Hey Guys, I think I'm going to make my first build a Zombii instead of an Aristocrat like I had planned. I just have a couple of very noob questions about ordering parts. I'm ordering everything form smallbear also
1) I'm confused about the GE PNP transitors used for Q2 and Q3. Are they germanium, which one, etc? Anyone care to help me with that?
2) I'm ordering the 9mm alpha pots to solder on the board and I just have a couple questions about them. Do I order linear or audio? I'm pretty sure it's not reverse. And for future builds, when do I use linear and when do I use audio. Here's a link to my choices:
http://www.smallbearelec.com/Detail.bok?no=693
Thanks guys!
You want linear for all the pots in this build. For future ref kA is audio, kB is linear, kC is reverse
These ones will work fine..in this build most any pnp will work with little difference in sound
http://www.smallbearelec.com/Detail.bok?no=680
josh
Quote from: ckalinec on February 07, 2011, 11:57:48 PM
Hey Guys, I think I'm going to make my first build a Zombii instead of an Aristocrat like I had planned. I just have a couple of very noob questions about ordering parts. I'm ordering everything form smallbear also
1) I'm confused about the GE PNP transitors used for Q2 and Q3. Are they germanium, which one, etc? Anyone care to help me with that?
2) I'm ordering the 9mm alpha pots to solder on the board and I just have a couple questions about them. Do I order linear or audio? I'm pretty sure it's not reverse. And for future builds, when do I use linear and when do I use audio. Here's a link to my choices:
http://www.smallbearelec.com/Detail.bok?no=693
Thanks guys!
Any PNP germanium bjt's will work as long as they have reasonable values for a fuzz face. That means the smallbear sets will work. That's something like gains of 60-80 and 100-130 (Hfe) for the first and second, and leakage of less than 100uA. Smallbear will sell you a matched set so it's probably a good bet if you only want to build a couple.
the build document mentions that all pots are "B" taper, so you need all linear. (A for audio/log, B for linear, C for reverse log).
good luck
I bought AC128 transistors on eBay from the Czech republic that worked really well for me.
Jacob