ben
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« Reply #15 on: February 02, 2006, 07:08:47 PM » |
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 Excuse me i'm french what is an ammeter is it the thing to calcul ampere (in french) those parts use to work until 2A...so that very much for a little synth like mine it didn't use so much !!! ps : it was not a lm358 sorry |
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expanoncolin
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« Reply #16 on: February 02, 2006, 09:30:55 PM » |
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That's very strange then-all of the pieces work well seperately? Are you sure it's not a problem with the op amp wanting bipolar voltage.
-Colin
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ben
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« Reply #17 on: February 03, 2006, 05:21:50 AM » |
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Witch opamp ?
As i said it works perfectly when my synth is alone on the same supply. When i wanna plug something else (even a poor fuzz) on the same supply
my sound is very low.
in this synth i've put together on the same point of supply the double tone generator, the parallel universe and the tone controll of the whacky
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expanoncolin
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« Reply #18 on: February 03, 2006, 08:09:39 AM » |
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Wait-I think I misunderstood then. It works with the PU, the dual tone generator, and the filter, but not as soon as you plug anything else into it?
-Colin
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ben
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« Reply #19 on: February 03, 2006, 08:26:35 AM » |
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right ! that's it. When i plug something else it doesn't work but with a simple 555tone generator the two generators works but the sound of it is "bad" as i change the starve pot of the parallel universe. And the sound of the tone generator comes thru my synth !!!!! It's a ground problem ? In this recording my synth work normally then i switch on and off the 555 tone generator plugged on the same power supply http://www.megaupload.com/?d=ZCOYDDL4 |
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expanoncolin
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« Reply #20 on: February 03, 2006, 12:29:49 PM » |
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Maybe something is funky with the PU's starve pot. That pot directly limits the voltage that the PU is getting... if any of those lugs were touching ground or if you are taking the power from after the starve pot, that could be causing problems...
-Colin
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ben
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« Reply #21 on: February 03, 2006, 01:04:26 PM » |
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Shure there is nothing like that
no lugs were touching ground the power is taken from the same place with a nine volt without starve except for the PU.
Maybe that's because my ground is on 3 different board ?
I've buit each of them separately. I remeber now somewhere womeone saying it was bad !!
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expanoncolin
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« Reply #22 on: February 03, 2006, 06:49:26 PM » |
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Are all of the grounds connected in one way or another?
-Colin
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ben
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« Reply #23 on: February 03, 2006, 07:05:03 PM » |
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EAch one of my modules has his own grown. There is a wire coming from the PU to the dual tone generator and an other coming from the filter to the dual tone generator.
The DTG collect all positive and negative. I did the same way for the positive.
In fact there is 3 grounds but this is the same as if they were in separated boxes ?
I really miss something
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aaronzarzutzki
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« Reply #24 on: February 03, 2006, 08:24:20 PM » |
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ok i dont want to sound too retarded...
but what are some of the pin numbers on the first diagram?
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ben
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« Reply #25 on: February 03, 2006, 08:58:07 PM » |
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pin 14 to 9 volts
pin 7 to ground
This is a top view of the ic
so point A is pin 4
and piont B is 8
Enjoy
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dnny
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« Reply #26 on: February 04, 2006, 04:00:11 AM » |
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but what are some of the pin numbers on the first diagram? here is the approved diagram whit pin numbers also.  also the datasheet for 40106 will help daniel |
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don´t lick frozen metals.
"trad. Finnish wisdom"
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ben
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« Reply #27 on: February 05, 2006, 08:28:16 AM » |
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please my problem of supply is always here any idea...
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dnny
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« Reply #28 on: February 05, 2006, 10:52:31 AM » |
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have you tried to connect all grounds together ?
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don´t lick frozen metals.
"trad. Finnish wisdom"
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ben
phpBB Member
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« Reply #29 on: February 06, 2006, 12:50:16 PM » |
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My ground ,point is on the tone generator.
Each modules reach the ground from there so...
It would not change anything to add a new connection to ground on each modules...
I have only one supply point for those 3 modules witch (as i said sevral times) is on the generator...
I think it's a PU starve pots witch put the mess...burwhy and how is it possible to stop it....
Thanx for y answer
hace you try to put those stuff after the generator it's very nice :!!!
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