Wampler - Tweed '57  [traced]

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

I just picked up this pedal last week, and it sounds fantastic. Brian did an outstanding job on this pedal.

Anyway, I though I would post some pictures.....

Image

Image

Image

Image

I might try my hand at tracing this....I have never done it before.

thanks,

George

Mbas974
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Post by Mbas974 »

Wow... this pedal souding totally amazing !
Thanks for the images.
Is it possible to have also the right side :-)

The parallel j201 remember me the Crancked AC... maye he started from that.
tx

indybeez
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Post by indybeez »

Mbas974 wrote: Is it possible to have also the right side :-)
Let me know what exactly you want a picture of, and I will try to zoom in.

thanks,
George

indybeez
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Post by indybeez »

Oh....I just looked at this post on my iPad, and see the bigger photos are cut in half. I will repost shortly.

sinner
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Post by sinner »

indybeez wrote:Oh....I just looked at this post on my iPad, and see the bigger photos are cut in half. I will repost shortly.

They're fine bro, but uploading them (attached to the post) is better idea

lukatosh
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Post by lukatosh »

we need photos of traces under the potentiometers, photos of capacitor values...everything always needed :)

thanks so much!

indybeez
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Post by indybeez »

I didn't unsolder the pots...I could just bend them out of the way. I did have to unsolder the LED in order to see behind the middle pot.

Here you go...enjoy.

Image

Image

Image

The last photo is a composite using my pitiful photoshop skills. You can see the whole solder side, except for beneath the toggle switch.

Image

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Post by lukatosh »

wow!, thanks man!

could you take a picture or take note about the capacitors values?

thanks so much!

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Post by grrrunge »

Piggybacked J201's :?: Interesting...
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Mbas974
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Post by Mbas974 »

Excellent !

Could be possible some picture of front part also ?
as said above
nice to have red caps value too !!

Many thanks in advance

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Post by Mbas974 »

I just noticed that downloading the picture these are complete, not like seems on the forum.
So no more pictures are required. discard previous request same subject.


There is one IC on the top right side, diode/optocoupler... wha else can you tell us more about it ??
Red cap values are required indeed...

:thumbsup

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grrrunge
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Post by grrrunge »

The print on the enclosure says "Vintage American Tone Structure", but the pot values are a perfect match for a scaled marshall tonestack :hmmm:
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Post by alexradium »

grrrunge wrote:The print on the enclosure says "Vintage American Tone Structure", but the pot values are a perfect match for a scaled marshall tonestack :hmmm:
the tweed 59 bassman is the father of all early Marshalls,so yes,you can call it vintage american...

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Post by grrrunge »

alexradium wrote:
grrrunge wrote:The print on the enclosure says "Vintage American Tone Structure", but the pot values are a perfect match for a scaled marshall tonestack :hmmm:
the tweed 59 bassman is the father of all early Marshalls,so yes,you can call it vintage american...
Obviously, amp history isn't my strongest feature :P I just dug out Duncans tone stack calculator, and compared the gut shots pot values with the standard models in DTSC
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caspercody
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Post by caspercody »

Hope this helps to get the schematic started. The straight lines represent resistors. The rectangle's, and circle's represent capacitors. The elipse's represent J201.
Attachments
7290474034_30f67aed73_c.jpg

caspercody
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Post by caspercody »

Here is a reverse image to go along with my previous post to start the schematic.
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7287914622_19b11e0b9f_h.jpg

Mbas974
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Post by Mbas974 »

Hi I traced bottom and top frame... the yellow point still uncertain about.
Can you help tracing yellow point ? :hmmm:

I'm goin to put res values stay tuned :-) :horsey:

sorry for attachment but I do not now how to post here images fro my PC :slap:

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Post by Mbas974 »

[img]C:\Documents%20and%20Settings\Administrator\Desktop\Tweed57.png[/img]
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Tweed57.png

Mbas974
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Post by Mbas974 »

it's too late for the resistor coding..... need the sun light :-)) (tomorrow will have less error possibility)
Attached so far what I've done... hope it help

Still missing :

1) Electrolitics caps value
2) Polyfilm red caps value
3) IC on the top left position name or value
4) Trans should be all J201 (pls confirm)

Indibeez, you are our eyes, pls let us see the light !

good night dyers!!!
Attachments
Tweed57 v2.png

indybeez
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Post by indybeez »

I have added the markings on the orange caps to the picture....but didn't look up the values. I did add the values of the Electrolytic caps. The transistors are all J201 (with the addition markings of F BB25). The other chip in question is marked IRFD9024, with AE, and R06K below.

Also, though not easily seen on the photo, it appears that the number three lug of the A100K bass pot is soldered to the same solder-side trace as the number two lug.

What else do you need?

thanks,
Attachments
TWEED 57 CAPS.jpg

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