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Replacing single gang stereo balance potentiometers
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Return to top of page · Post #: 1 · Written at 1:12:45 PM on 8 December 2015.
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Location: Melbourne, VIC
Member since 24 February 2015 Member #: 1706 Postcount: 31 |
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This is something that I’ve never really thought about or really had to do before and now that I think about it I’m not quite sure exactly what to do here. I need to replace a single gang (L, GND, R) stereo balance pot (300ohm) on my HMV Caprice stereo radiogram that I’m restoring. Would I be correct in assuming that when the balance pot is in the central position (providing equal audio output to both speakers) that the potentiometer would be at 0 Ohms central position? I’m thinking that when panned all the way to the right there should be 300 ohms resistance on the on the left channel and 0 Ohms on the right channel and vice versa. |
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Return to top of page · Post #: 2 · Written at 6:03:24 AM on 11 December 2015.
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Location: Oradell, US
Member since 2 April 2010 Member #: 643 Postcount: 830 |
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Assuming the pot is "linear" taper, when it's at the center position there'd be 150 ohms from the ground to one end, and 150 ohms to the other end.
That's correct. If you have trouble finding a 300 ohm linear taper pot, but say you have a 250 ohm pot, you could add 22 ohm resistors between the end terminals and the circuits. Though you'd end up with a smaller range of balancing. |
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