Two channel amplifier made from old STK ic | STK403-070 simplified circuit | STK amplifier

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The amplifier made in this video is a simplification of the original classic circuit. Removed mute and standby. Input, output and speaker delay circuits have been simplified.
Music in this vedio:
Italian Morning by Twin Musicom is licensed under a Creative Commons Attribution 4.0 license. creativecommon...
Artist: www.twinmusicom...
Dance, Don't Delay by Twin Musicom is licensed under a Creative Commons Attribution 4.0 license. creativecommon...
Source: www.twinmusicom...
Artist: www.twinmusicom...

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Опубликовано:

21 авг 2024

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Комментарии : 24

@JuanManuel123ify Год назад

Estupendo trabajo compañero.....¿habría posibilidad de facilitar el esquema eléctrico en Pdf?....Un gran abrazo fraternal desde Las Islas Canarias (España).......

@stelectronic645 Год назад

Thanks for watching. Sorry, I only have jpg, no pdf. You can get the circuit in the video.

@stelectronic645 Год назад

5:30

@mmohamedfaisal4230 Год назад

Super

@AgusTechnisi79 Год назад

Good

@konstantinstep4enko429 6 месяцев назад

Hi, the video turned out very cool! Could you please tell me if this scheme is suitable for stk403-100 and stk403-130?

@stelectronic645 6 месяцев назад

This solution is also applicable to STK403-090/100/120/130. It should be noted that these chips have one more pin. Pin 1 is -pre vcc. Pin 2~pin 15 correspond to pin 1~pin 14 of STK403-070.

@konstantinstep4enko429 6 месяцев назад

@@stelectronic645 Thank you very much, this will help me in assembling on 403-100, 403-130, 404-130s

@latifjonqlichev7789 11 месяцев назад

I have one such chip. But I don’t know if it’s working properly or not. How can I check its serviceability?

@stelectronic645 11 месяцев назад

It is generally difficult to measure the quality of thick film integrated blocks with a multimeter. Damage to the power amplifier IC is usually caused by breakdown of the final push-pull transistor. You can use a multimeter to measure the resistance value between the output terminal and the power supply terminal to roughly determine whether it is damaged. If the resistance is found to be very small, it is basically broken.

@danielugwa6517 Год назад

Thank you sir please can you please show me how to make mini amplifier nd circuit working on 4.2v or 12v thanks

@leonardbituin3087 Год назад

Power💪

@estebanmadrigal6567 Год назад

hola buenas noches ,olle puedo utilisar el STK402-070N

@stelectronic645 11 месяцев назад

Gracias por su atención No se puede reemplazar directamente. Aunque los dos circuitos son básicamente iguales, debido a que los pines del módulo amplificador de potencia son diferentes, deben ensamblarse de acuerdo con la definición de pines.