Rogan knob sets for Buchla modules – Alpha and RB series as used on older original Buchla 200 series modules and on Eurorack modules by Verbos Electronics.
Shaft diameter is 6.35mm – fits perfectly on the Alpha 9mm pots and Alpha 16mm pots. The overall diameters can be found in the product description of each knob.
Hex keys to fasten the knobs can be added for all sizes.
Variation A B C D Small unskirted .51 inch
12.95 mm.48 inch
12.19 mm.40 inch
10.16 mm.045 inch
1.14 mm
Variation A B C D E Small skirted .90 inch
22.86 mm.66 inch
16.76 mm.51 inch
12.95 mm.18 inch
4.57 mm.31 inch
7.87 mm Medium skirted 1.15 inch
29.21 mm.77 inch
19.56 mm.71 inch
18.03 mm.20 inch
5.08 mm.48 inch
12.19 mm Big skirted 1.52 inch
38.61 mm.89 inch
22.61 mm.92 inch
23.37 mm.25 inch
6.35 mm.66 inch
16.76 mm