Stereo Preamplifier - Tone Control Unit

Shopping Cart

	Your Cart is Empty
	View Cart

Documentation in acrobat format (K100)

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

Tell a Friend

You might also consider these items:

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:		17

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

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:		15

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

10W Stereo amplifier module TDA2009A

The TDA2009 is a class AB dual hi-fi audio amplifier IC designed for quality stereo applications. This is a standard data book application circuit using a minimum of external components. Each channel is capable of delivering 10 Watts into 4 Ohm speakers using a 24VDC supply voltage. PCB size: 3.58" x 1.81".
(CPS88)

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

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		CPS88
Quantity Available:		43

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

50W amplifier module TDA7294

The heart of this amplifier module is a monolithic integrated circuit from SGS-Thomson, TDA7294. It is intended for use as an audio class AB amplifier in hi-fi applications. It has a wide voltage range and output current capability, enabling it to supply the highest power into both 4 Ohm and 8 Ohm loads. With the addition of a handful of parts and a suitable power supply, this module will deliver > 50W RMS into 8 Ohm @ 0.1% THD. HEATSINK NOT INCLUDED. User must supply a heatsink rated at 1.4 deg C/W.

Specifications (± 35V D.C. power supply)
Output power : > 50W RMS, 4-8 Ω load
~ 80W into 4Ω max.
~ 60W into 8Ω max.
Gain: 24 dB (30dB modification)
Input sensitivity : 1.3V for 50W, 8 ohm
0.9V for 50W, 4 ohm
(0.6V, 50W, 8Ω, G=30dB)
Input impedance : 10kΩ
Signal-to-Noise ratio : > 95 dB, (>105 dBA)
Frequency response : ~ 20Hz - 200kHz, –3 dB
Slew rate : > 10V/uS
THD : < 0.01%, 1W-40W,1kHz
< 0.1%, at 50W, 20-20kHz
IMD : < 0.01%, 1W

(CPS106)

Quantity	Price
1 – 9	$34.88
10 – 99	$32.40
100 +	$31.32

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		CPS106
Quantity Available:		5

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

1W Stereo Amplifier Module DC Volume con

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

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

Introduction to Class AB Amplifiers

Using amplifier modules is modern, quick and easy but it teaches nothing about how they work. Here is a Class AB amplifier made from individual components which will deliver several watts of power into an ordinary 8 ohm speaker. Gives hands-on learning about cross-over distortion, bootstrapping, complementary pairs, and push-pull. Detailed explanations given. Terminal strips are used for inputs and outputs. Use two 9 volt batteries. PCB Size: 2in (L) X 1.5in (W) (CPS48)

Quantity	Price
1 – 9	$17.10
10 – 99	$16.20
100 +	$14.85

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		CPS48
Quantity Available:		17

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

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:		25

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

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	$19.38
10 – 99	$18.36
100 +	$16.83

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		CPS50
Quantity Available:		10

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

Power supply voltage adj. 1.5 to 30V kit

This is a basic adjustable voltage power supply using the popular three pin regulator, LM317T. You can select any voltage between 1.5V and 30V using a potentiometer. The LM317T is rated at 1.5A so you must use a larger heat sink when drawing high currents. Unregulated AC or DC input via terminal block or power jack. Requires a suitable transformer.(CPS68)

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

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		CPS68
Quantity Available:		13