CORAL TA-5000
Price unknown (around the late 1960 s?)
Commentary
A solid-state stereo receiver that consists of all transistors for both the pre-main tuner and the main tuner.
The complimentary service SEPP-OTL system is used without using an input transformer.
In addition, an EPC protection circuit is used to prevent damage to the power transistor due to shorting of the speaker circuit.
The tuner section uses a five train varicon with three FM-trains and two AM-trains.
In addition, the IF circuit design of 4-stage amplification and 2-stage limiter enables reception with less distortion even in low-power regions.
The automatic switching device between FM stereo and mono is purely electronic and automatically switched. The signal is received automatically by stereo broadcast transmission.
In addition to the AFC circuit and SCA filter circuit, auxiliary circuits such as FM muting circuit, FM stereo beacon, headphone jack and DIN connector are mounted.
An original inclined panel is adopted from the viewpoint of ergonomics.
Model Rating
Type | FM/AM Receiver |
Amplifier Unit | |
Effective output (distortion rate 1% or less, 1 kHz) | 17W/17W (8 Ω load) |
Music power (distortion rate 1% or less, 1 kHz) | 25W + 25W (8 ohm load) |
Input sensitivity | Tape Head:2.5mV Phono:3mV AUX:300mV |
Recorded output | 250mV |
Tone control | Bass : 100 Hz, ± 14 dB Treble : 10 kHz, ± 19 dB |
Equalizer | Tape Head:NAB(19cm) Phono:RIAA |
Signal-to-noise ratio | Tape Head : 60 dB or more Phono : 60 dB or more AUX : 60 dB or more |
Tuner Section | |
Receiving frequency | FM : 76 MHz to 90 MHz AM : 530 kHz to 1610 kHz |
Sensitivity | FM : 2.5 μ V AM : 50 μ V |
FM Multi / Separation | 35 dB or more |
Signal-to-noise ratio | 60 dB or more |
Crossover frequency | 750 Hz, 8000 Hz |
Output sound pressure level | 97dB/W-m |
<General> | |
Accessory circuit | EPC Protection Circuit (PAT.) Automatic switching between FM stereo and mono FM stereo beacon Muting circuit AFC circuit SCA filter circuit Tuning indicator Headphone jack DIN connector |
Power supply voltage | AC100V/117V/220V/240V, 50Hz/60Hz |
External dimensions | Width 475x Height 155x Depth 320 mm (Excluding Knobs) |
Weight | 8.2kg |