josephbtravis
New Member
I constructed an astable multivibrator from instructions in my 300 in 1 electronics kit, but have accidentally burnt out the 5 transistors that came with it. I went to radio shack today to get some replacements, and found that they didn't work when I threw them in. It wasn't until then that I realized that all transistors aren't created equal. I knew about pnp and npn, but I didn't realize that one npn was different from another npn.
So I'm at a loss as to how to get my multivibrator working again. The ones I was using were labeled "C1740" with "S RG" under that. I haven't been able to find any information about them.
The transistors I picked up at radioshack were 2N3906 PNP and 2N2222 NPN transistors. What is the difference between these and the C1740 that I had before? Why didn't they work? Is the C1740 something obscure that I won't be able to find a replacement for at radioshack?
So I'm at a loss as to how to get my multivibrator working again. The ones I was using were labeled "C1740" with "S RG" under that. I haven't been able to find any information about them.
The transistors I picked up at radioshack were 2N3906 PNP and 2N2222 NPN transistors. What is the difference between these and the C1740 that I had before? Why didn't they work? Is the C1740 something obscure that I won't be able to find a replacement for at radioshack?