$600 · Grant Fidelity/Yaqin EL34 Push-Pull tube amplifier

Grant Fidelity PP EL34 integrated amplifier Mule $600, O’Netics OPTs for the next upgrade $350 This amplifier i a Beast. It comes with its own dolly. Pickup only. Substantial aluminum chassis (the thickness of the top plate gives an idea. A thick chromed steel front panel with window so you can see the glowing tubes (i recall a blue glow from an LED as well). Balanced input routes to a Blanced to Single Ended opamp. This started out as a Yaqin PP 655(?) amplifier rebranded as Grant Fidelity. It was used as a mule to develop a PP EL34 amp. Advertised as 45w Class A it was bog stock Class AB. Uses 6SN7, 6SL7, and a mathced set of EL34. Changed to the smaller output tube to improve relative PSU output. Triode/ultralinear switches added. 20/40 W output. Paraphase phase-splitter ci=onverted to a long tailed pair with CSS. Better binding posts in a more convient format that is happy with dual bananas. What is under the covers is unknown. Bud made a set of O’Netics output transformers.