Audio Analyzer: Audio Precision Portable One Signal Generator and Audio Analyzer
Digital Multimeters. Keithley 2110
Variac. Very useful for testing new power supplies. Insuring 120V is applied to amplifier when fully loaded (Mains can drop below 120 VAC due to large current draw)
Transistor Tester. Sencore Super Cricket and Atlas DCA for transistor matching tests
Oscilloscope: Tektronix 2465B 400Mhz, 4 channel analog oscilloscope with DMM.
Picoscope: PC Oscilloscope for spectrum analysis in audio band
Digital Oscilloscope: Rigol Mixed Signal Oscilloscope DS1102D, 100MHz. Used for logic analyzer, at TechShop.
Power Supply: Home built +/- 55VDC unregulated supply, +/- 15VDC & +5 VDC regulated supplies, sharing common earth star point ground.
Lab Power Supplies: Protek Test +/- 30 VDC, +5 VDC, +/- 60 VDC.
DMM and LCR Meters.
Interconnect: Wide assortment of leads, clips and cables, and proto boards.
Resistive Loads: 8 ohm, 200 watt resistive loads mounted on heat sinks