View cart - 0 items/$0.00

1/4" 3.75 IPS MRL 21F201-A IEC & NAB 250nwb Multi-Frequency (12 Frequency) Calibration Tape

$184.95 Each

You are purchasing:
One (1)1/4" 3.75 IPS MRL 2L1F201-A IEC & NAB 250nwb Multi-Frequency (12 Frequency) Calibration Tape
(See below)

You are purchasing a brand new 21F201-A Multi-Frequency (12 Frequency) Calibration Tape from Magnetic Reference Laboratory (MRL).
The tape is 1/4" on a 7" Plastic reel.
The speed is 3.75 IPS.
The Equalization is IEC & NAB .

This tape will be at +3db (250 nWb/m) See the chart in the image pictures for info on tape length.

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 any tape. We can also make longer duration tapes by special order.


For wow and flutter, velocity/speed, and multi frequency tape there are other tapes that can be purchased from us. Contact us for details and question 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.