KOKUSAI KT-300NV VCR VHS Video Cassette Torque Meter with Cover
Cassette Torque Meter (used on a Tascam Porta02)
Unusual cassette test tools | Audiokarma Home Audio Stereo Discussion Forums
SONY カセットトルクメーター TW-2231 CASSETTE TORQUE METER 早送り、巻き戻しトルク確認用 - オーディオ機器
Sony Cassette Torque Meter - Vintage Audio Love | Facebook
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1pc Sony CASSETTE TORQUE METER Test Tape TW-2231 free shipping