Search found 427 matches

by plush
Yesterday, 16:55
Forum: DIY Projects
Topic: 3D models of components
Replies: 5
Views: 880

Re: 3D models of components

I love your 3D models, I use them all the time. I am wondering what type of program you use to make them. Can you recommend a program for a beginner to 3D ? Preferable free to use. Thanks. Oh thank you, I'm really glad you like em. My go-to software is Fusion360. It has very nice UI and is quite ea...
by plush
12 Oct 2021, 16:52
Forum: Pedal Debugging & Troubleshooting Support
Topic: Rat differences?
Replies: 5
Views: 196

Re: Rat differences?

darrencp wrote: 12 Oct 2021, 08:08 so wondering if the toggle of diodes is enough or should the extra components be changed too?
Hi Darren,

In all honesty, it depends on what you are trying to achieve.


2 things:
- circuit simulator https://www.falstad.com/circuit/
- breadboard
by plush
07 Oct 2021, 15:48
Forum: Parts & Tools Sourcing & Trading
Topic: FET substitution in ProCo RAT
Replies: 6
Views: 451

Re: FET substitution in ProCo RAT

Output stage is just a voltage follower. Pretty much any jfet with suitable vgss should work.
by plush
03 Oct 2021, 15:01
Forum: Pedal Debugging & Troubleshooting Support
Topic: Help! Pedalpcb Complex/Friedman Smallbox Probs
Replies: 8
Views: 287

Re: Help! Pedalpcb Complex/Friedman Smallbox Probs

vmaxvmax wrote: 03 Oct 2021, 14:19 Big drop in volume across R3 (10K) to be expected I guess. More than half.
There shouldn't be any drop before or after R3 if measured relative to ground.

I advice you to check your component values.
by plush
27 Sep 2021, 18:43
Forum: Pedal Debugging & Troubleshooting Support
Topic: Tube preamp relay click on start up
Replies: 12
Views: 302

Re: Tube preamp relay click on start up

Reachahighernoon wrote: 27 Sep 2021, 18:00
I assume a thermistor will help me? Or is the issue solely related to the supply?
Yep, NTC placed in series with VCC should work.
Relay soft start with a timer/voltage reference is also an option.
by plush
27 Sep 2021, 17:54
Forum: Pedal Debugging & Troubleshooting Support
Topic: Tube preamp relay click on start up
Replies: 12
Views: 302

Re: Tube preamp relay click on start up

Reachahighernoon wrote: 27 Sep 2021, 17:52 See my edit please
Well, I guess, we can mark this one as solved, right? :)

Reason = smps going into hiccup due to inrush.

Those provided by Effectrode may have higher inrush limit or deal with it in a different way.
by plush
27 Sep 2021, 17:51
Forum: Pedal Debugging & Troubleshooting Support
Topic: Tube preamp relay click on start up
Replies: 12
Views: 302

Re: Tube preamp relay click on start up

My assumption is that SMPS wall wart goes into hiccup mode due to large inrush (especially if there's a lot of filtering/bypass caps present), then stabilizes after some time. Which is weird cos these are the same wall warts that Effectrode sell I'm not really sure how relay control is implemented ...
by plush
27 Sep 2021, 17:46
Forum: Pedal Debugging & Troubleshooting Support
Topic: Tube preamp relay click on start up
Replies: 12
Views: 302

Re: Tube preamp relay click on start up

My assumption is that SMPS wall wart goes into hiccup mode due to large inrush (especially if there's a lot of filtering/bypass caps present), then stabilizes after some time. This explains relay clicking.
Some SMPS don't like huge capacitive loads and/or don't have any intelligent inrush control.
by plush
24 Sep 2021, 06:55
Forum: Boutique Stompboxes dissected...
Topic: Verellen - Meatsmoke Preamp [traced]
Replies: 51
Views: 2376

Re: Verellen - Meatsmoke Preamp [traced]

Nice build. But, I'd consider rerouting C2. Just as a precaution. Any particular reason? When dealing with high voltage (even though it's highly current-limited in this case), you still need to consider spacings between traces and HT sources. In your case you've decoupled your signal line from HT w...
by plush
23 Sep 2021, 16:48
Forum: Boutique Stompboxes dissected...
Topic: Verellen - Meatsmoke Preamp [traced]
Replies: 51
Views: 2376

Re: Verellen - Meatsmoke Preamp [traced]

Nice build.

But, I'd consider rerouting C2. Just as a precaution.
by plush
16 Sep 2021, 16:18
Forum: Modern Stompbox Effects (1975 - ...)
Topic: Maxon - CP101 Compressor [schematic]
Replies: 16
Views: 4624

Re: Maxon CP101 Compressor [schematic]

Came here looking for a schematic of a simple optical compressor and found only broken links. Best I could find on the web was a blurry lo-res thumbnail by Yamazaki. So I've redrawn the schematic starting with the blurry thumbnail and using part values from Storyboardist layout. This schematic is t...
by plush
15 Sep 2021, 17:17
Forum: Announcements and Forum Rules
Topic: How to manually add tags to titles
Replies: 4
Views: 230

Re: How to manually add tags to titles

afaik, only mods can do this
by plush
25 Aug 2021, 18:34
Forum: Parts & Tools Sourcing & Trading
Topic: Half-way down latching PCB push switch?
Replies: 7
Views: 392

Re: Half-way down latching PCB push switch?

This thing is very common in digital camera triggers. Half-press for focus, full press to take the picture. I have no idea how it's made. I do not think it's bad UI, on the contrary, when there is a proper tactile feedback. This is different. Camera triggers (focus/shutter release combos) are made ...
by plush
25 Aug 2021, 14:56
Forum: Parts & Tools Sourcing & Trading
Topic: Half-way down latching PCB push switch?
Replies: 7
Views: 392

Re: Half-way down latching PCB push switch?

This is a bad idea. Button should only exist in two possible stages: pressed or not. By no means there should be any mid-stages because it makes it difficult to interract with the button and it also would require you to implement additional indication to show in which stage the button currently is, ...
by plush
20 Jul 2021, 13:34
Forum: Parts & Tools Sourcing & Trading
Topic: Rubber material for Fuzz Face
Replies: 4
Views: 934

Re: Rubber material for Fuzz Face

Google "ribbed rubber matting"

On newer ff pedals this part is injection molded.
by plush
10 Jul 2021, 05:37
Forum: DIY Projects
Topic: Low Hum DC Jack - Valve Caster Build
Replies: 6
Views: 992

Re: Low Hum DC Jack - Valve Caster Build

Check your DC power for ripple. Don't forget to turn DC coupling on your scope.
by plush
03 Jul 2021, 11:51
Forum: Amplifiers
Topic: DIY marshall preamp quesstion
Replies: 2
Views: 942

Re: DIY marshall preamp quesstion

If there's a gain stage or phase inverter after master volume, then yes, you need a coupling cap after it.

Also, it should be useful to add a series resistor to protect the tube from shorts to ground.
by plush
29 Jun 2021, 15:46
Forum: Pedal Debugging & Troubleshooting Support
Topic: Boss RV-5 Reverb - Broken Potentiometer - Substitution
Replies: 4
Views: 770

Re: Boss RV-5 Reverb - Broken Potentiometer - Substitution

If you are lucky enough with this shit, you can snip copper rivets and replace top part with the shaft from other 9mm pot, then glue them together with CA or install new rivets.
by plush
19 Jun 2021, 14:22
Forum: Pedal Debugging & Troubleshooting Support
Topic: No clipping after Clark Gainster presence removal?
Replies: 2
Views: 674

Re: No clipping after Clark Gainster presence removal?

Hi guys, I'm kinda baffled with the simple mod a did to a Clark Gainster type of circuit. I wanted to remove the 'presence control' and add a TS-type tone control. After I clipped the resistor at the red cross, the circuit didn't clip anymore. I got just a clean sound with only the volume control h...
by plush
19 Jun 2021, 05:23
Forum: Pedal Debugging & Troubleshooting Support
Topic: Voodoo Lab Micro Vibe lfo/bulb Problems
Replies: 2
Views: 676

Re: Voodoo Lab Micro Vibe lfo/bulb Problems

1. what bulb are you using 2. do you have access to oscilloscope to check lfo and bulb driver? What if you replace the bulb with a combination of LED and current limiting resistor - will it work the same? I assume that something is wrong with bulb driver transistor, or bulb is pulling excessive curr...