After a brief review of the history of the K2-W vacuum-tube op amp, an LTspice model is used to create its schematic in ...
4. Stephen A. Dyer, “The GAP/R K2-W Vacuum-Tube Op Amp in SPICE,” Electronic Design, Dec. 9, 2024. 5. “Model K2-W Operational Amplifier,” (data bulletin). 6. “Model K2-W Operational ...
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