Request. Moving on from the Fourbanger, here’s a compact layout for the standard Rangemaster but with a voltage inverter so you can use the better quality PNP transistors but with a negative ground. Note the IC is rotated 180° to how we usually mount it, pin 1 bottom right.
To make this a little more versatile I’d be very tempted to lose the input and output caps (and shave off a column) and add a 4P3T rotary switch to swap input and output caps to offer a greater range of frequencies.
Maybe having:
Input caps
C1 – 5n
C2 – 22n
C3 – 47n
Output caps
C4 – 10n
C5 – 47n
C6 – 100n
or whatever suits your taste and equipment.
Oh and the collector/emitter swap cheat version for Travis, not sure how well this will work though!:o)
