PicoMite VGA check

Author	Message
robert.rozee Guru Joined: 31/12/2012 Location: New Zealand Posts: 2428	Posted: 01:24pm 19 Jan 2022         matherp said     Quote   but believe it should give good results. What's the voltage across a BJT transistor when it is turned on? Seems to me you will be pulling the BAT141 to 0.7V i.e. zero impact you are confusing Vbe with Vce. Vce(sat) of a BC547 is around 90mV. there may be better choices that yield an even lower value. as i said, i've not tried the circuit. addendum: have a dig around here: https://www.onsemi.com/products/discrete-power-modules/general-purpose-and-low-vcesat-transistors cheers, rob   :-) Edited 2022-01-19 23:26 by robert.rozee