Power Supply
Click here for general information about power supplies for the audio amplifier modules.

K4 - Basic Power Supply Module Price Photo
Batteries soon become an expensive way to power your electronic kit and electronic games. This is a basic power supply in a box using two 7805 regulators. Input up to 20V AC from a transformer or power pack. Two regulated outputs are available - one fixed at 5V, the other variable. Good introduction to three terminal regulators.

K60 - Regulated Power Supply Price
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, 1810, 7812, 7815, 7818 & 7824. Large heat-sink provided. PCB = 64mm x 40mm (2 1/2" x 1 1/2")

K68 - Variable Power Supply Module Price Docs
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.

K83 - Universal Power Supply Price Docs
Put in your own 78xx and 79xx 3-pin regulators (TO-220 type) to give fixed positive and negative voltage outputs. Supplied with 2 small heatsinks. Requires centre-tapped AC voltage source.
Dimensions = 78mm x 43mm

K114 - Dual Unregulated Power Supply module Price Photo Docs
Many amplifiers require a dual (+/-) DC power supply. This simple kit does just that, with all the components mounted on a small PCB to avoid the usual spaghetti-wired mess. Four on-board 100V/3A diodes plus four 2200uF/50V electrolytics provide an unregulated +/- DC supply from a center-tapped transformer.

K124 - Positive Adjustable Power Supply module Price Photo Docs
A compact, easy to build and use, positive variable power supply module. It is ideal for powering any application requiring a DC supply at current levels up to 1.5 amperes. Can be combined with Kit 125 to create a dual-rail supply.

Features:

K125 - Negative Adjustable Power Supply module Price Docs
A compact, easy to build and use, negative variable power supply module. It is ideal for powering any application requiring a DC supply at current levels up to 1.5 amperes. Can be combined with Kit 124 to create a dual-rail supply.

Features:

K135 - DC/DC Converter, 9-12V to 17V Price Docs
Most of the programmer kits (K81,96,117,119,121,122,123) require a DC input voltage of at least 16.5V minimum. This is not usually a problem as most 12V "plug pack" power supplies are unregulated and will supply this voltage. However many countries, especially in Europe, only have regulated 12V supplies.This kit increases takes a 9-12V DC input and outputs 17VDC/100mS nominal. This is enough to power the programmer kits.


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