TDK Blank Cassette Alignment Tape AC-223 AC-512 AC-712 For AD SA MA Japan. Blank alignment/calibration tape from TDK, set of 3 for all three types of cassettes. Sealed, never used. Sold as is.

1 kHz Track Alignment Cassette 87B GennLab 1 kHz Track Alignment Cassette Version 87B The Cassette is recorded for the Playback Head Height calibration of Nakamichi cassette decks. Adjust Playback Head Height Gear to obtain the MINIMUM reading of the Output Signal for both channels. Please note. This new Cassette can now be used to adjust all other brands of cassette tape deck equipped with adjustable Tape Guides NOT permanently attached to the head. The Tape is recorded on new TDK 18u tape OFF SHELL using the OTARI 0.15 (3.81 mm) Reel-to-Reel MX-5050BIII-1-P2/1 Production tape recorder and professional test equipment.This tape recorder, is equipped with the Focused-Field Narrow Track Instrumental Record Heads and has precisely machined Tape Guides. This provides an extremely stable Track position on the tape. The 1 kHz Track is recorded at the END of tape starting at the last 5 minutes. The 87B version of the Tape is equivalent to Nakamichi DA09087B Test Tapes. It can be used to calibrate Nakamichi decks equipped with Playback Head with wide gap between channels: CR Series (CR-3, CR-4, CR-7), BX-300, Dragon etc. FYI, The Japanese ABEX stopped the production and sales of ALL test cassettes in October 2010

1 kHz Track Alignment Cassette 07A GennLab 1 kHz Track Alignment Cassette Version 07A The Cassette is recorded for the Playback Head Height calibration of Nakamichi cassette decks. Adjust Playback Head Height Gear to obtain the MINIMUM reading of the Output Signal for both channels. Please note. This new Cassette can now be used to adjust all other brands of cassette tape deck equipped with adjustable Tape Guides NOT permanently attached to the head. The Tape is recorded on new TDK 18u tape OFF SHELL using the OTARI 0.15 (3.81 mm) Reel-to-Reel MX-5050BIII-1-P2/1 Production tape recorder and professional test equipment.This tape recorder, is equipped with the Focused-Field Narrow Track Instrumental Record Heads and has precisely machined Tape Guides. This provides an extremely stable Track position on the tape. The 1 kHz Track is recorded at the END of tape starting at the last 5 minutes. The 07A version of the Tape is equivalent to Nakamichi DA09007A Test Tapes. It can be used to calibrate Nakamichi decks equipped with Playback Head with narrow gap between channels: 480, 481, 482Z, 582, 582Z, 600, 600II, 660ZX, 670ZX, 680ZX, 682ZX, 700, 700II, 700ZXE, 700ZXL, 1000II, 1000ZXL, ZX-3, ZX7, ZX9. FYI, The Japanese ABEX stopped the production and sales of ALL test cassettes in October 2010

AUDIO ALIGNMENT AND SERVICE TAPE. Audio Alignment Tape;Mins 0-6 1KHZ Sign Wave. to accesssignal to noise, and output levels. Mins 6-12 5KHZ Sign Wave. For tapehead alignment, wow and flutter. Mins 12-18 2.5KHZ Sign Wave.Suppressed for 10 seconds every50. For track finding circuits. Mins 18-24 1KHZ. Sign Wave, 0.2seconds long every 10 seconds.Timing will determine tape speed.

VCR VIDEO ALIGNMENT AND SERVICE TAPES. Alignment Tape;Mins 0-8 RF SWEEP/AUDIO 0 Mins 8-16 COLOUR BARS/AUDIO 3 KHzMins 16-24 STAIR STEP/MONOSCOPE 333HzMins 24-30 CROSSHATCH/LINEARITY (WITH CIRCLE & BORDER)TAPE SPEED CALIBRATION VALUE. Video Service Cassette;Mins 0-30 COLOUR BAR SIGNAL/1 KHz AUDIOSUITABLE FOR GENERAL SERVICINGCHECKING OF MECHANISM AND FAULT FINDING.

AUDIO ALIGNMENT AND SERVICE TAPE. Audio Alignment Tape;Mins 0-6 1KHZ Sign Wave. to accesssignal to noise, and output levels. Mins 6-12 5KHZ Sign Wave. For tapehead alignment, wow and flutter. Mins 12-18 2.5KHZ Sign Wave.Suppressed for 10 seconds every50. For track finding circuits. Mins 18-24 1KHZ. Sign Wave, 0.2seconds long every 10 seconds.Timing will determine tape speed.

1 kHz Track Alignment Cassette 87B GennLab 1 kHz Track Alignment Cassette Version 87B The Cassette is recorded for the Playback Head Height calibration of Nakamichi cassette decks. Adjust Playback Head Height Gear to obtain the MINIMUM reading of the Output Signal for both channels. Please note. This new Cassette can now be used to adjust all other brands of cassette tape deck equipped with adjustable Tape Guides NOT permanently attached to the head. The Tape is recorded on new TDK 18u tape OFF SHELL using the OTARI 0.15 (3.81 mm) Reel-to-Reel MX-5050BIII-1-P2/1 Production tape recorder and professional test equipment.This tape recorder, is equipped with the Focused-Field Narrow Track Instrumental Record Heads and has precisely machined Tape Guides. This provides an extremely stable Track position on the tape. The 1 kHz Track is recorded at the END of tape starting at the last 5 minutes. The 87B version of the Tape is equivalent to Nakamichi DA09087B Test Tapes. It can be used to calibrate Nakamichi decks equipped with Playback Head with wide gap between channels: CR Series (CR-3, CR-4, CR-7), BX-300, Dragon etc. FYI, The Japanese ABEX stopped the production and sales of ALL test cassettes in October 2010

1 kHz Track Alignment Cassette 07A GennLab 1 kHz Track Alignment Cassette Version 07A The Cassette is recorded for the Playback Head Height calibration of Nakamichi cassette decks. Adjust Playback Head Height Gear to obtain the MINIMUM reading of the Output Signal for both channels. Please note. This new Cassette can now be used to adjust all other brands of cassette tape deck equipped with adjustable Tape Guides NOT permanently attached to the head. The Tape is recorded on new TDK 18u tape OFF SHELL using the OTARI 0.15 (3.81 mm) Reel-to-Reel MX-5050BIII-1-P2/1 Production tape recorder and professional test equipment.This tape recorder, is equipped with the Focused-Field Narrow Track Instrumental Record Heads and has precisely machined Tape Guides. This provides an extremely stable Track position on the tape. The 1 kHz Track is recorded at the END of tape starting at the last 5 minutes. The 07A version of the Tape is equivalent to Nakamichi DA09007A Test Tapes. It can be used to calibrate Nakamichi decks equipped with Playback Head with narrow gap between channels: 480, 481, 482Z, 582, 582Z, 600, 600II, 660ZX, 670ZX, 680ZX, 682ZX, 700, 700II, 700ZXE, 700ZXL, 1000II, 1000ZXL, ZX-3, ZX7, ZX9. FYI, The Japanese ABEX stopped the production and sales of ALL test cassettes in October 2010