Reel to Reel Calibration tape - frequency response tests

Reel to Reel Calibration tape - frequency response tests. From this we see that KZbin cuts off 16kHz and that all up to around 15,300 Hz is reproduced. We also see that there is no compression of signal levels, all levels here transmitted and reproduced accurately. It's therefore as good as FM Radio standard.

[@richardadelberg8961]

Where do I obtain a calibration tape for reel to reel

[@unequally-tempered]

Possibly ask www.vintagetech.co.uk

[@zachramsden9549]

Can I use this video to calibrate my reel to reel, or would I actually need the test tape itself?