Knob Change?

[Anonymous]

I have seen old Model T's with knobs reading 0-10 and I have seen some reading 1-10 (look like fender knobs).

When did Sunn change the knobs? Or has someone just put Fender knobs on there amp?

[Anonymous]

Early Sunn amp knobs just had an arrow on the knob and numerals on the faceplate (pre-1967). After that, the tube amps had knobs that were numbered 0-10 (these were made by Rogan). If you find a Sunn tube amp with knobs numbered 1-10, then it's very likely that the original knobs were lost or damaged and replaced by Fender knobs that are nearly identical except for the numerals.
Good Luck!
Ryan

[loudthud]

It's worthwhile to note that on Sunn knobs, the set screw is between the 0 and the 10. On the pointer knobs, the set screw is opposite the pointer. I found some Rogan knobs at a surplus electronics place that had the set screw at 6. Music Man amps used Rogan knobs that are identical to Sunn knobs. The Fender 1-10 knobs are have a slightly larger diameter skirt, about 1/16". I have an old Rogan Brothers catalog with a page describing the Sunn Knobs.