TEAC A-7030U (circa 1969–1971)
Nearly everything known about the TEAC A-7030U comes from the company's own advertising. TEAC's ads from mid-1969 (High Fidelity, July 1969, p.105; Audio, September 1969, p.75) pitched it as a stereo tape deck with top-level sound at 15 or 7½ ips. The ads listed a dual-speed hysteresis synchronous capstan motor, two induction motors for the reel drive, and tape tension adjustment for reels up to 10½ inches. Also listed were solenoid transport controls, an optional remote/pause control, a cueing button, and off-the-tape monitoring that could be engaged without interrupting a recording. Sound-on-sound, echo, and a built-in mic/line mixer finished out the advertised features.
The fullest documentation that survives is the manufacturer's specification block that Audio printed in February 1971 (p.48):
- Speeds: 15 and 7½ ips
- Heads: four — two-track erase, record, and playback, plus four-track playback
- Reel capacity: up to 10½ inches
- Motors: three — dual-speed hysteresis synchronous for capstan drive, two eddy-current for the reel turntables
- Wow and flutter: 0.05% at 15 ips; 0.08% at 7½ ips
- Signal-to-noise: 58 dB (two-track); 55 dB (four-track)
- Crosstalk: 40 dB at 1 kHz
- Frequency response: 40–20,000 Hz ±2 dB at 15 ips; 50–15,000 Hz ±2 dB at 7½ ips
- Inputs: microphone (10,000 ohms, 0.5 mV min.); line (300,000 ohms, 0.1 V min.)
Past those two sources, the record thins out fast. No production years, original price, or service literature turned up in the material reviewed. By August 1971, Audio (August 1971, p.20) listed a TEAC 7030 SL tape deck among current equipment. So some variant or running change existed, but how it relates to the A-7030U is not documented. What does survive describes a three-motor stereo deck with solenoid controls, sound-on-sound, and 10½-inch reels.
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