1W Stereo Amplifier Module DC Volume con

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CPS139 Stereo 1W Module (K139)

This is a 1 watt stereo amplifier module Kit using the TDA 7053A from Philips. It uses a DC voltage to control gain, hence a single gang pot or switch can be used as a volume control with minimal tracking error. It will operate from 4.5 – 18 V DC and requires no heat-sink for normal use. TPCB size 1 1/2"x1 3/4" (CPS139)

Quantity	Price
1 – 9	$13.68
10 – 99	$12.96
100 +	$11.88

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		CPS139
Quantity Available:		42

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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.

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Quantity	Price
1 – 9	$14.82
10 – 99	$14.04
100 +	$12.87

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		CPS115
Quantity Available:		10

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Quantity	Price
1 – 9	$15.96
10 – 99	$15.12
100 +	$13.86

Skill Level of Item:		(Kit - Basic Soldering Required)
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Quantity Available:		15

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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	$28.10
10 – 99	$26.10
100 +	$25.23

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		CPS100
Quantity Available:		15

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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	$13.68
10 – 99	$12.96
100 +	$11.88

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		CPS98
Quantity Available:		38