Power supply voltage adj. 1.5 to 30V kit

Shopping Cart

	Your Cart is Empty
	View Cart

Documentation in acrobat format (K68)

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	$12.54
10 – 99	$11.88
100 +	$10.89

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		CPS68
Quantity Available:		15

Tell a Friend

You might also consider these items:

Regulated Power Supply

Kit accepts an unregulated AC or DC input. The user supplies a standard 3 pin voltage regulator from 5 volts (using a 7805) to 24 volts (7824). The full range of possible regulators is: 7805, 7806, 7808, 7810, 7812, 7815, 7818 & 7824. Large heat-sink provided. PCB size: 64mm x 40mm (2 1/2" x 1 1/2")(CPS60)

Quantity	Price
1 – 9	$10.83
10 – 99	$10.26
100 +	$9.41

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		CPS60
Quantity Available:		17

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

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

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

Positive Adjustable Power Supply Module

Compact positive adjustable power supply +/- 1.5V to 35V depending on input power source. On-board heatsink. It is ideal for powering any application requiring a DC supply at current levels up to 1.5A
FEATURES:
· Output reverse polarity and back-voltage protection
· LED power on indication
· On board heatsink for IC regulator
· Variable output voltage
· AC or DC input voltage
· Low noise (uses linear regulator)
· Screw terminals for input, output and LED indicator
· PCB size: (84 x 37 mm) (3.1" x 1.5")
This kit can be combined with Kit CPS125 to create a dual-rail supply. The kit is constructed on a single-sided printed circuit board (PCB).
(CPS124)

Quantity	Price
1 – 9	$15.39
10 – 99	$14.58
100 +	$13.37

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		CPS124
Quantity Available:		9

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

Relay Board for 2 x 1A Miniature Relays

Quite often the hobbyist needs to use a relay. For example the output of a PIR has output pads for the alarm signal which must be connected to a remote switching device. To fill needs like these we have two kits which are just a relay, PCB and terminal blocks for the input/output signals. There are many relay pin-outs & drive voltages to select from. We have standardized on two 12V relays from Goodsky Relay Board for 2 x 1A Miniature Relays(CPS45)

Quantity	Price
1 – 99	$10.83
100 +	$9.41

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		CPS45
Quantity Available:		11

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

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