Teac TO-8 Test Tone Oscillator in used but good condition. This is a very useful device (sine wave oscillator) for tape deck head alignment for open reel to reel and cassette tape decks. It can be used for trouble-shooting and testing of any audio equipment. The unit has three selectable frequencies (400 Hz, 6.3 kHz and 12.5 kHz) via rotary switch. Output is a single female unbalanced RCA jack @ 10k Ohms with selectable output of -10dB (0.3V), -30dB (0.03V) and off. Frequency response is +/- 1.0 dB. THD is less than 1.5%. Frequency accuracy is +/-10% and runs off a single 9 volt battery (operation up to 30 hours).
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