Up for sale is a Audio by Van Alstine Fet Valve EC Hybrid Preamplifier with options.
Unit is in excellent shape. Smoke-free home.
Asking: $650. Paypal only. I will cover fees. Buyer pays shipping.
The design combines tube and solid-state in the same stages inside the overall gain loops. Van Alstine described the circuit: The input circuits are triode vacuum tube, the pre-driver circuits are compound hybrid vacuum tube power MOSFET - Fet Valve transimpedance amplifiers, and the output is power MOSFET." According to Van Alstine the hybrid design avoids having the tube section directly driving real-world loads but instead uses the tube for voltage amplification only, all current and load drive being handled by the power MOSFETs.
All reasonable offers will be considered.
