EMT 140-TS
Not much is documented about the EMT 140-TS outside of period equipment directories. The record shows a stereo plate reverberation unit - a variant of the classic EMT 140 plate, fitted with a manual control system. A Studio Sound (June 1973, p.45) listing describes how it works. A steel plate is paired with a highly porous suspended material. That material can be swung toward or away from the plate over an extreme distance ratio of roughly 1:30, which varies the reverberation time. A hand wheel on the unit controlled the motion. On the companion remote-control model, the EMT 140 FB-TS, the control sat at the studio console itself, with the reverb time shown remotely on a meter.
The unit was substantial. The same source gives the following specifications:
- Weight (manual control, without remote): 170 kg (≈375 lb)
- Weight (with remote control): 190 kg (≈419 lb)
- Dimensions: 2.4 × 0.34 × 1.3 m (approx. 94.5 × 13.4 × 51.2 in)
- Ordering codes: EMT 140 TS (manual control), EMT 140 FB-TS (remote control)
Beyond this catalog entry, no production years, original price or further technical specifications have been confirmed. The EMT 140 series as a whole was widely used in professional studios from the late 1950s onward, and the TS variant likely represents a later refinement aimed at remote operation. The surviving documentation for this specific model is thin.
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