Sony TC 2140 (1975)
A stereo cassette deck released by Sony in 1975, with an F&F head and an integrated recording limiter.
Overview
The Sony TC-2140 is a stereo cassette deck introduced in 1975. Sony built it for durability and clean recordings. The head is an all-ferrite F&F (ferrite & ferrite) type, known for high abrasion resistance. A built-in limiter circuit keeps sudden input peaks from distorting. The deck also has a lock-type pause button, an MPX filter and an auto shut-off mechanism. A 3-stage switchable tape selector handles different tape types.
Specifications
| Wow and flutter | 0.1%WRMS |
| Signal-to-noise ratio | 56 dB (with dual cassette, peak level) |
| Frequency characteristic | 30 Hz ~ 15 kHz (Dual Cassette Used) |
| External dimensions | Width 390x Height 110x Depth 250 mm |
| Weight | 3.6kg |
Design
The TC-2140 uses an F&F (ferrite & ferrite) head with an all-ferrite structure. Its abrasion resistance is approximately 200 times that of permalloy. The tape selector is 3-stage switchable. The motor is a DC servo type with FG. The Sony limiter recording switch kicks in automatically on large input signals to prevent distortion. There is also a line/microphone selector switch, built-in auto shut-off, a lock-type pause button and an MPX filter.
Market
The Sony TC-2140 had an original price of ¥39,800 at release in 1975. An optional dust protector, the DP-28, was sold separately for ¥3,500.
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