Vintage Filko VRF-312HD Voltage Regulator NOS

Description

Vintage Filko VRF-312HD Voltage Regulator.
It comes in a vintage American Bosch box. I don't think this box it the correct box for this part but it's how I got them so that's how I am gonna sell them.
These are rated 40 amps, @ 6 volts with a positive ground.
Please do not order if you are unsure that its the proper part.
Feel free to contact me if you have any questions and I will do the best I can to answer them.
A quick note on shipping, I usually ship things very quickly after payment during the week, weekend orders usually ship Monday. I like shipping with the post office usually, they seem to be the fastest and cheapest overall. I sometimes recycle old boxes and packing materials so long as they are in usable condition. It saves you and me money. I always use tracking numbers. ALWAYS
I ONLY SHIP TO ADDRESSES PROVIDED BY EBAY.  If you send me a note to ship to another, I will still ship to the address provided by EBAY or I will void the sale. If your address shows as invalid by EBAY, I will void the sale. I do the best I can to ship items as quickly as possible, sometimes upgrading the shipping at my own expense. Poor information will cause delays all around. I also do this to prevent fraud. PLEASE MAKE SURE YOUR ADDRESS IS CORRECT BEFORE ORDERING AND CAN ACCEPT THE SHIPMENT!