Pioneer CT-4 Stereo Casette Deck AC100V 50Hz/60Hz 15W 1976 7.5kg Audio Japan

Description

Type Stereo cassette deck
Head Recording: Hard Permalloy head x 1
Erase: Ferrite head x 1
Motor Electronically controlled DC motor (built-in generator) x1
Fast winding speed: 85 sec. or less (at C-60)
Uneven rotation (WRMS) 0.08% or less
Frequency response General, LH tape: 30Hz to 14kHz, 40Hz to 13kHz ±3dB
Chrome tape: 30Hz to 16kHz, 40Hz to 15kHz ±3dB
Ferrichrome tape: 30Hz to 16kHz, 40Hz to 15kHz ±3dB
S/N
General, LH tape Dolby off: 52dB min.
Dolby on: 62dB or better (5kHz or better)
With chrome tape: 4.5dB improvement (over 5kHz)
Distortion: 1.7% or less
Input Sensitivity/Maximum Allowable Input
/ Impedance Microphone: 0.23mV/80mV/23kΩ (Applicable microphone impedance 250Ω to 30kΩ)
Line: 64mV/25V/100kΩ
DIN: 10mV/3.6V/2.2kΩ
Reference output level/max level
/ Impedance Line:450mV/800mV/50kΩ
DIN: 450mV/800mV/50kΩ
Headphone: 60mV/107mV/8Ω
Semiconductors used: 49 transistors (3 for motor electronic control)
FETs: 4
Diodes: 38 (for motor electronic control: 1)
Zener diodes: 3
Light emitting diode: 3
Power supply AC100V, 50Hz/60Hz
Power consumption 15W
Dimensions: W380 x H150 x D316mm
Weight 7.5kg