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Kits and Modules > Audio Pre/Power Amplifiers >  Returning Customers
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VOLUME AND TONE CONTROL - PREAMPLIFIER

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Specifications:
  • supply voltage: 2 x 12VAC / 100mA
  • frequency response: 3Hz - 500kHz (-3dB)
  • standard amplification: x1
  • signal to noise ratio: 98dB
  • harmonic distortion: < 0.005% (@1KHz)
  • maximum output: 5V RMS
  • tone control: 
  • + and -15dB @ 20Hz
  • + and -15dB @ 15kHz
  • Input impedance: 50k ohms
  • dimensions: 4.1 x 2.75"

k8084.jpg

When using one of our amplifiers (big or small), you always need a volume control and preferably also a tone control.
This kit comes complete with all input / output connections and potentiometers.
Furthermore it is possible to amplify or attenuate the input signal.

Features:
  • stereo volume control
  • stereo Baxandall bass and treble control
  • bass and treble potentiometers with centre click
  • customizable attenuation or amplification
  • complete with knobs
 
Quantity
Price
1 – 9$29.65
10 – 99$27.54
100 +$26.62

  Kit - Basic Soldering Required  
  K8084  
  1  
 
 
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Click here for specs, downloads and more pictures.
Preamplifier
 
A preamplifier to use with an electret or other microphone to boost the signal before feeding into an amplifier. Simple and easy to build. PCB Size: 1.75" x 1.25". Power supply: 6 to 12VDC (Electret microphone Included)
Quantity
Price
1 – 9$13.68
10 – 99$12.96
100 +$11.88

  Kit - Basic Soldering Required  
  CPS98  
  27  
 
..........................
Click here for specs, downloads and more pictures.
UNIVERSAL MONO PRE-AMPLIFIER  (Out of Stock)
 
This kit has been developed as pre-module for a number of audio applications where there is insufficient input signal. Applications as a microphone pre-amplifier or for level correction. Specifications power supply: 10-30V DC / 10mA output impedance: 1Kohm adjustable output level: max. 40dB frequency range: 20Hz to 20kHz ± 3dB max. input signal: 40mV PCB dimensions: 1.2" x 1.7" options for power supply: K1823 (K1803)
Quantity
Price
1 – 9$11.54
10 – 99$10.94
100 +$9.99

  Kit - Basic Soldering Required  
  K1803  
  0  
 
..........................
Click here for specs, downloads and more pictures.
Stereo Preamplifier - Tone Control Unit
 
This is a preamplifier and tone control unit
which will make a useful addition to any
of our power amplifier kits. It is extremely
easy to construct due to the use of a special IC,
the Philips TDA 1524A. This contains all the
circuitry required to provide up to 20 dB of
voltage gain, +/-15 dB of bass and treble
control, channel balance, and a switchable
loudness contour. 
(CPS100)
Quantity
Price
1 – 9$28.10
10 – 99$26.10
100 +$25.23

  Kit - Basic Soldering Required  
  CPS100  
  12  
 
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