Booster with mid boost and treble&bass boost lodes?

[iainpunk]

i'd think people would know by now that most of the time i put ideas out like that.

People would also know by know that you leave the all the dirty job to them..

''''dirty jobs'''' meaning the Ctrl-C and Ctrl-V functions? its not like its different in many cases.

here is the ''dirty'' version... still no biassing, as its based around a half wave rectifier for more distortion with less gain. uses single supply. the opamp is LM358 for operation near 0v and its crossover distortion adds to the sound.


cheers

edit: Aron should add a symbol / marker so that moderators can mark a thread as 'de-railed'/'solved'/etc...

[antonis]

here is the ''dirty'' version... still no biassing,

But now it IS biased..!!
(via diode - 22k - 22k ..)

P.S.
Iain, I think you have to present integraded circuits..
(not all forum members are able to readily implement a "main idea" circuit into a working effect..)

BTW, you could obtain half wave rectification without amp_1 out diode..
(just maintain GND bias and single supply..)

[iainpunk]

here is the ''dirty'' version... still no biassing,

But now it IS biased..!!
(via diode - 22k - 22k ..)

is it considered bias if its at 0v?

P.S.
Iain, I think you have to present integraded circuits..
(not all forum members are able to readily implement a "main idea" circuit into a working effect..)

fair point

BTW, you could obtain half wave rectification without amp_1 out diode..
(just maintain GND bias and single supply..)

i found it wouldn't really cut at the middle of the wave, when guitar volume dialed back it would even clean up... its the input bias current, generating a voltage over the 100k input grounding resistor, setting the bias just a smidge above 0v, letting through part of the bottom wave. the diode reduces the 'loss' of the rectifier

cheers

[antonis]

is it considered bias if its at 0v?

Only when 0V means Ground..

BTW, you can maintain de-railed depiction but, at least, connect 100k bias resistor at some Vref point..
(and, if you do so, place a cap in series with 1k gain resistor)

[iainpunk]

precision rectifiers NEED their feedback loop DC coupled to the same bias as the signal, otherwise they will charge up a capacitor and cut out or do other unorderly things you don't want it to.

cheers

[antonis]

Absolutely true & correct..!!

But for DUAL supply and signal INVERTING input..