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mrl

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    Revox A77 Calibration Tape

    Hi all, I have a 2-track standard speed (7.5&3.75ips) Revox A77 that I'd like to calibrate. I know that I need to buy an MRL tape, but I'm confused as to which one I need. I think this one fits the bill: https://reverb.com/item/34268186-1-4-7-5-ips-mrl-four-frequency-calibration-tape The four...
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