Wampler - PINNACLE II  [traced]

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

here u go guys :wink: (I didn't verify it yet)
parts in grey are differences between BSIAB II
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mrkaploca
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Post by mrkaploca »

Sorry, made a mistake in the title :it should be WAMPLER -PINNACLE II (not WAPLER :oops: :D )
Mr. Modman,can u please make a corretion?

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culturejam
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Post by culturejam »

Fixed.


Do you have gut shots to go along with the schematic?

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mrkaploca
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Post by mrkaploca »

Unfortunately no.I didn't trace it-got the schematics.If somebody has a will to verify or already did it,please share!

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Post by Ice-9 »

mrkaploca wrote:Unfortunately no.I didn't trace it-got the schematics.If somebody has a will to verify or already did it,please share!
Not wanting to question the correctnes of the schematic, but i'm sure I have seen this drawing a long time ago in connection with mods to the BSIABII. Unless the person that drew this schemo can confirm he traced it himself from a Pinnacle II I doubt the authenticity of it. Thanks for posting all the same.
It's fairly straight forward, if you want to start it , press start. You can work out the rest of the controls for yourself !

No silicon heaven ? preposterous ! Where would all the calculators go ?

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mrkaploca
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Post by mrkaploca »

We'll have to breadboard it and see.I hope I'll havee time these days to do that :wink:

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Post by Ice-9 »

mrkaploca wrote:We'll have to breadboard it and see.I hope I'll havee time these days to do that :wink:
Yeah I was thinking the same, I have redrawn the schematic around the tone section a way that is better for me to follow and it looks quit nice. Also after having a look at the Pinnacle 2 in pictures it could indeed turn out to be the correct circuit. Does anyone know what fets brian has used in this pedal ?
It's fairly straight forward, if you want to start it , press start. You can work out the rest of the controls for yourself !

No silicon heaven ? preposterous ! Where would all the calculators go ?

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mrkaploca
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Post by mrkaploca »

Those are J201

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Post by Blend »

I built this pedal more than a year ago, not bad, good tonal range, but for my kind of music was found to be "neither fish nor fowl."
I consider Brian a great builder and improver circuit and if so far in discussions on this pedal he was silent .... I respect that.
I checked the circuit and comparing it with the help of good photos and photoshop and I can only say that "for me" the scheme is ok
but there are several bogus values ​​for the drain JFET resistance and little on the capacitors.

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Post by Dirk_Hendrik »

The authenticity.. whatever. Can't say.

What I don't get in this circuit is the 2 switches for the boost. In this configuration there will be a major "pop". Any designer with insight will use that switch to parallel a resistor to the 10k's to get an effective parallel resistance of 1k. And no pops.
Same for the vint/mod switch which should be bypassed with a 1M+ resistor to avoid pops.
Sorry. Plain out of planes.

http://www.dirk-hendrik.com

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Post by marcelosaguiar »

Guys, anyone know where can I find the layout of the building pinncle?? A link that has already helps as well.

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alexradium
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Post by alexradium »

i have seen one of the latest ones.
i can tell you guys that its not that far from the schem in this post.
the boost actually is done adding in parallel to the 10k source resistors those 1k.
as BW stated in his posts,voltages on j201s have to be somewhere between 4 and 5v,so you have to tweak those 15k res to get there,the one i have has 4v on Q5 and Q6,4,3v on the 2 mu amps.
another tip from the man himself that i heard in some topic,was adding a cap in front of the first mu amp,22 nF?,and a 1M to ground.
instead of the diode in series i found a 10 ohm res,diode comes after this to ground.
voltage divider before Q6 is 220/220k

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Post by vitek »

I have Schematic Wampler Pinnacle LE Serial Number 1001807 :)
Attachments
Pinnacle-1.jpg

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vitek
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Post by vitek »

Foto
Attachments
PICT0007.JPG
PICT0006.JPG
PICT0004.JPG
PICT0002.JPG

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quaternotetriplet
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Post by quaternotetriplet »

one of the best sounding box out there.. keep them coming.

vitek, plexitortion schem would be appreciated.. :applause:

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Post by mrkaploca »

quaternotetriplet wrote:
vitek, plexitortion schem would be appreciated.. :applause:
:thumbsup

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Post by alexradium »

vitek wrote:I have Schematic Wampler Pinnacle LE Serial Number 1001807 :)
so this LE version has a different switching for boost,the 470r are added in parallel via the fets to avoid switch pop,and last stage is the opamp with a variable gain instead of a jfet.

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Post by andreaps72 »

For a Vero board layout?

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Post by Chugs »

I am bit confused by the connections to the Contour control. Are all points meant to connect as drawn on the schematic? I ask as the gain trimmer off the negative input of the opamp appears to connect with the positive input of the opamp which shouldn't be the case. As such it makes me question which points are meant to be connected around the contour control. Can anyone clarify this for me?

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Post by alexradium »

the last schematic doesn't show where the wires connect and where crossover,refer to the first one posted to understand the tone network

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