![Audio Cassette Speed Calibration Test Tape - Free Shipping Worldwide - Test Tapes - Audio Cassettes - Duplication.ca Audio Cassette Speed Calibration Test Tape - Free Shipping Worldwide - Test Tapes - Audio Cassettes - Duplication.ca](https://www.duplication.ca/images/D/testtape1-3150-hz_1200.jpg)
Audio Cassette Speed Calibration Test Tape - Free Shipping Worldwide - Test Tapes - Audio Cassettes - Duplication.ca
![Multifrequency Calibration Tape, ¼″, 15 ips (38.1 cm/s), 320 nWb/m, IEC 1 (CCIR), 12 min., Item no. 76403 Multifrequency Calibration Tape, ¼″, 15 ips (38.1 cm/s), 320 nWb/m, IEC 1 (CCIR), 12 min., Item no. 76403](https://www.test-tape.com/wp-content/uploads/2020/02/76403_800x.jpg)
Multifrequency Calibration Tape, ¼″, 15 ips (38.1 cm/s), 320 nWb/m, IEC 1 (CCIR), 12 min., Item no. 76403
![SEPEA Multi Frequency Audio Calibration Tape - 1/4", CCIR, 19cms/7.5ips : Amazon.co.uk: Musical Instruments & DJ SEPEA Multi Frequency Audio Calibration Tape - 1/4", CCIR, 19cms/7.5ips : Amazon.co.uk: Musical Instruments & DJ](https://m.media-amazon.com/images/I/71CiVrzHDvL.jpg)
SEPEA Multi Frequency Audio Calibration Tape - 1/4", CCIR, 19cms/7.5ips : Amazon.co.uk: Musical Instruments & DJ
![BASF reference tape calibration tape stereo 38 cm/s 1/4 inch unused | Open Reels | Tape Material | Recording Separates | Audio Devices | Spring Air BASF reference tape calibration tape stereo 38 cm/s 1/4 inch unused | Open Reels | Tape Material | Recording Separates | Audio Devices | Spring Air](https://www.springair.de/media/image/3c/e9/ec/72661_600x600.jpg)
BASF reference tape calibration tape stereo 38 cm/s 1/4 inch unused | Open Reels | Tape Material | Recording Separates | Audio Devices | Spring Air
![SEPEA Multi Frequency Audio Calibration Tape - 1/4", CCIR, 19cms/7.5ips : Amazon.co.uk: Musical Instruments & DJ SEPEA Multi Frequency Audio Calibration Tape - 1/4", CCIR, 19cms/7.5ips : Amazon.co.uk: Musical Instruments & DJ](https://m.media-amazon.com/images/I/71XiQOhnQGL._AC_UF1000,1000_QL80_.jpg)
SEPEA Multi Frequency Audio Calibration Tape - 1/4", CCIR, 19cms/7.5ips : Amazon.co.uk: Musical Instruments & DJ
![idk which test tape is right, would be any compatible with 3000hz such as my Sony TC-KE 400 S?. i wanna adjust the correct speed. : r/cassetteculture idk which test tape is right, would be any compatible with 3000hz such as my Sony TC-KE 400 S?. i wanna adjust the correct speed. : r/cassetteculture](https://i.redd.it/st9mvbt2nb6c1.jpg)