DENON/COLUMBIA 7D70
¥ 39,800 (around 1968)
Commentary
A stereo tape deck with built-in all-transistor recording and playback amplifiers.
High-bias frequencies of 90 kHz enable FM stereo broadcast transmission recording.
Automatic tape stopping device and temporary stopping device are installed.
You can mix left and right recordings separately.
Equipped with DIN connector and level meter.
It supports 3 speeds.
Model Rating
Type | Tape deck |
Track format | 4-track, 2-channel |
Tape speed | 19cm/s, 9.5cm/s, 4.8cm/s |
Maximum reel used | No. 7 |
Recording system | AC bias system |
Erasing method | AC erasing system |
Recording time | 4.8cm/s : 4 hours round trip (stereo) |
Fast forward / rewind time | Within 3 minutes and 30 seconds (when using No. 7) |
Wow and flutter | 19cm/s : not more than 0.15% rms 9.5cm/s : not more than 0.25 per cent rms 4.8cm/s : 0.3% or less |
Frequency characteristic | 19cm/s : 30 Hz to 20 kHz 9.5cm/s : 30 Hz to 13 kHz 4.8cm/s : 30 Hz to 7 kHz |
Signal-to-noise ratio | 50dB |
Input terminal | Mic : -66dBm (10k Ω) Pre amp : -20dBm (100k Ω) Din : -40dBm (10k Ω) |
Output terminal | Pre amp : -20dBm (0.774V/2k Ω) Din : -20dBm (100k Ω) |
Power supply voltage | AV100V, 50Hz/60Hz |
External dimensions | Width 394x Height 374x Depth 196 mm |
Weight | 10kg |