Preamplifier

Shopping Cart

	Your Cart is Empty
	View Cart

Preamplifier

Click here for documentation in pdf format

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

Skill Level of Item:		Kit - Basic Soldering Required
Product #		CPS98
Quantity Available:		27

Tell a Friend

Related Items are:

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

Skill Level of Item:		Kit - Basic Soldering Required
Product #		K1803
Quantity Available:		0

..........................

Electret Microphone 10mm Diameter 3Pin

HB273

Quantity	Price
1 – 9	$1.46
10 – 99	$1.23
100 +	$1.11

Skill Level of Item:		Component or Part
Product #		HB273
Quantity Available:		3

..........................

SUPER STEREO EAR KIT (Out of Stock)

Stereo audio amplifier boosts sound 50 times. Great for the-hearing impaired (e.g. when watching TV), as a gadget, science project, … With volume control and on/off switch.

Specifications:

power supply: 3 1.5V AA battery (not included)
dimensions: 2.4" x 2.1" x 1.7"
(MK136)

Quantity	Price
1 – 9	$8.39
10 – 99	$7.95
100 – 999	$7.72
1000 +	$6.89

Skill Level of Item:		Kit - Basic Soldering Required
Product #		MK136
Quantity Available:		0

..........................

IR Cut-switch Device 5V (Device B)

IR cut filters are great for day time images, because the sunlight does not cause a pink hue in the image. However they do not work at night because it blocks out light from an IR light illuminator. The same it true in reverse, without a IR cut filter the night time images turn out very good but the daytime images have a pink discoloration. This cut switch allows the IR filter to be turned on and off. The IR Cut Switch filters out intensive light to create more beautiful and natural image color in either day or night.

NOTE: Comes with driver board.

Rated Current: 0.556A (AT input 5.0V)
Power Current: 2.78w (5.0 DCV Coil)
DC Resistance: Excite resistance 9Ω±10% (at 20℃)
Operating Voltage: Close → Open : 5.0V;200ms
   Open → Close : 5.0V;200ms.
Movable Temperature Range: -5℃~+50℃
Storage Temperature Range: -20℃~+60℃
Dimension: 27.55X27.5X10.6mm
AR Glass: AR Glass Specification:
   Glass shape:8.4*7.6mm(t=0.40mm)
   Wave Length(nm):400~1100nm
   Transmission(%):T>93%

Blue Glass: Blue Glas Specification:
   Glass shape:8.4*7.6mm(t=0.55mm)
   Wave Length(nm):625±10nm
   Transmission(%):T=50%

Quantity	Price
1 – 9	$24.81
10 – 99	$23.04
100 +	$22.27

Skill Level of Item:		Assembled and Tested
Product #		BB271
Quantity Available:		15

..........................

f6.0mm F1.6 Lens ONLY - as found on C328/C329 camera (BW) (no IR cut filter)

PLEASE NOTE: this is only the lens (NO HOLDER). Lens specs: F/No 1.6 f= 6.0mm FOV = 36 deg diagonal IR cut filter : None (BB224)

Quantity	Price
1 – 9	$10.95
10 – 99	$9.95
100 +	$8.95

Skill Level of Item:		Component or Part
Product #		BB224L
Quantity Available:		11

You might also consider these items:

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	$13.68
10 – 99	$12.96
100 +	$11.88

Skill Level of Item:		Kit - Basic Soldering Required
Product #		CPS27
Quantity Available:		114

..........................

audio amplifier 1W (LM386) kit

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	$13.68
10 – 99	$12.96
100 +	$11.88

Skill Level of Item:		Kit - Basic Soldering Required
Product #		CPS17
Quantity Available:		9

..........................

RE200B-P Pyroelectric Infrared Sensor

(BB083)

Quantity	Price
1 – 9	$1.76
10 – 99	$1.65
100 – 999	$1.45
1000 +	$1.35

Skill Level of Item:		Component or Part
Product #		BB083
Quantity Available:		231

..........................

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	$14.25
10 – 99	$13.50
100 +	$12.38

Skill Level of Item:		Kit - Basic Soldering Required
Product #		CPS97
Quantity Available:		10

..........................

1/8" (3.5mm) STEREO PANEL-MOUNT JACK, NICKEL-PLATED

Specifications:

type: stereo
solder connections
with stereo insert switch
in housing

Quantity	Price
1 – 9	$0.53
10 – 99	$0.45
100 – 999	$0.39
1000 +	$0.35

Skill Level of Item:		Component or Part
Product #		CA017
Quantity Available:		97

..........................

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

Skill Level of Item:		Kit - Basic Soldering Required
Product #		CPS100
Quantity Available:		12

..........................

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	$20.52
10 – 99	$19.44
100 +	$17.82

Skill Level of Item:		Kit - Basic Soldering Required
Product #		CPS105
Quantity Available:		7

..........................

6 - 10W Stereo Ampl Mod using TDA2005

Kit 143 is a class AB stereo audio power
amplifier designed for quality hi-fi
applications using a TDA2005 module. It is
easy to construct and has a minimum of
external components. The module has output
current protection and thermal protection. This
is the data book circuit which produces an
excellent sound. The supply voltage required
for this kit is 8 - 18V DC at 1 to 2 Amps.

PCB size 3"x1 3/4"(CPS143)

Quantity	Price
1 – 9	$21.66
10 – 99	$20.52
100 +	$18.81

Skill Level of Item:		Kit - Basic Soldering Required
Product #		CPS143
Quantity Available:		11

..........................

KC7783 PIR Detector Module (Assem and tested)

This is a fully assembled and tested miniature PIR module (KC7783 with KC778B IC) with only 3 connections: Power, Ground & Output. Rated for 4 - 12VDC input power. Uses RE200B PIR sensor. Output is an active high pulse of approx. 0.5 seconds and remains active as long as there is motion. Range up to 10 feet. PCB size: 35mm x 25mm(CPS76)

Quantity	Price
1 – 9	$9.45
10 – 99	$7.95
100 – 999	$6.95
1000 +	$5.45

Skill Level of Item:		Component or Part
Product #		CPS76
Quantity Available:		904