audio amplifier 1W (LM386) kit

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Documentation in acrobat format (K17)

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

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		CPS17
Quantity Available:		21

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Input trigger voltage: 2.3 - 2.5V (min)
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Power handling: 220W @ 110V or 500W @ 250V
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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	$14.82
10 – 99	$14.04
100 +	$12.87

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		CPS12
Quantity Available:		40

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TDA7052 Amplifier Module 1W (Out of Stock)

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	$11.40
10 – 99	$10.80
100 +	$9.90

Skill Level of Item:		(Kit - Basic Soldering Required)
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Quantity Available:		0

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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	$10.83
10 – 99	$10.26
100 +	$9.41

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		CPS98
Quantity Available:		24

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Speaker Round 3 inch 8 ohm 1 watt

Diameter: 76mm (3 inch)
1 Watt
8 Ohm

Quantity	Price
1 – 9	$3.65
10 – 99	$3.46
100 +	$3.17

Skill Level of Item:		(Component or Part)
Product #		PB244
Quantity Available:		75

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20 second voice recorder/playback module (A93010/A96010)

PLEASE NOTE: A96010 or A93010 is supplied depending on availability. Currently only A93010 is available and is the one that is been sold. A96010 is not currently available. The small size is because the IC is in Chip-on-board form. One button is pushed down to record the message. The electret microphone is on the board. The LED turns on during this time. The other button just has to be momentarily pressed to replay the message. A second momentary press during playback will stop the playback. Sampling rate is 4K. All you have to add is the speaker (not included) and 5V DC power (not included). The record play time is determined by the 52K resistor. If you change it to 89K you will get 30 seconds but at a reduced sampling rate. Operating current 25mA. Standby current 10 uA. Size: 34 x 23 x 11 mm. The module comes supplied as you see it in the photo.

OPTIONAL ITEMS (Not included):
2 x (BB089) connector cable to connect the voice recorder to a speaker and power source.
1 x (PB244) Speaker
1 x Battery holder that can hold either 4 x AAA or 4 x AA or 4 x C or 4 x D cells. See our battery holders.

(A96010 & A93010)

Quantity	Price
1 – 9	$6.60
10 – 99	$5.95
100 – 999	$4.95
1000 +	$3.95

Skill Level of Item:		(Assembled and Tested)
Product #		A96010
Quantity Available:		128

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2W amplifier module LM380

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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

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		CPS97
Quantity Available:		13

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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	$24.71
10 – 99	$22.95
100 +	$22.19

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

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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	$17.67
10 – 99	$16.74
100 +	$15.35

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		CPS105
Quantity Available:		6

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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

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		CPS115
Quantity Available:		19