Barber Electronics says happy holidays with a circuit!

[Ben N]

I've never considered buying a Barber product before, but after seeing the inner workings of this one, I think I just might.

You should see an actual pedal--they are beautifully built, without so much as a milimeter of extra wire clutter, but all using full size components, not unlike some of Dragonfly's builds. Barber pedals come in very low on the booteek-mojo-BS scale (no unobtainium involved), and very high on the quality-value scale, and they seem well-designed as real-world solutions to real-world needs. I definitely recommend checking them out.

[The Tone God]

Wow! Amazing. As if we needed anymore reason to respect David.

Thanks.

Andrew

[bluesdevil]

Very cool, thank you!!

[runmikeyrun]

I like his style, it's neat to see pedals with internal trimmers so you can get some extra tweaking in.

[cpnyc23]

Barber just moved to the top of my list of pedal manufacturers to support.  The next time I buy I pedal, I promise you , I will look at Barber first.

Thank you
-chris

[cpnyc23]

David....

What are your thoughts on layouts?   If someone designs a layout for the schem, can they share/post in this thread or would you prefer it not be publicly viewable?

Just want to make sure we don't step on any toes and ruin a very very generous gesture.

thanks
-chris

[DWBH]

What's the difference between the silver version and the black one?

[David Barber]

  Happy Holidays Dave Barber, and to all !!
  Nice present ! [for those inquiring about clipping w/midrange, presence etc. there ya' go !
  Who is playin those clips ? Also great instructionals if you can figure out some of the advanced techniques played on some of those clips !
  Railhead: This could be built with 1 dual opamp or 2 single opamps, the pinouts Are Different, and I'd use 1 dual opamp...why not..saves real estate !
 

The clips on my site are by the only player I can afford...me!  ...I am sure they will be the same licks I use on the next 20 pedal demos, I don't have time to learn a few more. I also played a bunch of Tom Anderson's guitar pickup clips using a Silver LTD, here is a link to get an idea what the SLTD sounds like.

One JRC 072 works well for this design, but some players like to sub a Burr Brown chip...whatever sounds good, is good.

[David Barber]

David....

What are your thoughts on layouts?   If someone designs a layout for the schem, can they share/post in this thread or would you prefer it not be publicly viewable?

Just want to make sure we don't step on any toes and ruin a very very generous gesture.

thanks
-chris

Sure make a layout and post it if you like, I won't mind as long as it does not become the next $400 swirly mojo pedal. 

I have changed the black LTD from the original, if you fool around with the EQ using the Duncan tone stack tool, you can find some good starting places and then you go the final distance by ear using extra pots and plug-in caps. For the different LTD versions we change the EQ stack and adjust the 13.3k or the 100p, or the output...The early black LTD had a small series resistor to the input of each of the amps...I just do what my ear likes, and what I can prove will last in use. This is a really simple circuit that is easy to mod, some people might like to put a cap before the 1k from the output of amp 1 to keep the noise off of the tone pot, I like the sound better without the cap, and with a load added to ground and I accept a little noise when turning the tone pot  , if you remove the load then you most likely will want to tame the signal before the input of amp 2, to keep the adjustable RIAA recovery stage from getting squirrely .

Thanks to Faderjockey  (Ronni) from for pointing out a goof on the first post of the schematic, I had a .01 cap noted as a polar cap when indeed it was not...trivial but certainly worth the fix, and of course Ronni enjoyed ribbing me about it!

[David Barber]

Of course I forgot to add the link to the Silver LTD being used for Tom Anderson's pickups.   

http://www.barberelectronics.com/pickuptest.htm

[jimbob]

great. Another pedal to build. Just when I thought I built enough already. Awsome Dave!!! We just need a great layout now. I rarely buy effects these days but i do want to buy the Tone Press. Tons of great reviews!

[mat]

Man, You are a great player  Thanks for the circuit and very inspirational clips. Ok, back to practise 

Matti T.

[slacker]

Cheers for the early Christmas present

[bean]

Here is the first pass at a layout. It is yet unverified, but checks out in Eagle. I designed for a 1590B or 125B so it's not as neat as I'd like, but hey it's just a box, right?

clickey image for biggie

[David Barber]

That looks good, I like the more compact layout for the 1590b! I can't verify it at the moment, I need to merge the layers to be able to run a faster more accurate check of traces, pads and components (I am a little slow on the uptake  . Can we write diystompboxes on the bottom instead of Barber? I don't really want credit on the PCB, it is your art, and hopefully a project this forum can enjoy...great work on the speedy PCB layout!!

[slacker]

I've done a vero layout if anyone's interested. I drew it with plenty of space for the trimmers so you can use whatever style you like, but if you want it a bit smaller use inline trimmers and reduce the width on the right hand side.



Once again thanks to Dave for sharing this.

[teletroy]

I have the Barber LTD, I guess black, and it finally kicked my fulltone fulldrive and fat boost off the board- I love that pedal.  But now I might need to build this, just cuz!

Very freaking cool to post this, but I will still buy more of your pedals cuz I need more, more, more!

Merrry Christmas to you and Ronnie !

[slacker]

Verified 

This is one sweet sounding circuit.

[bean]

I've verified my PCB layout as well. However, I ran into a couple of issues with spacing on the trim pots so I will revise and upload the final version.

[bean]

Here is rev. 1.0. Enjoy.