Can anyone help with the wiring for a Crypton Tachometer (model BS42) please. I guess these are of 1960s vintage, they are made in England. I have 2 of these devices which seem identical except for a slight difference in the labelling on the terminals.
One has the following terminals:
"+", "-" and "LDC"
the other has:
"+", "-" and "CB"
There is a self contained bulb holder for illumination. There s also a link to be removed for use on 6 cylinder vehicles, I plan to use them on 6 cyl vehicles with traditional points ignition, 12v negative earth, with intent to convert to an Ignitor electronic ignition later.
Can anyone provide me with information on how to wire them please?
Thank you !DSC_2288.JPGDSC_2289.JPG[ATTACH=CONFIG]295763