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VOICE CHANGER

 Documentation

mk171.jpg
Features make your voice sound like a robot add vibrato effect use the 'pitch'-buttons and make your voice sound lower or higher built-in microphone and power amplifier with volume control, just add a speaker hours of fun! for parties, plays, recordings, games, prank phone calls etc.

Specifications :
speaker / line output
on/off switch
max. output power: 1.5 W (4 ohm)
power supply: 9Vdc / 300mA
dimensions: 77 x 46 mm

(MK171)
 
Quantity
Price
1 – 9$14.36
10 – 99$13.61
100 +$12.47

  (Kit - Basic Soldering Required)  
  MK171  
  7  
 
 
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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"
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$13.11
10 – 99$12.42
100 +$11.39

  (Kit - Basic Soldering Required)  
  CPS12  
  36  
 
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Toy motor kit
 
Construct a working DC Motor. This clever kit has been delighting children for decades. All parts provided, including: 2 coils of copper wire; base; field pole; armature core; brushes; all fasteners. Instruction booklet with theory and experiments included.
Operates on 3 to 6 volt batteries (not included). (CPN135S)
Quantity
Price
1 – 9$5.45
10 – 99$5.25
100 +$4.95

  (Kit - No Soldering Required)  
  CPN135S  
  10  
 
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KC7783R PIR Detector Module (Low cost version) (Assem and tested)
 
Mechanical and electrical specs is the same as the KC7783 except for a lower cost IC (KC778B IC) package used in this KC7783R
RoHS compliant: YES.

(BB054)
Quantity
Price
1 – 9$8.98
10 – 99$7.45
100 – 999$6.75
1000 +$5.75

  (Component or Part)  
  BB054  
  80  
 
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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$16.53
10 – 99$15.66
100 +$14.36

  (Kit - Basic Soldering Required)  
  CPS105  
  11  
 
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Square Wave Oscillator LN/NE555 (inc box
 
Simple circuit to generate square waves of approximately 1Hz 10Hz 100Hz 1KHz 10KHz & 100KHz. A square wave generator is one of those pieces of equipment that has many uses in the workshop yet few hobbyists actually have. This simple kit, based on the popular 555 timer IC, generates six preset frequencies from 1Hz to 100khz. It has an operating voltage range of 5 to 18VDC and even provides visual indication of the output. The kit is constructed on a single-sided printed circuit board (PCB). The PCB size: is 78 x 50mm (3.1" x 2") and will mount on a small plastic 'Jiffy' box. (CPS111)
Quantity
Price
1 – 9$13.68
10 – 99$12.96
100 +$11.88

  (Kit - Basic Soldering Required)  
  CPS111  
  30  
 
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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$23.26
10 – 99$21.60
100 +$20.88

  (Kit - Basic Soldering Required)  
  CPS100  
  6  
 
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Electronic Music Box Engine
 
This kit is the electronic equivalent of a mechanical music box. Tunes are contained in an IC. Tunes are started by light falling on an LDR. Two music IC's provided. 8ohm 1 watt speaker included. Two IC’s are provided in this kit. M3481 contains 8 Christmas songs. M3485 contains 5 popular tunes: Hawaiian Wedding Song, Try to Remember, Aloha Oe, Love Story & Yesterday. PCB size: 43mm x 34mm (1.69inch x 1.34inch) Power supply: 3VDC (CPS104)
Quantity
Price
1 – 9$15.39
10 – 99$14.58
100 +$13.37

  (Kit - Basic Soldering Required)  
  CPS104  
  10  
 
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Mini-Vox and Relay kit
 
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$12.54
10 – 99$11.88
100 +$10.89

  (Kit - Basic Soldering Required)  
  CPS126  
  11  
 
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VOX for automatic recording 6v kit
 
This is a very sensitive, sound or voice activated switch which plugs into the REMOTE plug of a tape recorder and turns it on when it detects a preselected level of sound. If the sound continues then the switch will self trigger and remain on. Once the sound goes away then a delay in the circuit will turn off the tape recorder after about 6 seconds. It is ideal for hands free operation of a tape recorder. It has a MIC input, a delay circuit and adjustable sensitivity. Battery holder for 4xAA batteries included.
Operating voltage: 6 Volt (CPS13)
Quantity
Price
1 – 9$13.11
10 – 99$12.42
100 +$11.39

  (Kit - Basic Soldering Required)  
  CPS13  
  5  
 
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