A few pieces of vintage audio and high voltage test equipment B&K, R&S. These are working units, even though they probably belong in a museum. The high voltage electrostatic voltmeter belong on a movie set, it reads up to 20,000 volts with a large analog display. It has a long insulator at the back (with adjustment for full scale of 5, 10 or 20 kV and it is working - a very unique display piece. Very rare, asking $200.
Two audio test instruments using vacuum tubes - from early 1960s - last used over 50 years ago. A signal generator, audio range from 10 Hz to 1 MHz made by German test equipment company Rhode and Schwarz, type SRB. Adjustable output with calibrated scale up to over 10 V and down to 1 mV RMS. Adjustable output impedance as well, 50 ohms to 600 ohms (but will also drive speaker drivers at 4 or 8 ohms, but voltage will be a bit lower). Works perfectly. No damage to case, just some dust and grime from old calibration stickers. Asking $200.
A very high quality audio (and beyond) analog voltmeter made by audio specialty company, Reel & Kjaer of Denmark. It is a model 2409 electronic voltmeter, with range of 2 Hz to 2 MHz (so old it says the range in cycles per second, c/s). Can be set to RMS, peak, average readings with fast response or slow damping (as you may use for a 'VU' meter. Comes with custom signal probe. Works perfectly (level compares closely to a modern digital meter). Some calibration sticker residue (not removed, in case you are after the vintage look). Last sticker for preventative maintenance reads 16 Oct 1967 - so a bit overdue! Asking $250.
More modern test equipment can replace the above for less money, but these are really valued as works of past electronic art and design. Items are quite heavy and quite delicate (especially the electrostatic voltmeter) so local pick-up only.
I'm flexible on package deal (I have some other test equipment listed).