Search found 7 matches

by franziskano
Fri Nov 20, 2020 1:32 pm
Forum: Music Tech DIY
Topic: Can anyone share a V2164 / similar LTSpice model?
Replies: 28
Views: 547

Re: Can anyone share a V2164 / similar LTSpice model?

Hey devinw1, there was a thread about the ssm2164 Spice Model, here on MW, called "Spice model for ssm2164?" (https://www.muffwiggler.com/forum/viewtopic.php?t=155122) , which I believe is nearly the same chip. I didn't use it, as the datasheet is straight forward and I just breadboarded it and it w...
by franziskano
Wed Nov 18, 2020 5:06 pm
Forum: Music Tech DIY
Topic: DIY Real Spring Reverb Pedal?
Replies: 12
Views: 281

Re: DIY Real Spring Reverb Pedal?

I did try to cram a spring reverb in a pedal format. I was inspired by the Spaceman Effects Orion. I put a lot of time and effort in it, and it worked on breadboard (though I can't remember if it was noisy or not). I join a schematic in pdf format. I did make a pcb, at that time I printed the pcb my...
by franziskano
Sat Oct 31, 2020 1:24 pm
Forum: Music Tech DIY
Topic: Time for capacitors to discharge?
Replies: 14
Views: 321

Re: Time for capacitors to discharge?

Here is a video on how to discharge the filter capacitors of a Guitar Tube Amplifier, the same technique should apply to any high voltage device:

.

You can always check if there is still voltage left with a multimeter.
by franziskano
Thu Oct 29, 2020 4:08 am
Forum: Music Tech DIY
Topic: Understanding suitable transistor and opamp substitutions
Replies: 28
Views: 792

Re: Understanding suitable transistor and opamp substitutions

Most Dual and Quad Opams are interchangeable considering their pinouts. But some are better for certain applications than others. I mainly use 2 types TL072 and NE4558. Mainly NE4558 for breadboarding, because they are cheap, reliable and suitable for most purposes and if I destroy one it isn't that...
by franziskano
Sat Oct 24, 2020 4:42 pm
Forum: Music Tech DIY
Topic: Tutorial for moving from DIY PCBs to commercial PCBs for first time
Replies: 14
Views: 609

Re: Tutorial for moving from DIY PCBs to commercial PCBs for first time

Thanks all, that's very helpful On a two layer board can I solder to either side or do I need to make special provisions for that? It's a 'hat' for a Raspberry PI project. So the 40 way connector for the PI will be soldered to the underside of the board whereas other components will be soldered on ...
by franziskano
Fri Oct 23, 2020 4:38 am
Forum: Music Tech DIY
Topic: Tutorial for moving from DIY PCBs to commercial PCBs for first time
Replies: 14
Views: 609

Re: Tutorial for moving from DIY PCBs to commercial PCBs for first time

If you are using eagle, you might check out Autodesk's own Tutorials : https://www.autodesk.com/products/eagle/blog/pcb-layout-basics-component-placement/ , but you will easily find additional more complete tutorials. If you don't know how to do something just type in "<your issue > on Eagle" on Goo...

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