Power supplies

Any self-respecting radio amateur, for a long time involved in translating creative ideas into reality, or simply collecting crafts on his desk - home-made products come to a sensible decision - to have their own,

An electronic power supply unit is proposed for powering a 6-volt (4 finger-type batteries) radio from a single 1.5-volt battery. The proposed power supply unit (PSU) of the radio is made

The laboratory PS-1502DD laboratory power supply with the main advantages of China is cheap and provides voltage, a good case and very accurate digital voltmeter and ammeter. I use from charging

How to convert a cordless screwdriver to a network one? The batteries on the screwdriver become unusable after about two years. The engine is still quite working, it's a pity to throw it away. Replacing both

Another way to create a mobile compact device for charging gadgets from USB. The device has a convenient compact housing and runs on a Crohn battery. Materials: -USB car charger

A great example of creating the simplest device for charging a phone, player or any other gadget with a usb - connector for a power cable from the finger batteries. Materials for creating

This article will be disassembled in detail and shown using an example of how and from which details a simple laboratory power supply can be assembled. Quite often, radio amateurs face the problem of getting

This article talks about the modification and refinement of a car charger.The author already had experience in the assembly of primitive pulse chargers, as a child he collected one of

In this article, the author decided to make a solar usb-charge for the phone. This device will help charge the phone where there is no electricity. For the manufacture of this device, the author needed: -

This charger for finger batteries is distinguished by its unusual simplicity and ease of assembly. It is based on the use of solar panels, due to which there is a charge

In a previous article, we already talked about how to make a USB charger on a solar battery. However, that design has one significant drawback: charging can only be done in

The author came up with the idea to create a charger for his phone based on a solar battery. Typically, charging a mobile phone requires a constant voltage of 5 V. Voltage

A power supply is a necessary thing in the arsenal of any radio amateur. And I propose to assemble a very simple, but at the same time stable circuit of such a device. The scheme is not difficult, but a set of parts for assembly

This device is indispensable in nature, or on a long trip when you need to urgently charge your phone / camera. It does not take up much space, but it can really help out at the right time. Moreover,