Re: Replicas of Covox Speech Thing, FTL Sound Adapter and SiliconSoft SoundJr
Posted on 2019-03-19, 20:38
Thank you, Cloudschatze! That back side is a bit more crowded than I expected. I see: The expected 8×10kΩ resistor array Four more 10kΩ resistors Three more 20kΩ resistors Two capacitors (filtering?) A 470Ω resistor Another 100Ω resistor Another PNP transistor Four NPN transistors (MMST2222A) And …