Tuesday, 15 July 2014

Philips Amplifier RH 521 Revisited Class AB 50W Project



Power section of Philips RH 521 70's Calss AB Amplifier modified in:

Full Complementary Output Power Stage, Thoshiba 2SC3281 2SA1302 or Sanken 2SC3519 2SA1386

Cascode for VAS Stage

Feedback amount changed

Philips RH 521 Amplifier 
Distortion at 20Vpp



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