Rockbox - Boiling Point  [traced]

General documentation, gut shot, schematic links, ongoing circuit tracing, deep thoughts ... all about boutique stompboxes.
Scruffie
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Post by Scruffie »

The Rotagilla wrote: Understand and agree about the stress point. Sort of agree about being a time saver plus in the end, the extra PCB's are an added expense.
Yeah the extra PCBs are an expense, but in bulk, they probably save more time and money than they would without, makes it look nice and clean too, just all adds to a smooth assembly I imagine which for someone that may be doing a large quantity of these, is probably going to be very thankful for.
Respectfully disagree on this one. Desoldering small components is one thing, but I've found that desoldering something larger (like a 3PDT) from the thru hole PCB can tear up the pads which could result in a less than clean looking repair. Personally I would have gone with PCB pin style 3PDT's, there's less open space between the pad and point of contact which makes for less solder to be removed should it need to be replaced.
Well the Jacks will have PCB Pins so they're alright but you might be right about the switch, i've never had the issue but I do hear of it, but as I said before in bulk those little PCBs aren't gunna cost much (Smallbear sells 3PDT PCBs for $1 and he has to make a profit) a few extra dollars wont matter if they feel it makes the assembly easier and with the added stress relief, hopefully the parts wont fail anyway.

Barcode
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Post by Barcode »

Also, since we can't really see the underside, there could be a molex connector on each of those boards. Makes replacing a jack a solder free 10 second repair.

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Post by Barcode »

The Rotagilla wrote:
Scruffie wrote:It takes stress off the main board from the switch being stomped on, jacks being wiggled in etc. so it's actually kinda a time saver in the end.
Understand and agree about the stress point. Sort of agree about being a time saver plus in the end, the extra PCB's are an added expense.
Scruffie wrote:Plus for repairs you wouldn't really need to replace the PCB, just de-solder and replace the part.
Respectfully disagree on this one. Desoldering small components is one thing, but I've found that desoldering something larger (like a 3PDT) from the thru hole PCB can tear up the pads which could result in a less than clean looking repair. Personally I would have gone with PCB pin style 3PDT's, there's less open space between the pad and point of contact which makes for less solder to be removed should it need to be replaced.
I don't think it's meant like that. Most likely they just remove the switchboard all together and pop in a new one. So no need for special switches.

Scruffie
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Post by Scruffie »

Barcode wrote:
The Rotagilla wrote:
Scruffie wrote:It takes stress off the main board from the switch being stomped on, jacks being wiggled in etc. so it's actually kinda a time saver in the end.
Understand and agree about the stress point. Sort of agree about being a time saver plus in the end, the extra PCB's are an added expense.
Scruffie wrote:Plus for repairs you wouldn't really need to replace the PCB, just de-solder and replace the part.
Respectfully disagree on this one. Desoldering small components is one thing, but I've found that desoldering something larger (like a 3PDT) from the thru hole PCB can tear up the pads which could result in a less than clean looking repair. Personally I would have gone with PCB pin style 3PDT's, there's less open space between the pad and point of contact which makes for less solder to be removed should it need to be replaced.
I don't think it's meant like that. Most likely they just remove the switchboard all together and pop in a new one. So no need for special switches.
Either way, a quick repair.

MarkF786
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Post by MarkF786 »

I have a Rockbox Boiling point and it appears to be just a modified TS (like the Landgraff OD or CJOD) though the clipping section has me a bit perplexed. I tried to trace out the clipping section which has a three-way switch: one position is supposed to be symmetrical, one position is no clipping (ie. a boost), and one position is supposed to be asymmetrical. I've included my primitive drawing below since I haven't yet found software that makes it easy to create simple schematics. I'll admit I'm a newbie, though I have some background in electronics: 2 years in an EE program (until I switched to Comp. Sci.), building pedals from Craig Anderton's book as a teenager, and more recently building various pedal kits and doing mods - and I'm now in my late 30s.

If anyone is interested in dissecting the pedal, I could take pictures or ship the pedal for analysis (though I'd want it back). I suspect that a slightly modified BYOC OD2 could be made into a Boiling Point. If you're interested, please let me know.

Image

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Hides-His-Eyes
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Post by Hides-His-Eyes »

One direction is 3v1 assymetry, the other is even LEDs; I expect that's probably the only difference between this and any other TS clone except maybe for tonestack values or anything.

Is it expensive? Well built?
Testing, testing, won too fwee

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culturejam
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Post by culturejam »

Hides-His-Eyes wrote:Is it expensive? Well built?
It's expensive. $350 :roll: :shock:

Not sure if it is well built or not. It's probably not bad.

MarkF786
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Post by MarkF786 »

3v1 assymetry - Can you explain?

It's expensive. The build quality is typical discrete components on a PCB. What probably adds to the cost is the paint job.

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modman
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Post by modman »

Threads merged...
Please, support freestompboxes.org on Patreon for just 1 pcb per year! Or donate directly through PayPal

JimiB
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Post by JimiB »

3-v-1 asymmetry is one diode on one side and three diodes in series on the other side.

Barcode
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Post by Barcode »

Any more work on this one? It has piqued my interest...

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Post by donutsdad »

Does anyone have a pic where you can see the cap values? Would love to help draw up an actual schematic. Thx

mostrummer
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Post by mostrummer »

I drew this up a while ago based heavily on a popular tube screamer schematic on line and then modified to match the one BP I had if anyone wants to take a look:

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Post by mostrummer »

And parts:

Code: Select all

Part     Value            Device       Package       Library               Sheet

+9V      +9V(T)           +9V(T)       SQUARE        gm-supply             1
C1       .022uF           070X0302     070X030       gm-caps-film-chicklet 1
C2       1uF WIMA MKS4    072X0352     072X035       gm-caps-film-box      1
C3       .47uF            070X0302     070X030       gm-caps-film-chicklet 1
C4       51pF             050X030_0252 050X030_025_2 gm-caps-ceramic       1
C5       .15uF            070X0302     070X030       gm-caps-film-chicklet 1
C6       .15uF            070X0302     070X030       gm-caps-film-chicklet 1
C7       1uF WIMA MKS4    072X0352     072X035       gm-caps-film-box      1
C8       .1uF             070X0303     070X030_3     gm-caps-film-chicklet 1
C9       10uF tant        0501         050_020_1     gm-caps-electro-pol   1
C10      100uF            0631         063_025       gm-caps-electro-pol   1
C11      47uF             050          050_020       gm-caps-electro-pol   1
C12      0.1uF            050X030_0251 050X030_025   gm-caps-ceramic       1
C13      0.1uF            050X030_0251 050X030_025   gm-caps-ceramic       1
C14      .22uF            070X0302     070X030       gm-caps-film-chicklet 1
C15      0.1uF            050X030_0251 050X030_025   gm-caps-ceramic       1
C16      0.1uF            050X030_0251 050X030_025   gm-caps-ceramic       1
C17      0.1uF            050X030_0251 050X030_025   gm-caps-ceramic       1
C18      0.1uF            050X030_0251 050X030_025   gm-caps-ceramic       1
D1       4148             1N914.2      DO35-2        gm-diodes             1
D2       4148             1N914.2      DO35-2        gm-diodes             1
D3       4148             1N914.2      DO35-2        gm-diodes             1
D4       4148             1N4148-2     DO35-2        gm-diodes             1
D5       LED5MM           LED5MM       LED5MM        gm-diodes             1
D6       LED5MM           LED5MM       LED5MM        gm-diodes             1
D7       1N4004           1N400X.3     DO41-3        gm-diodes             1
DRIVE    A1M - detented   POT16MM      16MM          gm-pots               1
GND      GND(T)           GND(T)       SQUARE        gm-supply             1
IC1      RC4558P (TI)     LM4558N      DIL08         gm-ics                1
IN       IN(T)            IN(T)        SQUARE        gm-supply             1
LEVEL    B100K            POT16MM      16MM          gm-pots               1
OUT      OUT(T)           OUT(T)       SQUARE        gm-supply             1
Q1       MPSA18 Fairchild 2N3904       TO92-         gm-trans              1
Q2       MPSA18 Fairchild 2N3904       TO92-         gm-trans              1
R1       1K CC            6MM.3        R0207/3       gm-resistors          1
R2       620K             6MM.3        R0207/3       gm-resistors          1
R3       10K              6MM.3        R0207/3       gm-resistors          1
R4       10K              6MM.3        R0207/3       gm-resistors          1
R5       1k CC            6MM.3        R0207/3       gm-resistors          1
R6       10k              6MM.3        R0207/3       gm-resistors          1
R7       1K               6MM.3        R0207/3       gm-resistors          1
R8       10K              6MM.3        R0207/3       gm-resistors          1
R9       220              6MM.3        R0207/3       gm-resistors          1
R10      1K CC            6MM.3        R0207/3       gm-resistors          1
R11      1K CC            6MM.4        R0207/4       gm-resistors          1
R12      510K             6MM.3        R0207/3       gm-resistors          1
R13      10K              6MM.3        R0207/3       gm-resistors          1
R14      100 CC           6MM.3        R0207/3       gm-resistors          1
R15      10K              6MM.3        R0207/3       gm-resistors          1
R16      10K              6MM.3        R0207/3       gm-resistors          1
R17      10K              6MM.3        R0207/3       gm-resistors          1
R18      4.99M            6MM.3        R0207/3       gm-resistors          1
SW1      On/On            SPDT         M9040P        gm-switches           1
SW2      On/Off/On        SPDT         M9040P        gm-switches           1
TONE     B2K              POT16MM      16MM          gm-pots               1

LaceSensor
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Post by LaceSensor »

Dont see why people care so much about bloody overdrive pedals, less so TS-alikes.

a big fat ZZZZZZZZZZZZZ from me.

WhiteKeyHole
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Post by WhiteKeyHole »

That's cool, but why belittle this member's contribution? If you really don't care, don't post about it.

:roll:

LaceSensor
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Post by LaceSensor »

Yeah sorry i didnt think about it like that.
Guess its just frustrating loadsa fuss over generic overdrives and more esoteric effects sit un-DIY-able

I take it back. My grandma died two days ago i am not really thinknig straight.

mostrummer
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Post by mostrummer »

LaceSensor wrote:Yeah sorry i didnt think about it like that.
Guess its just frustrating loadsa fuss over generic overdrives and more esoteric effects sit un-DIY-able

I take it back. My grandma died two days ago i am not really thinknig straight.
No worries. Sorry about your loss.

FWIW its a great sounding TS.

WhiteKeyHole
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Post by WhiteKeyHole »

LaceSensor wrote:Yeah sorry i didnt think about it like that.
Guess its just frustrating loadsa fuss over generic overdrives and more esoteric effects sit un-DIY-able

I take it back. My grandma died two days ago i am not really thinknig straight.
I understand your frustration but esoteric is exactly the operative word. It's no surprise that those things that are not the majority's interest do not demand the majority's attention.

My condolences about your family member.

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Post by LaceSensor »

Im half interested to make a Honey Bee Overdrive just to see what the fuss is about, but normal TS variants dont do anything for me really :)

IF this one brings up some awesome mods or tweaks that make it sound great then thatd be cool.
I guess im just too cynical - $350 (!)

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