Discrete distortion blues... :(

[Phorhas]

Every time I build a discrete components drive circuit I get this unpleasant dirt/noise/shhh/spikes/etc, espwcially of high frequencies "around" the sound... (this isn't my native languege so I hopw you got my point)... why is this?

[R.G.]

It's not anything inherent in the discrete parts versus ICs if that's what you're asking. Every circuit is different. Integrated circuits are made from the same parts as discrete ones - transistors, diodes, wires, resistors, caps, and so on. It's what you do with them that matters.

[j0shua]

Shalom

you can put a sound sample here my friend

[Phorhas]

Well, it happens mainly with BJTs in FF like crkt (yes, even with low hfe) but also with FETs in a wide range of gain stage combinations.