| Series | Category | # Parts | Status | Description |
|---|---|---|---|---|
TT Electronics/BI91TR | Potentiometers, Variable Resistors | 2 | 1 | |
TT Electronics/BI91VR | Trimmer Potentiometers | 3 | 1 | |
TT Electronics/BI91WR | Thumbwheel Potentiometers | 6 | 1 | |
TT Electronics/BI91XR | Trimmer Potentiometers | 1 | 1 | |
TT Electronics/BI93PR | Trimmer Potentiometers | 3 | 1 | |
TT Electronics/BIAR300 | Potentiometers, Variable Resistors | 1 | 1 | |
TT Electronics/BICR10 | Rotary Potentiometers, Rheostats | 1 | 1 | |
TT Electronics/BICR20 | Rotary Potentiometers, Rheostats | 1 | 1 | |
TT Electronics/BICR200 | Potentiometers, Variable Resistors | 1 | 1 | |
TT Electronics/BICR5 | Rotary Potentiometers, Rheostats | 1 | 1 | |