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October 31, 2014, 06:45:04 AM
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DIYstompboxes.com  |  Projects  |  Beginner Project  |  3: Build pictorial 0 Members and 4 Guests are viewing this topic. « previous next »
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Author Topic: 3: Build pictorial  (Read 140545 times)
rebelred
Posts: 10

James A.


Re: 3: Build pictorial
« Reply #100 on: February 22, 2009, 08:54:11 AM »

I noticed in your pic you have a 10k instead of a 5k pot; I'm not sure if that would keep it from working or not though. Also, have you checked that you have the pinout correctly oriented on the transistor? If it's in backwards like mine was first you won't get anything out of it.
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1slipperyfish
Posts: 8


Re: 3: Build pictorial
« Reply #101 on: February 22, 2009, 09:06:23 AM »

thanks for your reply Cheesy i have taken the transistor out and tried it both ways, i've also tried different transistors??
i had trouble getting hold of a 5k pot so i thought a 10k would do???
thanks again Cheesy
paul
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Barcode80
Posts: 2250


Patrick Johnson


Re: 3: Build pictorial
« Reply #102 on: February 22, 2009, 01:26:32 PM »

thanks for your reply Cheesy i have taken the transistor out and tried it both ways, i've also tried different transistors??
i had trouble getting hold of a 5k pot so i thought a 10k would do???
thanks again Cheesy
paul
10k is fine. that's not the issue.
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1slipperyfish
Posts: 8


Re: 3: Build pictorial
« Reply #103 on: February 23, 2009, 02:52:44 PM »

has anyone got any suggestions that i might try???
thanks
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aron
Administrator
Posts: 10232

Aron Nelson


Re: 3: Build pictorial
« Reply #104 on: February 24, 2009, 01:17:07 AM »

Triple check your input jack wiring. Also it might be time to try an audio probe. (Also make sure your battery is good).
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1slipperyfish
Posts: 8


Re: 3: Build pictorial
« Reply #105 on: April 27, 2009, 06:31:05 AM »

hello
i have made and audio probe and i plugged my ipod into the input, when i touch on the input wire i get sound and also on the inlet of cap but not on outlet of cap??? any suggestions? in other places i get crackels and thuds but no music
thanks
paul
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stratomaster15
Posts: 21


WWW
Re: 3: Build pictorial
« Reply #106 on: August 12, 2009, 07:56:59 AM »

Ok, so I'm a major newbie at this, and I understand everything but the last picture. And I don't really understand about the transistor. Do I need one to put in there? Does anybody have pictures of this finished, like the guts and the board and everything? Thanks!

One last question... What's an NPN Boost? Tongue

Sorry for the major newb questions!
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1slipperyfish
Posts: 8


Re: 3: Build pictorial
« Reply #107 on: August 12, 2009, 08:21:31 AM »

i'm a noob myself but the npn is the type of transistor that's used
hth
paul
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aron
Administrator
Posts: 10232

Aron Nelson


Re: 3: Build pictorial
« Reply #108 on: August 12, 2009, 10:30:31 AM »

Yes, you stick the transistor in the socket. This project is a booster that uses an NPN transistor. Please check out the FAQ for more info.
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jmclaren
Posts: 10


Re: 3: Build pictorial
« Reply #109 on: August 17, 2009, 08:53:31 PM »

Is there a link to a schematic for this build?
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jmclaren
Posts: 10


Re: 3: Build pictorial
« Reply #110 on: August 17, 2009, 08:55:11 PM »

Never mind............It's shown a couple threads down.  Sorry!
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Chainclaw
Posts: 4


Re: 3: Build pictorial
« Reply #111 on: November 18, 2009, 08:45:24 PM »

Hi, I'm attempting to make this build, but because I'm here and not in the "show completed projects" thread, it means I've made a mistake somewhere.

When I get everything plugged in except the input jack, I get random noises out of my amp that suggests things are probably working properly (similar to the noise when you plug in your guitar when the amp is on). As soon as I plug my guitar into the input jack, all sound cuts off from the amp except the usual low buzz as if nothing was plugged in.

I had a couple bad solder points that I fixed and made it as far as above. Now I am wondering if I wired my stereo input jack wrong. I picked up a strange one, the only one I could find in the area, and I don't understand the schematic for it on the back. I kind of guessed at it with the wiring, and I think I got it wrong.

Here is how I have it wired:


I google searched the description of the jack, and this seems to be the same thing:
http://www.guitarelectronics.com/product/JK31/9_Pin_14_Stereo_Jack_w_DPDT_Switch.html

Any tips? If I got this wired right then it'll be a lot of debugging from here.
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1tczx
Posts: 45


Re: 3: Build pictorial
« Reply #112 on: November 23, 2009, 09:08:45 PM »

hey guys noob here, trying this out as my first project.
however, i was wondering how does the currrent knows where to flow next in my PCB?left to right? if its guided thru wire like in a schematic i understand but in a pcb?
allittle help here thx
im using this pcb
[img]http://www.e-gizmo.com/PRODUCT/proto/pcbs2.gif[/i
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zeestar
Posts: 10


Re: 3: Build pictorial
« Reply #113 on: January 16, 2010, 08:54:39 AM »

Hi all .. ive put this circuit together on a breadboard .... after 6 attempts ive sort of got it to work ..
Im getting a weird tone constantly (no switch yet) almost like a oscillating signal , the pot works ie it increases the guitar volume ..
Also the volume of the pedal is quite low compared to my normal guitar level ie the pot has to be full up , in order to be level with the bypassed (guitar plugged straight into amp ) level..
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zeestar
Posts: 10


Re: 3: Build pictorial
« Reply #114 on: January 16, 2010, 01:16:20 PM »

also i forgot to add .. does it make a difference which way round the resistors go Huh
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zeestar
Posts: 10


Re: 3: Build pictorial
« Reply #115 on: January 17, 2010, 06:24:23 AM »

 Roll Eyes  well ive got rid of the weird signal ... i realised it was my 9v power supply to close to my LCD monitor ...

So the pedal works ... just need to sort out the volume drop .... ... im using an alpha 4.7k pot brand new ... and i only seem to here a difference on the last 1/4 turn ... so for the first 3/4  theres no difference in volume .... i know i should use a 5k pot .. but i read on this forum that a 4.7k should be fine .... am i missing something Huh
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Barcode80
Posts: 2250


Patrick Johnson


Re: 3: Build pictorial
« Reply #116 on: January 19, 2010, 01:52:37 PM »

the pot value isn't the issue. double check all the parts near the volume pot, it sounds like you may have a resistor soldered in the wrong place.
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leehutch
Posts: 1


Re: 3: Build pictorial
« Reply #117 on: March 08, 2010, 05:22:53 PM »

How do you know what goes where on the board and what connects to what? Sorry for the dumb question i just can't get my head round it
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Barcode80
Posts: 2250


Patrick Johnson


Re: 3: Build pictorial
« Reply #118 on: March 08, 2010, 06:07:03 PM »

How do you know what goes where on the board and what connects to what? Sorry for the dumb question i just can't get my head round it
page 1 of this very thread.
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bigmufffuzzwizz
Posts: 14


Re: 3: Build pictorial
« Reply #119 on: March 13, 2011, 10:00:13 PM »

awesome tutorial!! doesn't seem so daunting when done step by step  icon_wink
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