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Your cart is empty.This is one item of single gang, linear, carbon track potentiometer which has a gentle mechanical click when in the centre position. Typically this is used where positioning in the centre position has some importance, like the centre position in left-right balance pan controls or the 0dB point in frequency equalisers or tone controls. The turning part of the shaft length varies by track resistance. 1K, 10K, 50K, and 100K types have a turning part length of 14mm and are made by Bourns. The 2K, 5K, 20K, 250K, 500K and 1M versions have a turning shaft of 18mm and are of generic manufacture. The threaded part of the shaft is 6mm in all cases. The variation photographs show the correct lengths. These are new items and come with a nut and a washer for mounting on a front panel. The splined shaft is 6mm diameter. The mounting hole required is 7mm diameter. The connection pins will allow either PCB mounting or soldered wire connections. The "B" prefix before the track resistance value denotes a linear track taper. The maximum track power rating is 0.2W. Balance controls in stereo amplifiers generally use a two wafer stereo pot, but you will sometimes see single wafer mono pots like these used with a clever circuit based on op-amps or in transistor voltage amplifier stages where pot track ends connect between the two channels and the wiper of the pot is grounded. Such an arrangement exists in the Pye 1005 Achiphon record player. If you have a pot with a track label of B503, this is a B50K where 3 is the number of zeros after 50 in Ohms. A 502 would be 5K, a 472 would be 4K7 etc. Sometimes pots may also be labelled with the B as a suffix i.e. 50KB.
