Chinese bench PSU MCP-SP-303E
It has 2 defective potentiometers 3 pin rotary linear 20mm shaft. However the values are 6 kohms and 7 kohms which do not seem to be standard values. I realise I can use a 10Kohm standard pot with resistor in parallel to get 6 and 7k but then they won't be truly linear. Does anyone know of a supplier for 6k and 7k pots?
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The pots are marked 6k and 7k and do measure this across the tracks but are erratic and go open circuit on wiper terminal when wipers moved, even after deoxit cleaning.
Steve Cooke tarafından