Neve 1272 Schematic May 2026

The 1272 schematic is based on a single-supply (+24V DC), Class-A, three-transistor amplifier using discrete NPN silicon transistors (typically BC184 or 2N3053). The signal path is transformer-balanced on both input and output.

The Neve 1272 schematic is a favorite among the DIY audio community because it is more straightforward than the 1073 (no EQ, fewer switches) but still delivers 95% of the tonal character. Neve 1272 Schematic

All stages run in single-ended Class-A mode. Bias is set by a stable voltage divider from +24V rail. The 1272 schematic is based on a single-supply

| Stage | Transistor (typical) | Role | Configuration | |-------|----------------------|------|----------------| | Q1 | BC184C | First voltage gain | Common-emitter | | Q2 | BC184C | Second voltage gain | Common-emitter | | Q3 | 2N3053 (or BC184C for low power) | Output driver | Emitter-follower | If you have a vintage 1272 that is

The 1272 shares DNA with the Neve 1073. Both use the famous BA283 amplifier card as their active gain stage. However, the 1073 includes a three-band EQ and a more complex preamp stage. The 1272 is simpler: it is essentially the output amplifier section of the 1073.

 Input XLR -> Input Transformer (LO1166 or Marinair) -> Gain Stage 1 (Q1) -> Gain Stage 2 (Q2) -> Output Stage (Q3) -> Output Transformer (LO2567) -> Output XLR
                                                           ^                                                         |
                                                           |________________Feedback Network_______________________|

If you have a vintage 1272 that is humming, distorting, or has low output, the schematic is your roadmap.