Sony TC-378
Sony
Japan
Tape Deck Details
Number of Motors
1
Number of Heads
3
Head Configuration
Stereo
Wow & Flutter
0.09%
Signal-to-Noise [dB]
58
Dimensions [mm]
418 × 210 × 392
Weight [kg]
12
Year built
1975 - 1978
Head Composition
Ferrite
Equalization
NAB
Frequency Response
30 Hz to 27 kHz
Speed
1⅞, 3¾, 7½
Max Reel [inch]
7
Tracks
1/4 Rec/PB
Price
Additional Information
The Sony TC-378 is a classic, high-performance consumer reel-to-reel tape deck manufactured in the mid-1970s (approximately 1975–1978). It is a direct successor to the highly popular TC-377, maintaining the most critical features while offering minor technical refinements.
It is renowned for being a reliable, well-specified three-head stereo machine featuring Sony's exceptionally durable Ferrite and Ferrite (F&F) heads.
Key Specifications
Tape speeds: 7½, 3¾, 1⅞ ips (19, 9.5, 4.75 cm/s)
Heads: 3 ferrite (1 record, 1 playback, 1 erase) for off-tape monitoring
Reel size: Up to 7 inches (18 cm)
Motors: 1 synchronous motor
Frequency response: 30 Hz to 27 kHz (7½ ips); reduced at slower speeds
Wow and flutter: 0.09% (7½ ips)
Signal-to-noise ratio: 58 dB
Total harmonic distortion: 0.8%
Inputs: 60 mV (line, 100 kΩ), 0.2 mV (mic)
Outputs: 0.775 V (line, 100 kΩ+)
Semiconductors: 27 transistors, 7 diodes, 1 LED
Dimensions: 420 x 400 x 175 mm (16.5 x 15.7 x 6.9 inches)
Weight: 11.5-12 kg (25.3-26.5 lbs)
Features
Dual VU meters, tape selector (normal/SLH/low-noise), NAB/CCIR equalization
Mic/line mixing, sound-on-sound, auto shut-off, mechanical counter
Unique retracting pinch roller for easy tape loading; no pause button (uses momentary lift)
This successor to the TC-377 delivers improved specs and reliability (8/10 rating) for home archiving and overdubs, though supply reel bearings and belts often need servicing in surviving units.