ZTX 320 use in rocket

[AdamB]

Hey,

I'm building a rocket fuzz from GGG and I came accross some ZTX 320 NPN silicon transistors in my box of components, can't find much info on them that I can understand, just wondering if these can be used in this circuit or should I buy some 2N5089 for it?

Some seemingly meaningless info on the ZTX 320 here: http://www.digchip.com/datasheets/parts/datasheet/539/ZTX320.php

-Adam

[Ge_Whiz]

http://www.zetex.com/3.0/pdf/ztx320.pdf

It's intended for high frequency operation (VHF and UHF) but should work. The main consideration is that it has a low operating voltage - 15V maximum. They're also comparatively low gain, which is probably a benefit for a distortion unit.

[AdamB]

OK, I've decided to build a small stratoblaster too so I need to order more parts anyhow so I think I'll get some 5089's,

still gonna try the ZTX 320's just to see what it's like, you never know it might be cool.

Will post how it goes when I finally get it up and running.

-Adam

[petemoore]

  Socket the Rocket [Q's anyway...[?]

[Gus]

the rocket or 3 tran will take almost any Si NPN small signal transistor and bias right up.  Try what you have it should work

[AdamB]

Yea I've socketed the transistors, so will give different ones a try in different places.

Cool, just wanted to make sure it wouldn't do any damage or anything if I use them, I know of so very little of these things.

-Adam

[AdamB]

OK, I just finished my rocket pedal (except for artwork, but meh) and it sounds good.

I tried the ZTX320's, it seems they work pretty well as Q2 and Q3, but it creates a horrific screatching sound if you place one as Q1, it's a horrible, horrible noise. They sound a bit softer than the 2N5089's I'm using, but they don't appear to have as much grunt behind them, so I stuck with 5089's for all transistors. Sounds really cool, check my thread on it:

http://www.elixant.com/~stompbox/smfforum/index.php?topic=41440.0

[aron]

Sounds darn good!!!!! I'm going to have to build another one!

Aron