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| Track System | 4-track, 2-channel, stereo/monaural system |
|---|---|
| Reel Size | Up to 7 inch reel |
| Total Harmonic Distortion | 1.5% |
| Type | Reel to Reel |
| Heads | 1 x playback, 1 x record, 1 x erase |
| Motor | 1 x capstan, 2 x reel |
| Tape Speeds | 3.75 & 7.5 ips |
| Wow and Flutter | 0.08% (7.5 ips) |
| Frequency Response | 30Hz to 23kHz (7 1⁄2 ips) |
| Output | 1.23V (line) |
| Inputs | line |
| Outputs | Line |
Detailed technical specifications for the tape recorder, including performance metrics and physical characteristics.
Step-by-step instructions for measuring key performance parameters like speed, wow/flutter, and frequency response.
Procedures for adjusting head height, slant, and azimuth for optimal tape contact.
Instructions for adjusting playback and recording levels, bias frequency, and voltage.
Complete circuit diagram for the Model 4400 tape recorder.
Complete circuit diagram for the Model 4400D tape deck.