danielsmusic
New Member
what is the the unit "HFE" is it the sencitivity at the bass of a transistor
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danielsmusic said:i was only asking because i need a switching biplar transistor for a stepper motor driver. just run from a 4017 chip.
Nigel Goodwin said:But as with other people, I'm slightly confused by the choice of a 4017?, it doesn't appear to be very suitable?.
danielsmusic said:i used switching transistors (very high gain)
danielsmusic said:i have used tip41's it does power the motor but the sequence it wrong it just goes back and forward
danielsmusic said:sorry,
but when i connected each wire to a switch and did the same sequence as the 4017 it worked fine, a little slow.
so i just thought it mite work with a 4017.
does anybody have any suggestions.