Hey Guys! Need to know the value of an early to mid`70's Ampeg V4 head. This has the black rocker switches (not white) over both of the volume controls for each channel,treble and mid controls as well. Also has the metal on/off,standby and polarity switches. This is a non master volume amp. It's had a cap job done and fully serviced and has a new power cord. It has most of the original tubes including Magnavox labeled 7027A's and some others. not all the tubes are original. It's in great working order and the chassy looks great but the head box has a few small nicks. I'm the owner of this amp and I'm thinking about either posting it here or throwing it on ebay. What do you think it's worth? Thanks Guys!