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MRL 1/4" 15 IPS NAB 250 nWb Four Frequency Extended Calibration Tape:1 kHz, 10 kHz, 50 Hz and 100 Hz

$244.95 Each

You are purchasing a brand new Four Frequency Custom Extended Calibration Tape from Magnetic Reference Laboratory (MRL). The tape is 1/4" on a 7" plastic reel.
The speed is 15 IPS.

The four frequencies of the tape are: 1 kHz, 10 kHz, 50 Hz and 100 Hz
This tape will be at +3db (250 nWb/m)
The tape is 8 minutes long, with 2 minute for each frequency.
The Equalization is NAB.

This listing is for the MRL part number:

**Your order will be processed right away and shipped out in 2 to 3 weeks.

Alignment tapes, aka calibration or reference tapes, are required to properly set play back on any given tape deck. The alignment tape contains various signals, and array of frequencies, that let the operator setup a tape deck for playback prior to record alignment. We are an authorized dealer of MRL Tapes, which are very reliable. Please consult our resident experts if you have a question as to what alignment tape you should be using for your deck.

This alignment tape is custom recorded on RTM SM911 by MRL. If you want a different tape, this can be made on another tape.


For wow and flutter, velocity/speed, and multi frequency tape there are other tapes that can be purchased from us. Message us on eBay for questions and details about those tapes.

In the event of a tape emergency, message us for expedited shipping. Handling time is generally 2 or 3 days, but may be 5 at the most.

There are no returns as each tape is custom made with exception of replacement for defect.