DIY tape echo - improvements!

Improvements!
• Tape tension arm! Adjusting the tape tension is crucial, and having an arm with a large wingnut helps a lot. Highly recommended for all tape looping experiments.
• Running the TA7668 from batteries made it a lot quieter.
• Added stereo-mono and ground lift switches the to right extra head.
• Even though the Nagra records all over the tape, tape height / azimuth can always be better.
• Running the tape head amp through an external mixer means you can pan and adjust individual feedbacks via FX-send from three channels = more fun!

The tape head adapter is a small board with a TA7668 on it.
https://www.alldatasheet.com/datashee...

These boards can be bought all over... here's an example (no affiliation)
https://www.amazon.se/-/en/TA7668-Pre...

Initial demonstration:
   • DIY Tape Echo - Nagra III tape delay,...