I have what I think are original Rick 4001 tuners. The guy who sold it to me put carbon tuners on and these were in the bag. I sold the bass and wanted to know if they are legit. I don't see markers or anything stamped on them
According to Paul Boyer and I quote him from a TB posting of his... "It's hard to know exactly "when" tuners were changed on Ricks. Since most (or all) tuners are not Rick made, the factory has to hold a supply. Sometimes when inventory gets low, orders go out for more tuners, and sometimes different tuners are bought. When they get low, perhaps another different tuner is purchased. During the transition periods, tuners from different manufacturers may be going through the assembly process at any particular time. The closed-back Grovers seem to be the most common in the '70s and into the early '80s. Rickenbacker started getting Schaller tuners with "Rickenbacker" stamped (or in the casting mold) on the tuner's baseplate in 1985 and have been used (with a few exceptions such as the 4001C64) ever since." Not sure if that info is of any help to you but i'm sure the Ric experts will be in to help out soon.
Not sure it’s relevant, but here’s a pic of my ‘78. Note that the single slotted screw was present when I bought it new. Probably someone at Rick just grabbed from a pile of screws during assembly.
My 4001 tuners (1979) are unmarked and, I think, original. Yours need clearer pics, especially of the back. My example has a weird "groove" in the gear, perpendicular to the way the teeth are cut, which I've never seen on another tuning machine. I'm sure it's so the gear can be set closer to the worm gear. Mine look like other contemporary Ricks.
I've seen this before with a late 1970s Rickenbacker bass and assumed it was a quick fix for someone....
That’s cool. I’ve got the “grooves” too. Never noticed until now. I’ve only been staring at them for 41 years.
They were off a 1976. He said that he had neck dive and he put tuners from Carvin on it. These were with the bass when I got it