AIWA AD-7500
¥ 69,800 (around 1976)
Made In Japan
https: //audio-database.com/AIWA/player/ad-7500.html

Type Stereo cassette deck
Track system 4-track 2-channel
Frequency characteristic LH Tape : 20 Hz ~ 15 kHz
FeCr Tape : 20 Hz to 17 kHz
CrO2 Tape : 20 Hz to 17 kHz
Signal-to-noise ratio 65 dB (Dolby NRon, FeCr Tape)
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/k Ω (3k Ω)
Mic : 0.3mV/200 Ω ~ 10k Ω Compatible
Output Level / Impedance Line : 0.775V/50k Ω or more compatible
Din : 0.775V/50k Ω or more compatible
Headphone : 8 Ω
Semiconductor used IC : 4
Transistor : 36
Diode : 34 pcs
LED : 2 pcs
Pwer 100 VAC, 50Hz/60Hz
Power consumption 10W
External dimensions Width 420x Height 150x Depth 300 mm
Weight 7.5kg
Attachment Head cleaning rod
Connection code