Skip to product information
1 of 4

A40 Class A Audio Power Amplifier Boards (pair)

A40 Class A Audio Power Amplifier Boards (pair)

Regular price $14.97 USD
Regular price Sale price $14.97 USD
Sale Sold out
Shipping calculated at checkout.
  • Class A audio power amplifier.
  • Designed by Nelson Pass and enjoys steady following despite being around for 40 years.
  • 40 Watts per channel.
  • Low part count, all through hole, easy to assemble.
  • One board per channel; two boards are required for a stereo amplifier.
  • The board closely follows the published design, plus it allows using the current source JFET (Q11 on the schematic) with any pinout, making part substitution easier.
  • The output stage (4x power Darlinton transistors and 4x 0.68ohm emitter resistors) needs to be assembled off board.
References:
View full details