Pulsar Modular R52 Baxandall v1.0.3 [WiN]

Team R2R | 16 September 2026 | 26.3 MB
The 1952 circuit, as Peter Baxandall published it. In October 1952, Wireless World printed a two-knob tone control with the EQ network inside a valve amplifier's feedback loop. The industry kept the shape and redrew everything else. R52 is the circuit itself: the SP61 pentode in the loop, the published component values, and the conditions Baxandall specified around it, source impedance and the amplifier at the far end, now under your fingers.
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