Vintage Sun EB-4A 24 Volt 4 cylinder Tachometer Transmitter I realize the voltage and number of cylinders is not correct for many cars on the HAMB, but many of these transmitters get updated, and if so, the voltage and cylinder compatibility can easily be changed as well. This unit appears to be complete and in excellent original condition. The case is in very nice condition. Does not include original battery. Made in USA. SOLD. Thanks I gladly accept your choice of PAYPAL, cash or check; I like paypal. Price includes mailing within CONUS. In support of my H.A.M.B. and GJ brothers and sisters serving our country, I am pleased to ship to APO/FPO addresses.