TEAC CR-310 Communications Recorder, 10 tracks, VHS-based

Here's a whole category of device I never knew existed - a multi-track communications audio recorder that records onto VHS cassettes. I found this one while browsing eBay; unfortunately it turned up without its keys and without its documentation, but I managed to get it working and have a little play with it. 00:00 - Preamble 05:50 - First Power Up and Look at the Heads 08:40 - Playing a Video Recording 13:20 - Figuring out the Input Connector Pinout 17:47 - First Audio Input Test 21:00 - Test Music Recording 24:41 - Test Speech Recording 27:06 - Conclusion and Wrap-Up