Glass Audio volume 2, number 2/1990

  • A Transformerless Output Amplifier (1)
  • Valve views (3)
  • From Oscilloscope to Curve Tracer (10)
  • On the Nature of Power Supplies (14)
  • Test Bench Power Supply (17)
  • Kit Reports (Sonic Frontiers' SFM-75 Power Amplifier) (21)
  • Unveiling the Silver Seven (Bob Carver's 500W Monoblock Amplifier) (30)
  • World Directory (Manufactures of Tube Electronics) (35)
  • Vintage Glass (39)
  • The Radford STA 15 Basic Amplifier Circuit and Power Supply (1965)
  • Audio Shards (40)
  • Letters (42)
  • Kits, Components (50)
  • Books from Old Colony Sound Lab (52)
  • Classified (60)