Author Topic: 2: The Schematic and parts list (Read 334688 times)

BWFalcon · « **Reply #80 on:** October 13, 2006, 12:33:23 PM »

This may be up here somewhere, but if not....
Here's something that helped me figure this out. I haven't started building yet, I am still in learning mode. I downloaded PSPICE and set up the circut. If you copy this in, the output will be a nice little graph that shows the signal getting boosted. Now I can change different component values and learn what they do.

VSUPPLY VCC 0 9v
VIN IN 0 AC 0.4 SIN(0 .2V 1K)

R_R1 $N_0002 VCC 10k
R_R5 VCC $N_0003 100k
C_C3 $N_0003 $N_0004 22u
Q_Q1 $N_0002 $N_0005 $N_0004 Q2N2222
C_C1 $N_0002 OUT 10u
C_C4 0 $N_0007 47u
R_R2 0 OUT 100k
RT_R7 0 $N_0007 {(5k*(1-0.5))+.001}
RB_R7 $N_0007 $N_0004 {(5k*0.5)+.001}
R_R3 $N_0003 $N_0005 10k
R_R4 0 $N_0003 47k
C_C2 IN $N_0005 .1u

.LIB
.TRAN .01E-03 2E-3
.PROBE
.END

Aron Allen · « **Reply #81 on:** November 30, 2006, 04:01:44 PM »

Quote

Can you tell me how many capacitors, transistors & resistors there are in this circuit? Are there any more parts you need?

Why do you have a 100k resistor on the output to ground? it dosent really make sense unless you want to limit the output. As far as i know there is no DC after a capacitor, so i dont really se the purpose of it.

EDIT: By the way cool place ... and i found a name brother (there ain't many Arons in the world)

mewithyou · « **Reply #82 on:** July 01, 2007, 07:53:07 PM »

i just got the big pack of resistors and caps just ceramic from radio shack but the caps just say like 1 or 7 or 10 and thats it what does that mean

aron · « **Reply #83 on:** July 02, 2007, 04:35:04 PM »

>caps just say like 1 or 7 or 10 and thats it what does that mean

I have no idea. Maybe it's just picofarads. Too small to really help.

GREEN FUZ · « **Reply #84 on:** July 02, 2007, 04:56:25 PM »

Quote from: aron on July 02, 2007, 04:35:04 PM

>caps just say like 1 or 7 or 10 and thats it what does that mean

I have no idea. Maybe it's just picofarads. Too small to really help.

I believe you`re right. 10pf =0.00001uF, not a value commonly seen in guitar circuits if I`m not mistaken. Maybe someone will correct me.

s.r.v. · « **Reply #85 on:** July 09, 2007, 10:00:48 PM »

what do you do with the ground wires? just solder them together?

12milluz · « **Reply #86 on:** July 12, 2007, 10:43:46 PM »

well actually got my guitar tonight(electric, had an acoustic) but have been lookin at this site for a while. my question about making this pedal- does it need a switch/button? or is there just a knob sticking out of it?

12milluz · « **Reply #87 on:** July 12, 2007, 11:04:26 PM »

ok sorry, i saw bout the switch. what must the standards be on the LED as far as voltage?

12milluz · « **Reply #88 on:** July 19, 2007, 12:26:04 PM »

okay bought all my parts today from radioshack and the others are coming in the mail from aron. my question is how to we use that 8DIP?

aron · « **Reply #89 on:** July 19, 2007, 01:17:53 PM »

Go to step 3:

http://www.diystompboxes.com/smfforum/index.php?topic=941.0

12milluz · « **Reply #90 on:** July 19, 2007, 02:13:08 PM »

okay, so i see you cut it in half longways, then cut one socket out?

Wills831 · « **Reply #91 on:** July 28, 2007, 07:00:03 AM »

I've seen people talking about LEDs in this circuit, i can't see any $:-\$ and how would you wire up a jack socket? thanks

aron · « **Reply #92 on:** July 28, 2007, 01:04:28 PM »

Did you read Step #4?

Wills831 · « **Reply #93 on:** July 31, 2007, 08:03:02 AM »

nope

. i see it now, thanks

micro · « **Reply #94 on:** July 31, 2007, 12:20:08 PM »

Thanks for this tutorial Aron!

One question....

In the parts list you have 22uf cap listed but not in the picture
of collected components. Also in the picture there is a 100uf cap
thats not in the parts list.

aron · « **Reply #95 on:** July 31, 2007, 03:43:19 PM »

>In the parts list you have 22uf cap listed but not in the picture
of collected components. Also in the picture there is a 100uf cap

I don't see it. Maybe you are seeing 100V?

micro · « **Reply #96 on:** August 01, 2007, 01:56:05 AM »

hmmm...im a total noob, maybe im reading it wrong?
the one all the way to the right in the pic.

also there is no 22uf in the pic. right??

sorry i just was trying to follow this so closely cause this is my first project.

aron · « **Reply #97 on:** August 01, 2007, 03:15:08 PM »

Hehehehe YOU ARE RIGHT! No one seemed to catch this.

Just ignore this pic and go with what you know it should be.

Aron

iShawn · « **Reply #98 on:** October 19, 2007, 12:05:23 AM »

If one was feeling risky could one install a DPDT toggle switch that changes between 2 transistor types for different sounds? Is the sound difference drastic enough to toggle between them? Just though I'd make something that's a little different, and if you're installing a socket you're suggesting one might want to change the transistors easily (and for not messing the soldering up). And what would be changed to add the treble boost mod that I've seen on here for this schematic?

aron · « **Reply #99 on:** October 19, 2007, 04:34:47 PM »

>If one was feeling risky could one install a DPDT toggle switch that changes between 2 transistor types for different sounds? Is the sound difference drastic enough to toggle between them?

You could. But switching capacitors might yield more dramatic changes in sound.

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Author Topic: 2: The Schematic and parts list (Read 334688 times)

Aron Allen