MAXIM INTEGRATED PRODUCTS MAX5489EUD+ Non Volatile Digital Potentiometer, 100 kohm, Dual, SPI, Linear, ± 25%, 2.7 V Hoya A-82CRPLHRT It may also be used

It may also be used as a stereo extension cable

Fluid Heads

Triplet 61mm f/5

The Manfrotto 131DD Tripod Accessory Arm for Four Heads mounts onto the center column of tripods with 3/8" threads

The 3 Pole Female Cable Connector from Neutrik has a black metal housing and silver contacts

MAXIM INTEGRATED PRODUCTS MAX5489EUD+ Non Volatile Digital Potentiometer, 100 kohm, Dual, SPI, Linear, ± 25%, 2.7 V Hoya A-82CRPLHRT It may also be usedThe MAX5489EUD+ is a dual non volatile linear taper digital potentiometer in 14 pin TSSOP package. The device combines a dual 256 position potentiometers and the control is achieved through 3 wire SPI interface. It has an internal non volatile EEPROM to return the wipers to their previously stored positions upon power up. It minimizes board space and reduce interconnection complexity in many applications and are ideally suitable for low drift