Mini 50 mW audio amplifier with only 2 transistors at 6V/25 mA demo & schematic скачать в хорошем качестве

Mini 50 mW audio amplifier with only 2 transistors at 6V/25 mA demo & schematic

Schematic & demo of a very simple 2 transistor amplifier with a BC 547 NPN and a BC 557 PNP that can give out 50 Milliwatt audio with good quality to a (good quality, say: big) loudspeaker box. In such a case (good quality big audio box) the (say 50 mW) sound can be heard all over the living room. Adaption/correction: please note that in a restaurant a general audio level (everywhere on the place) of 200 mW/300 mW can be enough for background music use. Circuit is also usable as a headphone amplifier (4-8-16 Ohm), for stereo 2 x must be made. The circuit was made for 6 Volt, takes 25 mA constantly, perhaps not usable for battery purposes because of that 25 mA constant current. Anyway: a surely usable mini audio amplifier for all kinds of purposes with a good audio sound, set by the biasing to get the purest audio sound out via that first potentiometer of 1 M. Try (e.g., no guarantee) lower supply voltages than 6 Volt by changing that bias. There are more than 1000 Video’s on my YT channel. I only do analog electronics: audio amplifiers, analog measuring devices, radio circuits, many Shortwave radios, many oscillators HF and audio, other audio & shortwave circuits. Also many (test) generators for all kinds of waveforms, both in the audio range and HF. Also simple “switch” circuits like the Schmitt triggers acting on different input voltages, 555 circuits and circuits of basic electronics issues like “Ohms law”, resistance properties, capacitance properties, the capacitors testing process, electronic “matching” in audio circuits and audio amplifiers, audio pre amplifiers, microphone amplifiers, etc. In all cases you find the schematic inserted in the video. When you have questions about (certain analog) electronic circuits and how to make them: go to my Channel trailer (Radiofun232 on You Tube) and go to the “looking glass”. Type there the keywords that you want/need like: “power supply”, audio amplifier, capacitor tester, oscillator, radio, shortwave, shortwave radio, or any keyword you like to find the essential info & schematics on my YT channel. You can contact me via email when you have questions about my published circuits. I always ask for a picture of what you have made + a problem description; I ask to communicate. Sorry that I am so strict now (since 15 may 2021). It has to do with disappointing reactions in the recent past of people that asked “help” (even fake help) and did not react afterwards or asked questions when they knew the answer. My You Tube channel trailer is here:    • Radiofun232 on YouTube, find working & tes...   When you search, search always “NEWEST FIRST” to get the right overview. You can also search via the “looking glass” on my Channel trailer via keywords like ”audio”, “radio”, “amplifier”, “filter”, “Shortwave”, “transistor”, “FET”, “oscillator”, “generator”, “switch”, “schmitt trigger” etc; so the electronic subject you are interested in. My books about electronics & analog radio technology are available via the website of "LULU”, search for author “Ko Tilman” there. https://www.lulu.com/search?adult_aud... I keep all my YT videos constant actual, so the original video’s with the most recent information are always on YouTube. Search there, and avoid my circuits that are republished, re-arranged, re-edited on other websites, giving not probable re-wiring, etc. Some persons try to find gold via my circuits. I take distance from all these fake claims. I cannot help that these things happen. Upload 4 August 2021. In my book "Schematics 2, audio amplifiers and loudspeaker boxes" there is much more info about audio. You can buy it via the LULU website search for author "Ko Tilman"" there.