Heatsink TO220 screw mount 20K/W

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HB262

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Product #		HB262
Quantity Available:		14

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C100NC

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40 pin Univ ZIF Socket wide slot

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Screw mounting holes for more reliable operation.
(BB007)

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1 – 9	$12.95
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DS1820 TO92 IC

The DS1820 Digital Thermometer provides 9–bit temperature readings which indicate the temperature of the device. Information is sent to/from the DS1820 over a 1–Wire interface, so that only one wire (and ground) needs to be connected from a central microprocessor to a DS1820. Power for reading, writing, and performing temperature conversions can be derived from the data line itself with no need for an external power source. Because each DS1820 contains a unique silicon serial number, multiple DS1820s can exist on the same 1–Wire bus. This allows for placing temperature sensors in many different places. Applications
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(BB042)

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1 – 9	$8.99
10 – 99	$8.45
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Toy motor kit

Construct a working DC Motor. This clever kit has been delighting children for decades. All parts provided, including: 2 coils of copper wire; base; field pole; armature core; brushes; all fasteners. Instruction booklet with theory and experiments included.
Operates on 3 to 6 volt batteries (not included). (CPN135S)

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1 – 9	$5.45
10 – 99	$5.25
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Skill Level of Item:		(Kit - No Soldering Required)
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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)

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1 – 9	$23.26
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Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		CPS100
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Two Unipolar Stepper Driver-Parallel Port

Connects to the PC parallel port and will drive two stepper motors up to max. 3A each. All contained in an RS232, extended D-shell case. Software will accept 4 inputs from external switches. Software will also single step motors. Three run modes supported. All are supplied except the stepper motors. The kit itself does not require any power source. The stepper motors require power. A DOS based program written specifically to drive stepper motors is included on disk, complete with C source code. (CPS113)

Quantity	Price
1 – 9	$21.32
10 – 99	$19.80
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Skill Level of Item:		(Kit - Basic Soldering Required)
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