FETs that = tubes

[yeto]

I have searched and have found that some posters feel that the OPA2604 and the NE5532 are approx. the same as a 12ax7 tube.

I was hoping someone would be able to offer matching numbers for a 6L6GC and an EL34 tube.

Thanks,
Yeto

 

[Le Basseur]

Is this a joke?
😕

 

[Christer]

Is this a joke?
😕

Don't know, but at least it's hard to get the op amps to glow. Explode, yes. But glow, nope. never succeded with that. 🙂

 

[wxn]

You can always put a bulb on top of opamp

 

[Giaime]

A red led under the board would do the trick 😀

Seriously, I think that's a real deep misunderstandement (is this correct english?)

 

[yeto]

This is the thread where I got the information from.

This is the thread where I got the information from.

http://www.diyaudio.com/forums/showthread.php?s=&threadid=67925&highlight=

 

[poobah]

Seriously, I think there is a real deep misunderstanding.

😀

 

[Giaime]

Seriously, I think there is a real deep misunderstanding.

Thanks Poobah, I feel so ashamed now of my english...

 

[poobah]

Giaime,

Your English is fairly good. I have a deep respect for all of the foreign members that work hard to use English, it is more than I could do.

 

[leadbelly]

Re: This is the thread where I got the information from.

This is the thread where I got the information from.

http://www.diyaudio.com/forums/showthread.php?s=&threadid=67925&highlight=

I personally wouldn't take anything MrGuitarDeath said too seriously. 🙂 And in fairness to him you read too much into his post.

But there's nothing wrong with building an all-solid-state tube distortion pedal. Just search for one of the countless schematics out there.

 

[Giaime]

Re: Re: This is the thread where I got the information from.

all-solid-state tube distortion pedal.

What's that? 😀 Solid state or tube?

😉

 

[yeto]

hmmmmmmmmmmmm I wonder how Line 6 does it? Any suggestions on where I might find some of their guitar amp schematics?

Thanks,
Yeto

 

[poobah]

Just bought a line 6 for my daughter... pretty cool.

They "do it" by converting the signal to digital then all kinds of tricks are availabe. Power supply sag, non-linearity, transformer saturation, harmonic distortion can all be modeled.

And, it works... pretty darn well! Now as I told my daughter; it not the same as the real thing... but she can't carry or afford 12 different amps anyway.

😀

 

[leadbelly]

hmmmmmmmmmmmm I wonder how Line 6 does it? Any suggestions on where I might find some of their guitar amp schematics?

They do it all with 24bit DSP, as poobah suggests. A schematic won't help you unless you plan to sample some vintage amps, model them, and then program a microcontroller.

 

[yeto]

Thanks for taking the time to post.

You have answered a lot of questions and I appreciate your help.

Thanks,
Yeto

 

[Giaime]

Me too have a Line6 PodXT, I needed it when I made covers with my band. We covered many songs at the beginning, and we moved toward a Pink Floyd cover band, so lots of effects needed.
Yes it is very cool, and extremely realistic even with bad SS amps (new Fenders, cheap ones).

I've also opened it once and saw that the main processor was Philips brand.

Now that I only play blues and a little jazz I'm thinking about selling it and build a tube amp... too much to carry it around.

(a little OT... you realize that you've spent too much time on hi-fi tube amps when you're looking at a Fender tube amp schematic and say: I would have done it better, what's that? Pentode mode? 12AX7??? 😀 )