The Ford Barn - Sun EB5 Transmitter

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- - Sun EB5 Transmitter (https://www.fordbarn.com/forum/showthread.php?t=213334)

AL in NY

01-23-2017 03:18 PM

Sun EB5 Transmitter

I acquired an early Sun EB5 transmitter for my Model A RC2 tachometer. I have wired up a small power supply circuit to replace the internal battery(batteries?). I am replacing all the capacitors inside the transmitter with new ones, but I found only one soldered in battery inside. This transmitter is for a 6 volt/4 cylinder application. Most of the diagrams I have found show two 1.35V mercury batteries. This one looks like it just had one but I have one way to know for sure. Does anyone know if this transmitter uses one or two 1.35V batteries??????

flatheadmurre

01-23-2017 03:35 PM

Re: Sun EB5 Transmitter

Think they used 1 or 2 batteries in combination with different values of capacitors to suit different numbers of cylinders.

Bob C

01-23-2017 04:08 PM

Re: Sun EB5 Transmitter

Found this on the HAMB.

skryla said: ↑

I have an EB-5a 6 volts, 4 cylinder. It doesn't seem to have ever had a second battery. Anyone seen one of these? Does this still take a 1.35v or 2.70v?

Yes the 4 and some 6 cylinder transmitters used a single 1.35v battery instead of two.

Automotive Stud, Jul 14, 2014

flatheadmurre

01-23-2017 04:17 PM

Re: Sun EB5 Transmitter

And the early ones used a single flashlight battery under a small lid.

AL in NY

01-24-2017 01:05 PM

Re: Sun EB5 Transmitter

Thanks Guys, now I can proceed with the rebuild of the transmitter.

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