Stereo Preamplifier - Tone Control Unit

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Documentation in acrobat format (K100)
Specifications:

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

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

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

Quantity	Price
1 – 9	$21.66
10 – 99	$20.52
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Product #		CPS143
Quantity Available:		11

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Quantity	Price
1 – 9	$20.52
10 – 99	$19.44
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Skill Level of Item:		Kit - Basic Soldering Required
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(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:		22

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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)

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1 – 9	$13.68
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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:		7