Muzzle 2N3904 replacement?

[Dali]

The Muzzle call for 4 * 2N3904. Tayda is out of them and I was wondering if any of those would do:

• 2N4401
• 2N2907
• BC547

Source:

finding suitable substitute for 2n3904 transistor

i have to make a portable handly lie detector but i was not able to get a 2n3904.What substitute can i use?I have searched a lot and get to know that 2n2222,2n4401,2n2907,bc547 can be a replacement...

electronics.stackexchange.com

Thanks !

 

[Robert]

2N4401 should work fine.

 

[Dali]

2N4401 should work fine.

I bought some of each just after writing this. At 0.05$ it's no big deal.

Thanks fro the magnificent support !

 

[Chuck D. Bones]

2N2907 never gonna work, it's PNP. They way the transistors are used in the Muzzle, any small NPN will work.