Hermida/GGG Reverb

Stompboxes circuits published in magazines, books or on DIY electronics websites.
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telecaster
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Post by telecaster »

Brilliant. :D
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Post by Paul Marossy »

I ordered my GGG kit the other day, just to satisfy my own curiousity about this Belton DigiLog reverb brick. I also need some sort of reverb when I am playing my amps that don't have a built in reverb. So I will kill two birds with one stone. :P
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Post by Scruffie »

I'm also curious about it Paul (and being in the U.K me ordering from small bear is a rare and specialist occasion) so if you could, i'd love to hear how you find it!

Cheers,
Scruffie.

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Post by Paul Marossy »

Scruffie wrote:I'm also curious about it Paul (and being in the U.K me ordering from small bear is a rare and specialist occasion) so if you could, i'd love to hear how you find it!
I will do that.
ibodog2 wrote:Poplulated the reverb board last night and should get a chance to wire it up to test the reverb in the next couple of days. I put sockets in for the IC's like I normally do, but there's not quite enough clearance to attach the reverb module parallel to the board with the sockets, so I may have to remove them.
I was wondering if there would be enough room between the PCB and the reverb brick for and IC socket. That confirms my hunch that there wouldn't be...
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Paul Marossy
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Post by Paul Marossy »

ibodog2 wrote:
Paul Marossy wrote:I was wondering if there would be enough room between the PCB and the reverb brick for and IC socket. That confirms my hunch that there wouldn't be...
I could solder the reverb brick in because the pins will just fit, but I can't get the boards perfectly parallel. I might still do it this way if the entire assembly will fit in the enclosure this way.
I know what you meant. :wink:

It's not necessarily an issue for me because I actually want to put this thing into an old tube amp I have. An experiment of sorts, if you will. :hmmm:
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Post by Paul Marossy »

I put mine into an old tube amp that I have. I think it sounds great!
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Post by jfromel »

I am building up a stereo unit right now, I am going to add a tone control to each channel as well, should be a fun project.

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Coma
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Post by Coma »

Finished this pedal yesterday.
I've only built a handful of pedals before but this one was not too hard and turned out fine.
Probably the same pedal as the Mr Springgy from Lee Jackson.
Great reverb for very little money. Highly recommended.

I took the Obama one trillion bill as a nod to Landgraff, but that's just me.

I followed the instructions and it's working perfect. I do find I get too much reverb effect with the mix knob at 9 o'clock. Somewhere between 8-9 is the sweet spot. Would a different pot give me a more even effect?

Two resistors were wrong. R8 and R11 (10k & 470E). I found some cheap beige (carbon film??) resistors I had home. Would that make any difference?

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Post by Paul Marossy »

Coma wrote:Finished this pedal yesterday.
I've only built a handful of pedals before but this one was not too hard and turned out fine.
Probably the same pedal as the Mr Springgy from Lee Jackson.
Great reverb for very little money. Highly recommended.

I took the Obama one trillion bill as a nod to Landgraff, but that's just me.

I followed the instructions and it's working perfect. I do find I get too much reverb effect with the mix knob at 9 o'clock. Somewhere between 8-9 is the sweet spot. Would a different pot give me a more even effect?

Two resistors were wrong. R8 and R11 (10k & 470E). I found some cheap beige (carbon film??) resistors I had home. Would that make any difference?
You could try using a log pot instead. That would chnage the taper so the reverb mix is increased more towards the end of the taper and less at the front end.
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http://www.diyguitarist.net

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Post by phydauex »

Whipped one of these out today. Can never wait for the paint to totally dry on the enclosures, but.... It sounds really good, and worked w/o a hitch.

A few notes however....
cheap Chinese enclosures, 2 of the screws are unuseable as the slots are filled with metal.
using the caps provided, the pins of the Brick would not reach the pads to solder. Had to
remove the two 47uf caps and lay them on sides, then brick reached just fine.
Attachments
sm dverb.JPG

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Post by kurtlives »

A comments on how this pedal acts when a buffer is in front?

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Post by B_of_H »

how about a gut shot of a finished pedal?

also, would it possible to wire to seperate pots to a 3dpt switch to go from two different settings? (with an LED indicator for each)

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Post by B_of_H »

I just ordered the ggg kit.

I'm going to try to squeeze it into a 125b box without a switch (and perhaps without an LED) and I'll report back.

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Post by Barcode »

Anyone have a schematic? I'd really like to make my own layout and just buy the brick, since SB stocks it and the kit is outrageously priced IMHO.

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Coma
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Post by Coma »

check generalguitargadgets.com
online instruction, schematics ...

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Post by B_of_H »

the kit was $59 with shipping (without enclosure).

that is close enough for me. I figured the parts would cost me about $45 or more with shipping.

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Post by kurtlives »

How is the noise level of this circuit?

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Post by B_of_H »

finished this kit friday and it's as good as advertised imo. Perhaps the best decay of any reverb i've tried. It just sounds like the reverb I want hear; not too boingy or deep. I a/b'd this with a laney lc50 (accutronics short tank), a reverend hellhound (short tank), and a 2002 fender hot rod deluxe (omega modded). the digital reverb sounded even 'better' than all these amps real spring reverbs. I could lay more reverb on without it getting annoying and over the top sounding but it sounds like a real spring tank, IMO of course.

the pcb actually mounts to the module's bottom side. I used some larger caps and put them in flat on their sides in some places to make for a smaller package. I fit it in a 125b box but without a switch. FWIW I haven't been able to detect a change in tone when the reverb is at 'o' on the mix knob and i'm flipping back and forth on a true bypass loop pedal.

no noise so far...I haven't tried it at gig volume yet but I have 8 gigs in the next month booked so i'll be able to report back with some real world testing soon.

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Post by B_of_H »

put up a demo of the reverb (along with a demo of my rebote 2.5 based delay)

www.myspace.com/hendrickspedals

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kurtlives
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Post by kurtlives »

Sounds pretty good, quite convincing.

What brick did you use, the short, medium or long style?

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