Nice haul, highlux. Lots of older gear there, but there are some useful pieces especially for a audio/amplifier guy. The distortion analyzer sticks out. The variac will be useful, and you must have at least one or two good signal generators. The curve tracer may be good for matching transistors for amps, either to get a good matched long-tailed pair for input stages, or for matching other transistors between channels. A pulse generator with fast rise time is a good thing to have to calibrate an oscilloscope's mid and high frequency response, and is good to check that an amplifier is stable and does not exhibit ringing with a step input. The Genrad 2220 Bug Hound may prove useful if you can familiarize yourself with how it works and how to use it to trace faults.
Yesterday I stopped by a surplus store and scored a nice working Tek 2465A 350 MHz 4-channel analog scope for CAD$150 (~USD$110 ), and a Xantrex 6030D (XT 30-2) dual 30V/2A power supply with GPIB for CAD$75 (~USD$55). I also picked up a 1/2 lb spool of 0.010" 63/37 solder for $5. It's a little thin, I wanted 0.015 or 0.020 but you can't argue with the price.
I certainly didn't need another power supply, as I have far too many already, but I did really want one with GPIB so I could do some automation of battery charging and other tasks. Both work great but need some cleanup. The power supply front panel is
horribly yellowed; I will break out my homemade retrobright mixture and UV lamp and see what I can do. I haven't yet tested the GPIB. The GPIB connectors look shiny new and the address dip switches are both set to zero, which indicates to me that the GPIB has never been used.
The Tek 2465A is an example of one of the last and best pure analog CRO scopes. The front panel controls are push buttons and rotary encoders instead of old school clunky switches that the signals actually travel through. It has on-screen readout of parameters (vertical and horizontal settings, cursor measurements, etc). Two strikes against this particular one: no GPIB option, and it's not a 2465
B (400 MHz). It quite good aesthetically, but it has some very stubborn permanent marker on the plastics
and one missing control (horizontal vernier), but it is otherwise in very good shape - no dents or cracks. The CRT is OK but not razor sharp, and it could use a contrast filter. I don't know if I will bother with trying to sharpen it. I know some here turn up their noses at analog CROs but I am thrilled to add this one to my bench at a bargain price.