Hey guys, Im gonna build a Weener pretty soon, and thought I'd buy the recommended 2N3565 for Q1. But in my shopping haste I ordered PN3565's from Tayda..... Not a big problem, as I'll socket it anyway and have a lot of transistors I can sub in the Q1 position, but what the h@ll are PN3565's and where can I use them for? When I look at the datasheets, they appear to be a little beefier version of the 2N3565, am I right? Thanks!
Paul
They work the same. They tend to have higher gain, but almost EVERY modern transistor has more gain than the same part number from several decades ago -- see BC109s for example.
Guitar pedals is probably the only place where low-gain is ever really desirable. I mean, have you tried finding a modern, in production silicon transistor with guaranteed hfe < 100? I'm not sure there are any.
Quote from: midwayfair on January 26, 2013, 02:19:25 PM
They work the same. They tend to have higher gain, but almost EVERY modern transistor has more gain than the same part number from several decades ago -- see BC109s for example.
Guitar pedals is probably the only place where low-gain is ever really desirable. I mean, have you tried finding a modern, in production silicon transistor with guaranteed hfe < 100? I'm not sure there are any.
I've purchased a bunch of BC108B and many were between 70 to 140 hfe. I sorted them out for si Fuzz Face uses, these are the metal cans.
Thanks Jon!
Quote from: midwayfair on January 26, 2013, 02:19:25 PM
They tend to have higher gain...
I want my Weener to be quite dirty (pun intended...) so high gain is no problem. I'll be sure to try them out when selecting a tranny for Q1. I also have a bunch of 2N2924's (got them from Timbo, thanks again!) which are supposed to sound very good in that position!
Paul