Rockbox - Boiling Point  [traced]

General documentation, gut shot, schematic links, ongoing circuit tracing, deep thoughts ... all about boutique stompboxes.
User avatar
Barcode
Diode Debunker
Information
Posts: 820
Joined: 27 Sep 2007, 17:03
Has thanked: 14 times
Been thanked: 32 times

Post by Barcode »

I kind of thought that's why the tone pot is 2k, r8 and r10 are keeping the 2k pot fixed within the useful range of a normal 20kW. But then, I'm just guessing...

User avatar
ringleader
Information
Posts: 19
Joined: 26 Sep 2007, 13:02
Has thanked: 1 time

Post by ringleader »

is the vero on page 4 verfied?

User avatar
ShortScaleMike
Resistor Ronker
Information
Posts: 387
Joined: 12 Feb 2008, 14:36
my favorite amplifier: Marshall JCM800
Location: London, UK
Has thanked: 16 times
Been thanked: 93 times
Contact:

Post by ShortScaleMike »

Built it yourself, and if you have issues, debug them from the schematic compared to the veroboard layout.

User avatar
Barcode
Diode Debunker
Information
Posts: 820
Joined: 27 Sep 2007, 17:03
Has thanked: 14 times
Been thanked: 32 times

Post by Barcode »

I've got it wired up with that vero right now, just waiting to grab some toggles and I'll be able to confirm whether it is verified or not.

User avatar
Barcode
Diode Debunker
Information
Posts: 820
Joined: 27 Sep 2007, 17:03
Has thanked: 14 times
Been thanked: 32 times

Post by Barcode »

I had no luck with the vero layout, but I did up a dual layer PCB. If anyone's interested in a 2 layer board, I'll post it.

User avatar
gtfender
Information
Posts: 9
Joined: 04 Apr 2008, 13:00

Post by gtfender »

Barcode wrote:I had no luck with the vero layout, but I did up a dual layer PCB. If anyone's interested in a 2 layer board, I'll post it.
I'm interested. Thanks!

User avatar
Barcode
Diode Debunker
Information
Posts: 820
Joined: 27 Sep 2007, 17:03
Has thanked: 14 times
Been thanked: 32 times

Post by Barcode »

Ok, I'm out of town but I'll try to get it posted on here on Wednesday.

User avatar
jay66
Information
Posts: 2
Joined: 03 Nov 2007, 19:05
Location: Minnesota

Post by jay66 »

I built the vero of this and got clean sound only through it. The volume and tone controls worked but no response from the gain control or clipping switches. I haven't had time to look at it closer.

User avatar
Barcode
Diode Debunker
Information
Posts: 820
Joined: 27 Sep 2007, 17:03
Has thanked: 14 times
Been thanked: 32 times

Post by Barcode »

jay66 wrote:I built the vero of this and got clean sound only through it. The volume and tone controls worked but no response from the gain control or clipping switches. I haven't had time to look at it closer.
That was my experience as well.

User avatar
hbo
Breadboard Brother
Information
Posts: 97
Joined: 10 Apr 2009, 16:46
Location: Oslo, Norway
Has thanked: 28 times
Been thanked: 196 times
Contact:

Post by hbo »

Barcode wrote:
jay66 wrote:I built the vero of this and got clean sound only through it. The volume and tone controls worked but no response from the gain control or clipping switches. I haven't had time to look at it closer.
That was my experience as well.
Hey, guys. I'd love to get the vero layout sorted. I just double checked it against the schematic mostrummer posted (which is what I based this vero on) and it still looks correct to me. I also compared it to the GGG tube screamer schematic and apart from a few small changes the schematic looks good.

The only thing I can think of right now is that we don't agree on how the lugs on a switch are numbered. The vero layout is based on switch lug #2 being the center one and lugs #1 and #3 being the outer ones. Also, did you connect the center lug of the "Bass" switch to the center lug of the "Clip" switch? Without that connection R5 and C3/C14 would be taken out of the op amp stage and I guess result in unity gain only.

User avatar
gtfender
Information
Posts: 9
Joined: 04 Apr 2008, 13:00

Post by gtfender »

Barcode wrote:Ok, I'm out of town but I'll try to get it posted on here on Wednesday.
.....^_^

User avatar
Troll_face
Information
Posts: 20
Joined: 14 May 2011, 08:44
Completed builds: 6n2p valvecaster, bazz fuss, boiling point overdrive, silicon fuzz face, plexi drive, germanium green muff, rust driver, les lius
Has thanked: 7 times
Been thanked: 2 times

Post by Troll_face »

So can anybody tell me if the vero layout is good? Since I've read that a lot of people got problems with it, and it isn't verified.

User avatar
Barcode
Diode Debunker
Information
Posts: 820
Joined: 27 Sep 2007, 17:03
Has thanked: 14 times
Been thanked: 32 times

Post by Barcode »

FINALLY here is that dual layer board I used. It's verified. Don't forget to make the vias.
Attachments
Kelvin.pdf
(206.6 KiB) Downloaded 537 times

User avatar
Troll_face
Information
Posts: 20
Joined: 14 May 2011, 08:44
Completed builds: 6n2p valvecaster, bazz fuss, boiling point overdrive, silicon fuzz face, plexi drive, germanium green muff, rust driver, les lius
Has thanked: 7 times
Been thanked: 2 times

Post by Troll_face »

Thanks for the PCB layout, Barcode. :D But I noticed that it slightly differs from the schematics posted on page 3 of this topic. Which is the real one?

User avatar
hbo
Breadboard Brother
Information
Posts: 97
Joined: 10 Apr 2009, 16:46
Location: Oslo, Norway
Has thanked: 28 times
Been thanked: 196 times
Contact:

Post by hbo »

Verified my vero layout (page 4) today. I had to reorient the drive pot wiring, but otherwise it was working nicely.

User avatar
Barcode
Diode Debunker
Information
Posts: 820
Joined: 27 Sep 2007, 17:03
Has thanked: 14 times
Been thanked: 32 times

Post by Barcode »

Troll_face wrote:Thanks for the PCB layout, Barcode. :D But I noticed that it slightly differs from the schematics posted on page 3 of this topic. Which is the real one?
Yeah, like the vero layout from earlier in the thread I omitted some of the .1uF caps that are unnecessary. Other than that it should match.

User avatar
hotguit
Breadboard Brother
Information
Posts: 69
Joined: 12 Sep 2007, 17:55
Location: earth
Has thanked: 4 times
Been thanked: 4 times

Post by hotguit »

LAYOUT NOT VERIFIED - IT DOS NOT WORK

Hi
here is the layout for boiling point based on schem on page 3
I built it and it does NOT work
It seems ok to me but it does not work. It is quite as a grave, no sound at all (neither ssshhh or hum or anything else; absolute silence)
So can anybody take a look at the layout? Maybe i made a mistake in populating pcb but not sure
thank you
hot
Attachments
render.gif

User avatar
slash555
Information
Posts: 26
Joined: 16 Jul 2009, 16:56
Been thanked: 1 time

Post by slash555 »

i tried that layout some time ago and didnt worked for me as well

User avatar
hotguit
Breadboard Brother
Information
Posts: 69
Joined: 12 Sep 2007, 17:55
Location: earth
Has thanked: 4 times
Been thanked: 4 times

Post by hotguit »

I made it modyfing a landy dod layout.
can you explain?
thanks
hot

User avatar
hotguit
Breadboard Brother
Information
Posts: 69
Joined: 12 Sep 2007, 17:55
Location: earth
Has thanked: 4 times
Been thanked: 4 times

Post by hotguit »

nobody wants to take a look at the layout?
hot

Post Reply