Power

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9VDC to +15V -15V chargepump layout

Last post by roseblood11 « 24 Sep 2018, 23:15
Replies: 6
by snk » 22 Sep 2018, 13:21

Rating: 0.4%

Hello
I am looking for a veroboard layout for a ChargePump from 9VDC to +15V -15V ...
I have found 9V to +/-12V, +12>+15V, but not 9V>+/-15V...
Do...

6 Replies

3004 Views

Last post by roseblood11
24 Sep 2018, 23:15
MOSFET for reverse polarity protection

Last post by POTL « 16 Jun 2018, 04:26
Replies: 3
by POTL » 15 Jun 2018, 23:53

Rating: 0.2%

Hello everybody.
Once again I decided to take an interest in protection from reverse polarity.
In classic pedals we have 2 popular protection...

3 Replies

1931 Views

Last post by POTL
16 Jun 2018, 04:26
Power suppy question

Last post by oczad « 09 May 2018, 17:25
Replies: 2
by oczad » 08 May 2018, 16:29

I have a 3 pedal board that i supply power to via a single wall art with plenty of current. I have tried several good supplies for this and all have...

2 Replies

1524 Views

Last post by oczad
09 May 2018, 17:25
Power Supply section?

Last post by plush « 26 Feb 2018, 06:01
Replies: 4
by black03 » 25 Feb 2018, 22:04

Hi, if I have two circuits, how do I have to do it to join them in the power supply section? I attach the images as an example, if someone can help...

4 Replies

1835 Views

Last post by plush
26 Feb 2018, 06:01
Reverse Polarity Protection

Last post by plush « 19 Sep 2017, 11:52
Replies: 10
by POTL » 07 Sep 2017, 20:48

Hi
In the world of stompboxes, there are many ways to protect the circuit from the wrong polarity
But the most common are circuits using diodes...

10 Replies

3464 Views

Last post by plush
19 Sep 2017, 11:52
pcb tracing

Last post by POTL « 14 Jul 2017, 14:26
Replies: 3
by POTL » 13 Jul 2017, 22:42

Rating: 0.2%

Hello everyone, a question of a beginner
So it is necessary to bring to each component a separate power line (in the figure below from the main line,...

3 Replies

2167 Views

Last post by POTL
14 Jul 2017, 14:26
Can I use 12V with my MXR Distortion+?

Last post by J-fish « 17 Jun 2017, 14:34
Replies: 6
by J-fish » 15 Jun 2017, 14:39

Rating: 0.6%

Hello, I'm writing just to ask if you could explain to me if I can power my MXR Distortion+, current version (M-104 model..) with 12V instead of 9V....

6 Replies

10208 Views

Last post by J-fish
17 Jun 2017, 14:34
Power supply design

Last post by deltafred « 27 Mar 2017, 11:54
Replies: 3
by FausterCraster » 26 Mar 2017, 17:39

Hi,
how to design a really low noise power supply ?
I built a lot of stuff but these never satisfy me too much...

3 Replies

1788 Views

Last post by deltafred
27 Mar 2017, 11:54
What is that yellow component ?

Last post by deltafred « 28 Feb 2017, 14:56
Replies: 4
by FausterCraster » 27 Feb 2017, 22:29

Rating: 0.4%

Hi,
into the PCB is rated 300mA it is just before the 7809 regulator.
This is the link to the project :

4 Replies

1562 Views

Last post by deltafred
28 Feb 2017, 14:56
Xotic voltage doubler adapter

Last post by Duckman « 24 Dec 2014, 14:24

by Duckman » 24 Dec 2014, 14:24

Clever idea... and very DIYble

0 Replies

7472 Views

Last post by Duckman
24 Dec 2014, 14:24
A Power surge from badly grounded amp killed my stompbox

Last post by DrNomis « 10 Dec 2014, 00:14
Replies: 3
by Mrutg » 19 Nov 2014, 22:45

Rating: 0.4%

A Power surge from badly grounded amplifier killed my DIY stompbox (a fuzz pedal), which worked before on other amplifiers.
I just moved to a place...

3 Replies

7913 Views

Last post by DrNomis
10 Dec 2014, 00:14
Using PNP transistors to switch power to FX circuits

Last post by jalmonsalmon « 18 Nov 2014, 16:31
Replies: 2
by jalmonsalmon » 17 Nov 2014, 21:53

Rating: 0.2%

Hey all...
Quick question about this one...
Looking at the schematic here
Red wire from battery Power goes into the FX Circuit board from +V and the...

2 Replies

7571 Views

Last post by jalmonsalmon
18 Nov 2014, 16:31
laptop power cord as power source

Last post by Nocentelli « 13 Oct 2014, 19:44
Replies: 2
by fireflyva » 13 Oct 2014, 18:52

Rating: 0.4%

Hey guys - I'm new at this and don't want to electrocute myself so I thought I'd better ask.

I have an old laptop power cord that is rated at 19.5 v...

2 Replies

7388 Views

Last post by Nocentelli
13 Oct 2014, 19:44
Regulated DC Voltage Current

Last post by PokeyPete « 02 Oct 2014, 13:17
Replies: 4
by vox_boy » 01 Oct 2014, 01:21

Rating: 0.2%

Hey Guys,

Quick question, if I have 10V at 500mA running into a 5V Regulator (rated at 2A for argument sake) does this mean I have 5V at 1A...

4 Replies

8571 Views

Last post by PokeyPete
02 Oct 2014, 13:17
FILTERING 9VDC

Last post by FiveseveN « 19 Sep 2014, 21:46
Replies: 12
by StopDViolins » 21 Jan 2009, 16:37

I'm working on a BYO boost, and I'm trying to find out if there's any way I can filter the dc power jack for any noise that might originate from my...

12 Replies

16748 Views

Last post by FiveseveN
19 Sep 2014, 21:46
Anyone ever used a Weber WPDLXFMR transformer?

Last post by PokeyPete « 26 Jun 2014, 21:35
Replies: 5
by bruin2k3 » 24 Jul 2011, 03:04

Rating: 0.2%

I understand that it has 8 isolated 11V AC outputs and a 9V AC out. Have any of you used it before? Good results with it? Does it come with 20 leads...

5 Replies

11302 Views

Last post by PokeyPete
26 Jun 2014, 21:35
Using daisy chain to increase current capacity?

Last post by DieterVDW « 25 Jun 2014, 20:24

by DieterVDW » 25 Jun 2014, 20:24

Hi,

I was looking to buy a current doubler cable for my Voodoo Labs Pedal Power 2.
But then it hit me: can't I just use a standard daisy-chain cable...

0 Replies

5790 Views

Last post by DieterVDW
25 Jun 2014, 20:24
Hum with relay switch

Last post by Mbas974 « 08 Jun 2014, 19:36

by Mbas974 » 08 Jun 2014, 19:36

Hi, I build a pedal 9V power supply
using a internal PCB trasf. having 15V out stabilized with diodes caps and regulated with 7809 etc... (standard...

0 Replies

6282 Views

Last post by Mbas974
08 Jun 2014, 19:36
positive ground wiring

Last post by copachino « 13 May 2014, 04:42
Replies: 2
by copachino » 13 May 2014, 03:05

hi, i have make a tone bender, but im not sure how to wire my 3pdt, do i just change the negative lead for the positive lead in the wiring, but if i...

2 Replies

7082 Views

Last post by copachino
13 May 2014, 04:42
Small shock from pos earth pedal

Last post by Lucifer « 11 May 2014, 21:37
Replies: 5
by stupidsignup » 30 Jun 2013, 11:02

Ok I have A level physics (an exam at age 18 in the UK) so have smattering of theory.
I HAVE GOT MY HEAD AROUND POSITIVE EARTH/NEGATIVE EARTH - no...

5 Replies

9802 Views

Last post by Lucifer
11 May 2014, 21:37
DIY Isolated Power Supply idea?

Last post by jubal81 « 10 May 2014, 14:19
Replies: 1
by SwamperGene » 10 May 2014, 03:14

Hi all. Been a while since I've been around but finally getting back into dabbling again :)

I've been putting together a pedalboard and the idea of...

1 Replies

7181 Views

Last post by jubal81
10 May 2014, 14:19
Prevent battery usage while OFF?

Last post by Nocentelli « 07 May 2014, 11:28
Replies: 4
by DieterVDW » 06 May 2014, 22:17

Hi,

*** n00b question warning ***

I wonder why it is needed for most effects to drain the battery while the effect is OFF? Especially for...

4 Replies

9552 Views

Last post by Nocentelli
07 May 2014, 11:28
L7660SCPA Diode Protection

Last post by boblob « 27 Apr 2014, 10:35

by boblob » 27 Apr 2014, 10:35

Rating: 0.2%

Hello.

I've been using the L7660 for bipolar power for a while. Was about to order some when I noticed the company had issued an advisory to a...

0 Replies

5906 Views

Last post by boblob
27 Apr 2014, 10:35
ggg isolated power supply

Last post by gjcamann « 04 Apr 2014, 14:01
Replies: 9
by stompthis » 31 Mar 2014, 11:19

Rating: 0.4%

I am looking to make an isolated power supply to replace my current 'daisy chain' setup.

looks good but i have a few questions:

Locally sourced...

9 Replies

13328 Views

Last post by gjcamann
04 Apr 2014, 14:01
Rig a Fuzz-Tone FZ-1A for external power?

Last post by danielhjerppe « 20 Mar 2014, 22:24
Replies: 6
by Cableaddict » 14 Oct 2011, 06:50

I have a Maestro Fuzz-Tone FZ-1A.

As you know, it runs on one 1.5v battery, and has no psu jack.

I'd like to mod it to run off my pedalboard power,...

6 Replies

10627 Views

Last post by danielhjerppe
20 Mar 2014, 22:24

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