The spindles each fit inside the bushings perfectly. In the end, all of the hardware came out looking nice. So I opted for a 4-40 thread and found some nice stainless screws. It turns out that this pitch is used almost exclusively in some obscure industry like fishing reels or something (I can't remember.) I simply couldn't get a tap. The thread pitch was an SAE I'd never seen before. I wanted to use the stock screws and so I had to determine their pitch in order to get the right tap. The opposite end of the spindles were the biggest pain in the rear. I held the spindles in a 5C fixture in a Bridgeport and manually drilled and countersank the string holes. I made more than I needed in case I need to replace one in the future. I tried to keep the shape as close as I could to the original Silvertone hardware Next, I wrote a program to rough out the spindles. had to be bored to a close tolerance to facilitate a nice fit for the spindles that would eventually turn inside of them. Next, I milled the hex flange on the end of each bushing.
The stock bushing on the left has the finer knurl. I used a coarser knurl than the stock bushing, and I had to make them oversize so that theye'd press fit into the oversized holes in the wooden headstock of the guitar. I used 6ALV4 titanium bar and wrote a simple program to make the bushings. I read somewhere the Gotoh makes tuning pegs that are the right size for this guitar, but I wanted it as original as possible.įor materials I decided on H13 tool steel for the spindles and titanium for the hexagonal spindle bushings. I liked the off-white plastic knobs so I decided to restore the unit instead of look for some suitable replacement. One rotation takes you up about an octave! Or so it seems. The tuning gears themselves weren't in such bad shape, though they're geared way too high for good tuning.
This was my first electric guitar, given to me by my father (which he got when he was 16), so I decided to fix it.
Most of the bushings were missing, and the bushing holes had been wallered oversize. Once upon a time, the headstock on my Silvertone was in disarray. RESTORING THE TUNING PEGS ON MY DANELECTRO SILVERTONE (CIRCA 1959-1960).
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