ClassicAPI Discrete Voltage Follower

Projects > ClassicAPI Discrete Voltage Follower

Classic Audio Products of Illinois’ Discrete Voltage Follower is a PCB and parts kit for assembly of a complete +/-16V voltage follower. Also known as a “buffer” a voltage follower is a unity-gain amplifier that provides provides ideal impedance matching between stages of a circuit.

Voltage Follower Features:

  • Fully discrete design
  • Utilizes 5087 and 5088 transistors
  • Same circuit found in original API 550A EQ circuit


  • $6 for full kit

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