ANALOG TAPES — 1/2 15 IPS MRL Four Frequency NAB 250 nWb/m Calibration Tape

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The journeys of a vintage audio geek (Netherlands)

Tape Guide, PDF, Equalization (Audio)

Burlington Recording 1/2x 2500' PRO Series Reel To Reel Tape

old, crappy tape deck advice, Page 3

MRL 1 15 IPS MRL 355 nWb/m Four Frequency ATR Calibration Tape on

LUNA Ampex ATR-102 Master Tape Extension Manual – Universal Audio

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1/2 30 IPS MRL 355nwb (+6) 5 Frequency Calibration Tape: 1 kHz

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1/4 15 IPS MRL NAB (250 nwb) Four Frequency Calibration Tape

Advice on correct MRL calibration tape to buy