types of voltage reducers and if so, would you recommend it?

My car is a '34 and it is a driver. 59ab motor, 12V, positive ground. I have the 21 stud '34 motor on a stand.

Thanks all,
Ron

04-07-2020, 11:23 PM	#1
rbone Member Join Date: Mar 2016 Location: Frisco, TX Posts: 95	Voltage Reduction/Resistor ? I just had Skip rebuild several of my old coils - one for my '34 motor and 2 for my 59ab. I talked to him today about external resistors and decided to look around to see what is available these days. Before I buy another of the ballast style, I noticed a thread on an unrelated forum about Buck Power Converter Step Downs and saw that they have several choices in output voltage, including 3.7VDC. Skip advised me to keep the voltage going to the coil between 3.5 and 4 volts - irrespective of the input voltage (12 or 6). You can buy several different types on amazon ranging in price from about $5 to about $20+. So, my question is: has anyone used one of these types of voltage reducers and if so, would you recommend it? My car is a '34 and it is a driver. 59ab motor, 12V, positive ground. I have the 21 stud '34 motor on a stand. Thanks all, Ron