Can someone tell me where I can obtain a copy/printout/pdf of the manual for the Fotomatic 321A electronic flash. I was able to buy this second hand flash unit today without a manual and I have never used an electronic flash that has what looks like a sensor eye on the front of it with a switch with three positions red, blue and M for maual I presume.

Even if I could have the pages regarding the settings that would be sufficient , I think.

TIA

Ron