DENON/COLUMBIA 7D50
¥ 39,800 (around 1968)
Commentary
A stereo tape deck equipped with a preamplifier using silicon transistors.
Uses a push button.
Equipped with automatic tape stopping device.
Equipped with DIN connector and level meter.
Equipped with a one touch reset type tape counter.
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 6 kHz |
| Signal-to-noise ratio | 50dB |
| Input terminal | Mic : -66dBm (10k Ω) Pre amp : -20dBm (100k Ω) Din : -36dBm (10k Ω) |
| Output terminal | Pre amp : -4dBm (2k Ω) Din : -4dBm (2k Ω) |
| Power supply voltage | AV100V, 50Hz/60Hz |
| External dimensions | Width 380x Height 340x Depth 190 mm |
| Weight | 9kg |