Akashic Guitar effects circuit lookup
BOOST

Enclosure not stated · 1 knob

Revolution Deux

Dallas Rangemaster

Based on the Dallas Arbiter Rangemaster· 36 other boards clone it

Category
Boost
Controls
Boost
Price
see vendor
Read the post at Revolution Deux Schematic image

From the vendor

The 1960s Dallas Rangemaster treble booster: one germanium PNP transistor (OC44 or OC71) in common emitter with a small input cap, built to push a tube amp into saturation. Shown as the first of the vintage boosters the post surveys.

Schematic

The schematic is in the post. Open it at Revolution Deux. No KiCad fragment has been drawn for this circuit yet.

Parts list 9 rows

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RefValueNormalizedTypeNotes
Resistors 3
R1470K470kread from the schematic by eye
R268K68kread from the schematic by eye
R33.9K3.9kread from the schematic by eye
Capacitors 4
C147u47usupply filter, electrolytic; read from the schematic by eye
C25n5ninput (0.005uF); read from the schematic by eye
C347u47uemitter bypass, electrolytic; read from the schematic by eye
C410n10noutput; read from the schematic by eye
Transistors 1
Q1OC44OC44germanium PNP; or OC71; read from the schematic by eye
Potentiometers 1
BoostA10KA10kPotentiometerread from the schematic by eye

Other boards based on the Dallas Arbiter Rangemaster