mybuickskill6979
New Member
i have sketch-up cad type drawing stuff. let me see i'll draw it up right now!!
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AllVol said:hey, buickskill
When you get your transistors from RS (see above for part #) go by the attached schematic.
NOTE: If you are using 32 vdc supply, change the resistor between V+ and the LED to one of about 1500 ohms (brown-green-red striped) and about 15,000 (brown-green-orange) on the base. You would really be better off to pick up Radio Shack part #270-412, a three AAA battery holder ($1.69). This will give you 4.5 volts, enough for most experimental projects.
It is hard to read the circuit as it is out of focus. Does your camera have macro function?mybuickskill6979 said:i don't know why all my pics come oout fuzzy today but thats the schematic of what i have in the pic. if i switch the collector and emitter around i get pretty much the same results. and as long as theres resistance on the base it works if not nothing happens!!
G'day AllVol,AllVol said:Hi Len
I used 5 volts for supply in my schematic to your 12, thus the difference. I also adjusted for his 32 volts, or at least I think that's what he shows in his fuzzy picture.
Regards,
AllVol
That transistor should be adequate for your experimenting.mybuickskill6979 said:i just got back NPN 2n3904 trans they didn't have the one mentioned earlier so i got this one!!
Yes, and I suspect that some don't bother to come back and ask for more help, ie. as you said, assume the circuit is wrong.audioguru said:I think RadioShack gets "seconds" that don't work. Noobies connect them upside down and backwards and think their circuit is wrong.
audioguru said:I think RadioShack gets "seconds" that don't work.