40106 vs. 4069

[DavenPaget]

Yes i know , one is a Schmitt trigger hex inverter and one is a standard hex inverter .
http://www.beavisaudio.com/bboard/projects/bbp_PWM.pdf
It's used for tim escobedo's 386 fuzz .
Hmm ?
Can the 4069 directly replace a 40106 and which can "perform" better as the given situation , a fuzz .

[R.G.]

So - what's the question?

[DavenPaget]

So - what's the question?

Sorry about that . i just modified the topic .

[R.G.]

Can the 4069 directly replace a 40106 and which can "perform" better as the given situation , a fuzz .

Some things yes, some no.

I'd have to look at the pinout to see if they're pin-for-pin socket compatible. They are both six CMOS inverters, all right.

The 4069 can be biased into a mostly-linear amplifier mode. The 40106 cannot. The Schmitt trigger and higher/buffered gain mean the 40106 will always have its output saturated  either high or low, no in-between. Working really, really hard to make it be in-between would probably make it oscillate, as the single Schmitt trigger oscillator is a staple of the industry.

Saying "perform better" means you have to know what "better" means. Some people will say "better" means "MORE GAAAAAINNN!!!!!", meaning more distortion. The 40106 will give fully saturated rectangle waves for any input bigger than its hysteresis zone. So it will produce a gating action, with no (AC) output for signals smaller than that, fully saturated rectangles for signals bigger than that. Some people would think that was better. Some would think it was worse. Some people really like the soft distortion of a linear biased CMOS gate, so they'd think that fully saturated was worse.

[DavenPaget]

Can the 4069 directly replace a 40106 and which can "perform" better as the given situation , a fuzz .

Some things yes, some no.

I'd have to look at the pinout to see if they're pin-for-pin socket compatible. They are both six CMOS inverters, all right.

The 4069 can be biased into a mostly-linear amplifier mode. The 40106 cannot. The Schmitt trigger and higher/buffered gain mean the 40106 will always have its output saturated  either high or low, no in-between. Working really, really hard to make it be in-between would probably make it oscillate, as the single Schmitt trigger oscillator is a staple of the industry.

Saying "perform better" means you have to know what "better" means. Some people will say "better" means "MORE GAAAAAINNN!!!!!", meaning more distortion. The 40106 will give fully saturated rectangle waves for any input bigger than its hysteresis zone. So it will produce a gating action, with no (AC) output for signals smaller than that, fully saturated rectangles for signals bigger than that. Some people would think that was better. Some would think it was worse. Some people really like the soft distortion of a linear biased CMOS gate, so they'd think that fully saturated was worse.

I like MASSIVE amounts of distortion , so yeah .
Thanks for the answer , thou , i appreciate it , Keen

[R.G.]

So then amplify your signal up to about 1/2 of the power supply of the 40106, and feed it into the input. What comes out is as clipped as it is possible to be clipped.