LJM Single-Ended Preamplifier Module Class A with Transistors

This small module is a pure Class A transistor preamplifier combines both an efficient pre-amplifier section based on discrete components and the possibility of adding a potentiometer.

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Reference : 12711
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23,90 €tax incl.

19,92 € tax excl.

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Shipping date: 10-12-2024.

Orders placed before 12h (GMT+1) will generally be shipped the same day (working day).

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Facturation France
SAV France

2 Years warranty

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LJM Transistors preamplifier

Class A Single-Ended

This small LJM module is a transistor preamplifier in pure Class A.It provides an efficient preamp section based on discrete components with the possibility of adding a potentiometer.. The module offers a wide dynamic range and the single-ended circuit generates little or no distortion. In terms of restitution, this translates into a warm and soft sound.

The module benefits from a good quality design, with the use of Nichicon capacitors, an adjustable LM317T voltage regulator and BC547 transistors. The volume control is done thanks to the integrated 50 KOhm logarithmic potentiometer.

On the power supply side, the module offers three-stage filtering. The first uses the LM317T regulator, the second an RC circuit and an inductor and finally the third an RC transistor filter. This provides a clean current, similar to that offered by a battery.

Technical characteristics

Specifications
Preamplifier typeTransistors - Class A
THD+N< 0.05%
SNR> 100dB
Frequency response20Hz - 20kHz at -0.05dB
Input voltageAC 20V - AC 28V
Input transformer power> 5VA
Potentiometer50K Ohm, logarithmic (RK27 compatible)
Dimensions71 x 54 x 23mm
Weight40g
Fixation holes spacing63mm / 45mm
 
Data sheet
InputScrew terminals
OutputScrew terminals
Channel2 (Stereo)
 
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LJM Single-Ended Preamplifier Module Class A with Transistors
This small module is a pure Class A transistor preamplifier combines both an efficient pre-amplifier section based on discrete components and the...

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