С аналоговым Микро приемником BluArrow 40Mhz BA-R3P6 H/T V3 FM 6-channel 5,3гр. и сервами 2,5 гр. и 3,7 гр. работает напрямую от одной литиевой банки 100 м/аЧ. Для зального тренера скорости отработки и дальности хватало.
Вот серво, вот регуль.Всё работает от 1S. Насчёт приёмника - скорее всего Спектрум.
У нас в Ростове на дону из микросхем которые нужны почти нету
LM 2623 купил бы да нету их в России
Так посмотрите я выше целый список альтернативных вариантов выложил.
Из мелких чипов - точно MAX1674-MAX1676, на остальные лень повторно даташиты пересматривать.
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