AJH Synth
Lineup 6 ingested · audit-only catalog
Lineup transcribed from https://ajhsynth.com/ ↗, last checked 2026-05-14.
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FFB 914 Fixed Filter Bank
Fourteen-band fixed filter bank with inductor-based gyrator circuits, stereo left/right outputs, a left-right mix crossfader, a wet-dry crossfader, and a feedback control for resonance and self-oscillation.
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Gemini 2412 SVF
Dual multi-mode VCF featuring two independent vintage SEM-style 12dB state variable filters with a central mixing bus enabling serial, parallel, and inverted parallel modes; includes CV control of resonance, overdrive, and self-oscillation.
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MiniMod Discrete Cascaded VCA
A Eurorack VCA module with two fully discrete transistor VCA cores wired in series, modeled after the dual-VCA topology of the Moog Model D. Audio inputs and CV inputs control VCA 1; a Master CV input controls VCA 2, which is auto-normalized to full open when unpatched. An onboard jumper selects a high-gain overdrive mode for VCA 1.
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MiniMod Dual Contour
Two independent contour envelope generators in a single Eurorack module, closely replicating the Moog Model D contour generator circuit with exponential response, retrigger behavior, and switchable AD/ADSD modes per channel.
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MiniMod Transistor Ladder Filter
Faithful discrete transistor replica of the Moog Model D 24 dB/oct four-pole lowpass VCF, with three-channel input mixer, vactrol-controlled voltage-controlled resonance (Emphasis), 1/3 and 2/3 CV inputs emulating original keyboard switches, variable exponential CV input, and optional overdrive jumper.
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MiniMod VCO
A discrete-transistor voltage-controlled oscillator that faithfully recreates the rare early all-discrete RA Moog Model D oscillator, with four simultaneous waveform outputs (Sawtooth, Triangle, Square with PWM, and Sharktooth), switchable octave selection, exponential and linear CV modulation inputs, oscillator hard sync, and a Lo setting for sub-audio LFO use.