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
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