Tektronix THS720A for a bargain!  Refurbished NiCd battery
Channel: W7 DEX
Date: 2019-05-06

Here is the Tektronix THS720A Oscilliscope that I recently purchased at an estate sale.  The bag included x10 two probes, power supply, WaveStar software on floppy disks, programming cable, reference and operation manuals.

The battery had some corrosion on the terminal, so I went to a battery store to replace them.  The new battery only cost $19.99 and had a slightly larger capacity.  It's composed of (4) NiCd cells, 1.2V a piece, with a total rating of 4.8V and 3000mAh.