Dallas Rangemaster PNP negative ground

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)