Calibration Cassette. Azimuth 15kHz, or 12.5kHz, or 10kHz or 8kHz or 6.3kHz

Description

GennLab Azimuth Alignment Cassettes.
Following options are available
6.3, 8, 10, 12.5, 14 or 15 kHz Azimuth Test Cassette/Tape.
Please note. These cassettes are 90 degrees  ANGLE cassettes.
They can not be used to equalize channel outputs or as Frequency Response cassettes.
Suitable for Playback Head Azimuth alignment of any Cassette Tape Deck using a dual trace oscilloscope (minimum difference in phase between channels) or an AC millivoltmeter (maximum Output Level)
Only new TDK, TEAC, MAXELL, SONY, AMPEX or RTM 17u tape is used when recording. Azimuth cassettes are recorded IN SHELL using a tape recorder with Record head azimuth control during recording.
Time Constant: 3180us + 70us
Record Level: 20dB below 200nWb/m @ 400Hz. To order a cassette with different Record Level go to the TEAC Calibration Cassettes or
SONY Calibration Cassettes page.
Frequency fluctuation: +/-0.01% measured
Vertical azimutn angle: 90 degr. +/- 2 min
Duration 10 min recorded in the MIDDLE of the Tape from 2 min 30 sec to 12 min 30 sec for the 1-7/8 ips tape.
Please specify cassette Frequency from the following options:
315 Hz, 6.3 kHz, 8 kHz, 10 kHz, 12.5 kHz, 14 kHz, 15 kHz, and
cassette Speed from the following options:
15/16 ips (2.38125 cm/sec), 1-7/8 ips (4.7625 cm/sec), 3-3/4 ips (9.525 cm/sec), 7-1/2 ips (19.05 cm/sec), 15 ips (38.1 cm/sec).