For sale is one new reel to reel calibration /reference tape

The tape is recorded on a 2 track machineas the original Studer Revox reference tape.

The calibration tape is intended to be used forplayback level reference adjustment and Azimuth adjustment according to StuderRevox specifications.

You only need one tape as this contains bothAzimuth and playback level reference.

The test tape can be used for all types of tape recordersrunning 19cm/s

The tape is recorded on a full refurbished and correctadjusted STUDER Revox B77 Mk 2 two track machine. Referenced to a test taperecorded on a STUDER A80 machine.

Frequencies and reference levels are generated by a custommade automated frequency sequencer with separate Wien bridge generators forultra-low distortion.

The actual recording levels are measured by theintegrated AC thru RMS dBm meter section on the sequencer / calibration box forhighest recording accuracy.

Frequency accuracy of the test box is better that 0.5%and the reference levels are better than +/-0.5 dB

The calibration tape consists of 4 tracks recorded at19 cm/s ( 7 1/2\" / sec ) Half track:

Track#11 kHz 0 dBm 120 sec 257 nWb/m

Track#21 kHz-20 dBm 60 sec

Track#310kHz 0 dBm 120 sec

Track#410kHz-20 dBm 60 sec

Reference tape comes with green / red leader tape foreasy direction identification on a 15 cm spool

The tape is recorded on new BASF LPR35 ( Pyral ) tape.

Note that the Reference tape is recorded “Tale endout” and need to be rewind to an empty spool before use.

This operation ensures that the test tape is alignedon the reel according to the tape recorder under tests actual tape feed mechanismsalignment for maximum precision during the adjustment.

I always recommend storing the Reference tape“Tale end out” for protection and minimal “print trough”

If other recording speeds are required please contactme

The Recorder and the test box are not for sale.

Below is a link to my complete adjustment manual for Revox B77

Remember to add https:// before the link above

Niels

E.E.B.sc