uni-junction transister replacement in timer circuit - Electronic Circuits Projects Diagrams Free

00TWINE · 25th November 2002, 07:25 AM

ok Ive got a circuit diagram here for an electronic coin flipper, that uses a 555 timer to "flip a coin" by alternating between two LED's. I looked up the transistor, a 2N2647 transister that is obsolete. So Im wondering if anyone has any suggestions for a replacement transister, its getting late, but tommorow I can post a picture of the schematic. thanks for any help.

Phasor · 25th November 2002, 10:54 AM

If you can't get a hold of a 2N2647, you should be able to use a 2N2646, which is definitely available from most electronic stockists (I bought some just a couple of months ago).

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25th November 2002, 07:25 AM	#1
00TWINE	uni-junction transister replacement in timer circuit ok Ive got a circuit diagram here for an electronic coin flipper, that uses a 555 timer to "flip a coin" by alternating between two LED's. I looked up the transistor, a 2N2647 transister that is obsolete. So Im wondering if anyone has any suggestions for a replacement transister, its getting late, but tommorow I can post a picture of the schematic. thanks for any help. __________________ http://www.nucleargaming.com

25th November 2002, 10:54 AM	#2
Phasor	If you can't get a hold of a 2N2647, you should be able to use a 2N2646, which is definitely available from most electronic stockists (I bought some just a couple of months ago).