I have just posted the following manuals for auction to ebay under phiscock3sct. All manuals are in good to excellent condition and starting bid is $2.
Dumont 248 oscilloscope. Dumont 304a oscilloscope. EA analog computer eai-tr-20 Fluke8000A voltmeter Heathkit analog computer. Heathkit grid dip meter gb-1b HP 1200a oscilloscope HP 1801 vertical amplifier HP 1821a timebase HP 3310a function generator HP 5221 electronic counter Khrohn-Hite 5100b function generator Philips PM2522 voltmeter Philips PM3110 oscilloscope Philips PM3230 oscilloscope Philips PM3410 sampling oscilloscope Philips PM6507 curve tracer Tektronix 2b67 timebase plugin Tektronix 3a1 vertical amplifier plugin Tektronix 3a6 vertical amplifier plugin Tektronix 3c66 carrier amplifier plugin Tektronix 511a oscilloscope Tektronix 564b storage scope Tektronix 564 storage scope Tektronix 575 curve tracer Weston catalog and technical description of moving coil instruments