Teledyne Philbrick 4711 V/F Converter

Description

Listed here is a Teledyne Philbrick VF Converter.  I know nothing about it, other than the equipment it was salvaged from was untested.  You get the exact unit(s) seen in the pictures.
RETURNS:
Returns are accepted.
SHIPPING:
Lower 48 U.S. States ONLY!
NO shipping outside the Continental U.S.
NO shipping to APO Boxes, Hawaii or Alaska
Any sales that are outside the Lower 48 states are subject to cancellation.
I do my best to ship as soon as possible upon payment.  Shipping should be expected within 72 hours of purchase, provided payment is already made.  If the shipping and handling time on this listing is mentioned to be exceeding 3 business days, it can be assumed that I am currently away and that the S&H time will return to 3 days once I am back.