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audio amplifier 1W (LM386) kit

Documentation in acrobat format (K17)

cps17.jpg
A kit module designed to be used as a building block in a larger project. The semiconductor LM386 is a general purpose power amplifier designed for use in low voltage applications. Gain may be set between 20 and 200. LM386 data sheet included. Supply voltage: 4 to 12V(CPS17)
PCB size: 1.5in x 1.25in (38mm x 31mm)
 
Quantity
Price
1 – 9$10.83
10 – 99$10.26
100 +$9.41

  (Kit - Basic Soldering Required)  
  CPS17  
  4  
 
 
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Audio to light modulator kit
 
A music-to-light modulator is a circuit which controls the intensity of one or more lights in response to an audio input. The kit is ideal to give the rhythm to any party or disco without much money. Very safe operation as it uses an opto-coupler as a coupling device between the audio and the mains controlling stages of the circuit.
Input trigger voltage: 2.3 - 2.5V (min)
Operating voltage: 110 or 250 VAC
Power handling: 220W @ 110V or 500W @ 250V
PCB size: 2.16" x 1.63" (To help in the decision to select an enclosure keep in mind that the heat sink used in the kit is about 1" tall.)
PLEASE NOTE, THIS KIT USES 120V MAINS ELECTRICITY AND SHOULD NOT BE ATTEMPTED BY ANYONE WITHOUT THE PROPER SKILL LEVEL. THIS SHOULD ALSO BE BUILT IN A SUITABLE PLASTIC ENCLOSURE.
(CPS12)
Quantity
Price
1 – 9$14.25
10 – 99$13.50
100 +$12.38

  (Kit - Basic Soldering Required)  
  CPS12  
  31  
 
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TDA7052 Amplifier Module 1W
 
A 1W power amplifier building block designed to be part of a larger project. Ideal as a low power battery operated amplifier (from 3 to 15V) driving an 8 ohm speaker. The Philips TDA7052 is a general purpose amplifier. No heatsink needed. Short circuit protected. PCB size: 1.2" x 1.2" (30mm x 30mm)
Quantity
Price
1 – 9$10.83
10 – 99$10.26
100 +$9.41

  (Kit - Basic Soldering Required)  
  CPS27  
  17  
 
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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$9.69
10 – 99$9.18
100 +$8.42

  (Kit - Basic Soldering Required)  
  CPS98  
  36  
 
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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.
Specification
D.C. Input : 15V DC supply or 12V DC battery. 50 mA min.
Maximum output : > 3 V RMS
Maximum input : > 300 mV, G = 20 dB
> 3V RMS, G = 0dB. Input Z > 10 k ohm. Output Z < 300 ohm
Frequency resp. : < 10 Hz to > 50 kHz + / – 1 dB
THD at 1kHz : < 0.1 % at 1V output
S/N ratio : > 80 dB, G = 0 dB
Bass boost/cut ~ 15 dB at 50 Hz
Treble boost/cut ~ 15 dB at 15 kHz
PCB size: 4 inches x 2 1/4 inches. (CPS100)
Quantity
Price
1 – 9$24.23
10 – 99$22.50
100 +$21.75

  (Kit - Basic Soldering Required)  
  CPS100  
  14  
 
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2W amplifier module LM380
 
This is a very simple amplifier built around the LM380 IC. It can deliver up to 2W into an 8 ohm speaker depending on the supply voltage. Instead of using a heatsink or heat fins the heat produced is dissipated through the center pins of the IC into the copper overlay left on the PCB. If you do require a sustained output of more than ½ watt, you will need to add a heatsink (not included). The IC solders directly to the PCB.
PCB size: 1.75in x 1.75in (45mm x 45mm)

Power output:
> 2 Watt max. (4-8 ohms, 20V)
> 1 Watt max. (4-8 ohms, 12V)
> 0.5 Watt RMS continuous

 
Quantity
Price
1 – 9$12.54
10 – 99$11.88
100 +$10.89

  (Kit - Basic Soldering Required)  
  CPS97  
  14  
 
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18W BTL Audio Power Amplifier
 
This kit contains the essential components to build a low voltage, high power mono 18W Bridge Tied Load (BTL) amplifier module using the Hitachi HA13118. The circuit is straight out of the data sheet. Only a few external passive components are required to make the module. The IC contains surge protection circuits and thermal shutdown circuits. The speaker and cables are not included. (CPS105)
Quantity
Price
1 – 9$17.10
10 – 99$16.20
100 +$14.85

  (Kit - Basic Soldering Required)  
  CPS105  
  11  
 
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1W Stereo Amplifier Module
 
Uses 2 LM386N-1 for a stereo amplifier. Ideal for walkman and other battery powered items. 4V - 12V DC. Instructions PCB and components supplied.

This is a 1 watt per channel, stereo amplifier module Kit using two LM386N IC’s from National Semiconductor. It is basically two of our CPS17’s on a single PC board, with a dual gang pot. It will operate best from 6-12V DC and will work well from a battery since the quiescent current drain is only 10 mA. It requires no heat sinks for normal use. The input and output are both ground referenced. Maximum output will be obtained with a 12V power supply and 8 ohm speaker, however it is particularly suitable for driving headphones from a supply as low as 4V. Speakers are not supplied. They should be rated at 3W or over. PCB size 63mm x 40mm (2.5" x 1.5"). (CPS115)
Quantity
Price
1 – 9$12.54
10 – 99$11.88
100 +$10.89

  (Kit - Basic Soldering Required)  
  CPS115  
  17  
 
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Mini-Vox and Relay kit  (Out of Stock)
 
The idea behind a VOX (voice activated switch) is that instead of the user pressing a switch to activate a relay, the sound of the users voice itself activates the relay. This gives hands-free control over devices like tape recorders. Power supply needed: 12VDC center positive 2.5mm jack. Electret microphone to pick up the sound is included. PCB size: 44mm x 48mm (1.73inch x 1.89inch).
(CPS126)
Quantity
Price
1 – 9$13.11
10 – 99$12.42
100 +$11.39

  (Kit - Basic Soldering Required)  
  CPS126  
  0  
 
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25W amplifier module LM1875
 
Kit contains the essential components to build a HiFi amp module using the LM1875 IC. See the documentation for full specifications. Heatsink, speakers and cables are to be supplied by the user.

This kit contains the essential components needed to build a high fidelity amplifier module using the National Semiconductor LM1875 IC. With the addition of a handful of parts and a suitable power supply, this module will deliver 25W RMS into 8 ohms @ 1% THD. PCB dimensions are a tiny 53 x 50mm (2.1” x 2”). Heatsink, power transformer, speaker and cables are not included.(CPS50)
Quantity
Price
1 – 9$15.96
10 – 99$15.12
100 +$13.86

  (Kit - Basic Soldering Required)  
  CPS50  
  5  
 
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