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Power supply to LM338K, 5A / 1.2-25V

For the novice amateur radio is always a need for a simple, regulated power supply. Power supply circuits in electronic literature or on the Internet quite a lot of open spaces. From very simple to extremely complex. I once found a very rational decision on the choice of scheme… Continue Reading

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Types of electrical signals

D.C, It is a permanent electrical signal. D.C (voltage), or a constant signal - does not change for a long time, the amplitude and sign electrical signal. DC sources are conventional galvanic cells – battery, batteries, вторичные источники питанияContinue Reading