Rangemaster Point to Point

K

kmduensing

New member
I got a oc43 with a hfe of 90 and low leakage so decided to try a point to point Rangemaster build with a rotary switch for input capacitors.
the positive ground got me kinda turned around last night, but I think it may be right. A little concerned that the capacitor on the power supply is wrong. Haven’t breadboarded yet since I have a tonebender going with adjustable negative feedback. Anyway here is what I got so far… IMG_2240.jpeg
 
The 47uF filtering/bypass needs to be between the positive and negative. You may want that between the 0V ref'd +Vbatt on the switched side and the negative of the bettery. Putting a cap between the pins of a battery permanently means the battery is leaking through the cap even when unplugged.

The OC43 is a PNP from googling. I see that you've connected battery +V via the jack to the shield to reference to 0V then battery -V to the bottom of the 10K then to the collector, so that looks correct (emitter to the most positive and collector to the most negative for PNP).
 
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