What is stereo?




There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.



H.H. Scott '59





Lenco T 30


 The T 30 is a highly sensitive AM/FM tuner which has been developed according to the latest technical knowledge. It is attractive not only because of its modern and professional looking design, but also because of the convenient arrangement of its operating controls. You should read the instructions for use carefully before using it for the first time.
The T 30 is available with either an RCA-phono socket or a DIN socket for connection to the audio frequency signal.

Specifications
FM Section
Antenna Connections: 
Symetrical : 240 - 300 Ω
Asymetrical : 60 - 75 Ω
Tuning Range:  86 - 109 MHz
Sensitivity (mono,60 Ω-input, 26 dB S/N, Δ f = 40 kHz):  1,8 µV
Limiting Point:  1,5 µV
Distortion, Mono:  ≤ 0,2%
S/N Ratio (Mono, input 1 mV):  ≥ 55 dB
Capture Ratio:  1,5 dB
IF Rejection:  ≥ 90 dB
Image Rejection:  ≥ 80 dB
Frequency Response:  20 - 15,000 Hz
Channel Separation:  ≥ 40 dB
Switching Point:  5 µV
Output (at 1 kHz, Δ f = 40 kHz):  300 mV
AM Section
Tuning Range:  525 - 1650 kHz
Sensitivity (S/N 20 dB):  20 µV
Distortion:  1%
Image Rejection:  ≥ 50 dB
S/N Ratio:  ≥ 50 dB
Power Supply:  AC 220 V 50/60 Hz
Power Consumption:  15 W max.
Dimensions (W x H x D):  430 x 132 x 372 mm
Weight:  7,5 kg


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