AIWA AD-7400
Made In Japan, 1977

audio-database.com/AIWA/player/ad-7400-e.html

Type Stereo cassette deck
Track format 4-track 2-channel
Motor D38 Pulse FG Servo Motor
Heads Ferrite guard head
Frequency characteristic LH Tape : 20 Hz ~ 15 kHz (30 Hz ~ 13 kHz ± 3 dB)
FeCr Tape : 20 Hz ~ 17 kHz (30 Hz ~ 15 kHz ± 3 dB)
CrO2Tape : 20 Hz to 17 kHz (30 Hz to 15 kHz ± 3 dB)
Signal-to-noise ratio 65 dB (Dolby NRon, FeCr, peak level)
Wow flutter 0.05%(WRMS)
Tape speed 4.8cm/s
Fast forward and rewind time 90 seconds (C-60)
Recording system AC bias
Erasing method AC Erase
Input Sensitivity / Impedance Line : 50mV/50k Ω or more
Din : 0.1mV/3k Ω
Mic : 0.3mV/200 ~ 10k Ω Compatible
Output Level / Impedance Line : 0.775V/10k Ω or less
Din : 0.775V/10k Ω or less
Headphone : 3.4mW/8 Ω
Semiconductor used Transistor : 34
ID : 3 pieces
Diode : 22 pcs
LED : 2 pcs
Pwer 100 VAC, 50Hz/60Hz
Power consumption 10W
External dimensions Width 420x Height 150x Depth 300 mm
Weight 7.5kg