Neve 1272 Schematic [hot] [ 2027 ]

An integral part of the second gain stage, where the DC power is supplied to the output transistors through its primary winding. BA283 Pinout & Wiring Guide

Tie a resistor in series with an 80uF+ capacitor to Pin J to increase gain. Output to Transformer Connects to Pin 1 of the LO1166 output transformer. A, J, V B- (Ground) Common power supply return and audio ground. Technical Specifications Neve 1272 Schematic

Feature | Neve 1073 | Neve 1272 --------|-----------|----------- | Full mic preamp with EQ | Line amplifier for summing Gain Stages | Three BA283/AV cards | Two BA283 cards (AV and AM) Transformers | 10468, LO1166 | 10468, LO1166 EQ Section | Yes, 3-band | No Power Supply | ±24V | ±24V Overall Gain | High (70dB+) | Lower (~36dB in summing mode) An integral part of the second gain stage,

At the heart of the Neve 1272 is a small, removable amplifier card known as the (or its earlier version, the BA183 ). These "B" series (or "B" and "A") cards are what give the 1272 its distinctive sound. The BA283 houses two transistor gain stages, designated " NV " and " AM ", which together deliver the module's output. These cards are connected to the rest of the circuitry via an edge connector with a series of pins for audio input/output, power, and gain control. A, J, V B- (Ground) Common power supply

At its heart, the 1272 schematic is built around two primary components that defined the Neve sound of the early 1970s: the BA283 output stage and the St. Ives (now Carnhill) transformers. The classic 1272 circuit typically consists of:

While modern producers primarily use 1272s as preamps, they were originally designed for line-level tasks.