Toshiba - SC-335 - ST-335 - PC-230D Hi-fi set - Multiple models

Toshiba HI-FI system composed of three pieces: cassette deck, power amplifier, and tuner

A) Toshiba PC-230D, stereo cassette deck with front-loading mechanism. This model was designed to aesthetically and functionally integrate with the coordinated series consisting of the ST-335 tuner and the SC-335 power amplifier, sharing the same brushed aluminum design and the distinctive analog VU meters.
Mechanical Specifications and Heads
Type: Single, compact cassette deck with 2 heads
Track system: 4 tracks, 2 channels stereo
Heads: 1 x recording/playback head, 1 x erase head
Tape speed: 4.8 cm/s standard
Wow and Flutter: 0.06% (WRMS)
Inputs and Outputs
Line In: 100 mV (RCA)
Mic In: 0.25 mV (front 6.3 mm jack dedicated to left and right channels)
Line Out: 0.4 V (RCA)
Front Controls and Features
Backlit dual analog VU meters for monitoring recording and playback levels.
3-digit mechanical counter for tape position with reset button.
Separate lever switches for selecting the tape type (Bias and Equalization).
Lever switch for turning the Dolby NR circuit On/Off.
Fine micrometer-level knobs for Left/Right Input Record Level (separate or coaxial).
Front jack for stereo headphones for direct audio monitoring.

B) Toshiba SC-335, stereo power amplifier belonging to the famous hi-fi series from 1978, renowned for its iconic brushed aluminum front panel dominated by two large illuminated analog VU meters for monitoring output power.
Power and Audio Performance Specifications
Output Power: 40 Watts per channel into 8 Ω (RMS, stereo coupling)
Total Harmonic Distortion (THD): 0.1% at rated power
Frequency Response: 5 Hz – 80,000 Hz
Damping Factor: 25 (into 8 Ω)
Signal-to-Noise Ratio (S/N): 95 dB
Speaker Load Impedance: Minimum 4 Ω (supports 4–16 Ω speakers)
Front Panel and Features
VU Meter: Two backlit needle indicators calibrated up to 100 W.
Meter Range Selector: Lever switch to set the VU meter scale to x1 (100 W) or x0.05 (5 W). Excellent for precisely visualizing needle movement even at low listening levels.
Speaker Selector: Independent lever control to on/off the speaker line (Speakers On/Off).
Power Switch: Mechanical push or lever-style on.
Rear Connections
Input: 1 stereo Line In input (RCA connectors for connection from preamplifier).
Output: Spring terminals for a pair of loudspeakers (Left/Right).
Physical and Build Characteristics
Dimensions: 420 x 95 x 260 mm

C) Toshiba ST-335, high-quality analog AM/FM stereo tuner.
This component is distinguished by its characteristic brushed aluminum front panel, the backlit tuning scale, and dual analog needle indicators for signal strength and frequency centering.
General Specifications
Type: Analog mono/stereo tuner
Tuning Bands: FM, MW (AM)
Year of Manufacture: 1978
Country of Manufacture: Japan
Finish: Silver with brushed aluminum front
Dimensions: 420 x 96 x 257 mm
Weight: 3.4 kg
FM Tuner (Frequency Modulation)
Frequency Range: 88 – 108 MHz
Sensitivity: 2.0 µV (IHF) / 2.2 µV (11.2 dBf)
50 dB S/N Sensitivity: 4.0 µV (mono) / 45 µV (stereo)
Signal-to-Noise Ratio (S/N): 73 dB (mono) / 65 dB (stereo)
Total Harmonic Distortion: 0.2% (mono) / 0.4% (stereo)
Frequency Response: 30 Hz – 15 kHz (±1 dB)
Selectivity: 60 dB
Stereo Separation: 40 dB
Capture Ratio: 1.0 dB
Image Rejection: 50 dB
IF Rejection: 80 dB
Output Level: 500 mV
AM/MW Tuner (Medium Wave)
Frequency Range: 525 – 1605 kHz
Sensitivity: 300 µV/m
S/N: 45 dB
Selectivity: 25 dB
Front Controls
Power lever switch
Large manual tuning wheel (flywheel dial)
FM Muting (On/Off)
Mode Selector (FM Auto / FM Mono / AM)
Red Stereo indicator for stations broadcasting in stereo
Dual analog VU meters: Signal Strength and Tuning (station centering)