Gibson High Performance Transient Suppresion?

Re: Gibson High Performance Transient Suppresion?

Uh huh. So all red LEDs in the world have the same specs. That's amazing. But thanks for clearing that up.

Now on a serious and productive note:

I ASSUME that in the article the guy is talking about red LEDs that have a forward value of 2.2V. But what mA value to use for this??? Or because this is a passive circuit it doesn't matter???

Oh and yellow and orange apparently have the same forward values as red.
 
Re: Gibson High Performance Transient Suppresion?

You don't need to worry about the current rating, that is the current for lighting LEDs, this doesn't care about that, just any cheap, generic red LEDs will do (and red is usually the cheapest LEDs). FWIW, I would just use red, I assume Craig Anderton did a lot of experimentation and decided red worked best, he is a very smart dude. If you want more specific answers, I hear he is also a really nice guy and you can probably contact him through his website - http://www.craiganderton.com/
 
Re: Gibson High Performance Transient Suppresion?

Hello.

Thank you for that answer. Understood clearly now.

I was really surprised when I saw this. And for good reason (which I'll explain when I have some more time). I'd be really keen to try this to see just how it stacks up against using a compressor. But as I said: I'll explain later.
 
Re: Gibson High Performance Transient Suppresion?

Has anyone kept up with this? While this schematic doesn't exactly apply to any of my equipment, I would like to know how it's turned out for other folks on this forum.
 
Re: Gibson High Performance Transient Suppresion?

This seems like a pretty interesting idea. It appears to me that all you have to do is wire a pair of diodes facing opposite directions in series with the ground or output lug of the output jack? The bypass wiring diagram he gives kind of muddies things up for me.
 
Re: Gibson High Performance Transient Suppresion?

DOH, forgot about this, back on my to-do list, until I forget about it again...
 
Re: Gibson High Performance Transient Suppresion?

'59 said:
This seems like a pretty interesting idea. It appears to me that all you have to do is wire a pair of diodes facing opposite directions in series with the ground or output lug of the output jack? The bypass wiring diagram he gives kind of muddies things up for me.
Click to expand...

I think he is just showing how the Gibson transient suppression is wired with the switch, yes, it is just 2 diodes wired like you would for clippers in a distortion/OD pedal, but since the signal level is so low directly from the pickups it won't introduce any distortion, it will just cutoff large transient spikes.
 
Re: Gibson High Performance Transient Suppresion?

I got the red LEDs from China 2 months ago
Just havent made it to testing yet
 
Re: Gibson High Performance Transient Suppresion?

'59 said:
This seems like a pretty interesting idea. It appears to me that all you have to do is wire a pair of diodes facing opposite directions in series with the ground or output lug of the output jack? The bypass wiring diagram he gives kind of muddies things up for me.
Click to expand...
2 LEDs in *parallel* between hot and ground (i.e. across the jack). Diodes conduct when the voltage across them is high enough and otherwise don't conduct. When they conduct, the voltage across them is limited to this forward voltage. Hence, you see diodes for clipping after a simple transistor amplifier in distortion pedals.

The forward voltage for cheap run-of-the-mill LEDs is about 2.2V, which is several times what you'd expect from your pickups, so most of the times the diodes are doing nothing.

The caveat to all this is that you need to cover the LEDs with tape or some sort of case. LEDs don't just emit light when they're conducting, they can also be triggered to conduct by light, so you can introduce all sorts of unwanted noise otherwise.

Sent from my BlackBerry using Tapatalk
 
Re: Gibson High Performance Transient Suppresion?

ibanezrocks said:
2 LEDs in *parallel* between hot and ground (i.e. across the jack). Diodes conduct when the voltage across them is high enough and otherwise don't conduct. When they conduct, the voltage across them is limited to this forward voltage. Hence, you see diodes for clipping after a simple transistor amplifier in distortion pedals.

The forward voltage for cheap run-of-the-mill LEDs is about 2.2V, which is several times what you'd expect from your pickups, so most of the times the diodes are doing nothing.

The caveat to all this is that you need to cover the LEDs with tape or some sort of case. LEDs don't just emit light when they're conducting, they can also be triggered to conduct by light, so you can introduce all sorts of unwanted noise otherwise.

Sent from my BlackBerry using Tapatalk
Click to expand...

Well if they are inside a guitar cavity or inside a cable Jack housing it probably won't make much difference
 
Re: Gibson High Performance Transient Suppresion?

ibanezrocks said:
The caveat to all this is that you need to cover the LEDs with tape or some sort of case. LEDs don't just emit light when they're conducting, they can also be triggered to conduct by light, so you can introduce all sorts of unwanted noise otherwise.
Click to expand...

Do what? Red LEDs conduct when the voltage gets ~0.7V, so what effect would external light have on them?
 
Re: Gibson High Performance Transient Suppresion?

Yep, that's a good deal, the LEDs are basically free with shipping ;-)

What are you going to do with all of them?
 
Re: Gibson High Performance Transient Suppresion?

I was thinking of putting them on my piezo equipped guitars to see it it could stop those bright transients that sometimes come off them things

Today my aqua Dean had a runaway howling feedback that was horrible
Maybe this can be tamed
 
Re: Gibson High Performance Transient Suppresion?

Here's a simple drawing I made of how to do it:
Screenshot_20190605-172820_PicsArt.jpg
Remember to make sure that the diodes are oriented in the opposite direction, it does matter.
 
Re: Gibson High Performance Transient Suppresion?

Nice! You only want to use red for the transient suppression, the forward voltage on the others is too high, they won't do anything.

I think I have some red ones laying around in one of my parts boxes if I get around to it.
 
Last edited:
Re: Gibson High Performance Transient Suppresion?

Oh I got 100 red ones

If you cant find yours
Give me a shout
 
Re: Gibson High Performance Transient Suppresion?

ehdwuld said:
Well if they are inside a guitar cavity or inside a cable Jack housing it probably won't make much difference
Click to expand...
Yeah, that's just a warning in case someone tries to test this out in the open first.

Sent from my BlackBerry using Tapatalk
 
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