Repairing/understanding PNP in charging circuit
Arfa Daily wrote:
I have always preferred an 'old fashioned' 20k ohms per volt analogue
multimeter - in my case an AVO 8 MkIV. Digital meters can give very
misleading resistance readings across transistor junctions.
That's why even the chepest digital multimeters have a "diode test"
mode that measures the forward voltage at 1 to 4 mA (depending on
the multimeter, check the manual). Low-power-transistors should read
about 600mV B-E and B-C, and open circuit C-E.
Regards,
Michael Karcher
|