Himmelstrutz Gramps [degooped]  [traced]

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

6154940690_749538449b_b.jpg
Chipped away at this thing for about an hour with the pick that came with a Rat Shack iron I bought a couple years ago and got most of the goop off. Two resistors were wrapped in heatshrink under the goop and all of the film capacitors have the markings sanded off. The ceramic cap is painted black. I've got an LCR meter coming in the next week to measure them all. Looks like there are components under the jacks too so I'll have to remove those as well. Will get better pics up tomorrow when there's better light.

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Post by RnFR »

well, we can give him an A for effort, but it looks like mr. metalrax is goin to come out on top! nice work, sir.

sorry, that's what I thought you're name was til about 2 weeks ago.
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mmolteratx
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Post by mmolteratx »

FInally got around to measuring some values and getting new pics. I'm having trouble with the jacks and the lead free solder though. Will attempt again tomorrow since there are some components underneath. What I've got so far (numbering matches board):

C1: measures 2.292n, 2n2
C2: measures 223.6n, 220n
C3: jumper
C4: measures 9.628n, 10n
C5: measures 97.81n, 100n
C6: measures 4.778n, 4n7
C7: empty
C8: 100uF
C9: measures 97.37n, 100n
C10: 100uF
C11: measures 43.8p, 47p

R4: measures 55.87k, 56k
R6: empty
R9: measures 468.8R, 470R
R12: measures 38.86k, 39k
R14: measures 99.12k, 100k
R18: empty

L1: measures 21.79k, 22k
L2: measures 9.893k, 10k
gramps_02.jpg
gramps_03.jpg

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mmolteratx
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Post by mmolteratx »

Oh, forgot the pot values.

P1: A100k
P2: A500k
P3: A50k

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Post by candletears7 »

Stellar effort there mate - that's commitment when you strip out the board of a $300 Himmel!

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mmolteratx
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Post by mmolteratx »

Actually, I grabbed this one for $150 on TGP. Was a little beat up and missing the screws to the bottom plate. Figured it would be a good first degoop with a not so bad investment and a relatively simple circuit. This lead free solder is killing me though. :lol: Need to run by Radio Shack and just get a ton of flux and copper braid cause I can't find the nozzle for my Hakko pump that will fit over the jack pins. Plus I can replace all of the components with something a little more mojotastic when I'm done. :thumbsup

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Post by azrael »

wow lead free stuff? thats a pain in the ass. If you aren't doing it already, what I do is flow 60/40 into the joint to mix it with the lead free. Much easier to desolder after that.

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Post by mmolteratx »

azrael wrote:wow lead free stuff? thats a pain in the ass. If you aren't doing it already, what I do is flow 60/40 into the joint to mix it with the lead free. Much easier to desolder after that.
Tried it a bit earlier, was much easier. I ran out of braid though and I've got a lecture to go to so it'll have to wait until tomorrow.

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mmolteratx
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Post by mmolteratx »

Finally finished this bitch.
gramps_04.jpg
Rest of the values are:

R1: measures 56.08k, 56k
R2: measures 994.2k, 1M
R5: measures 990.5R, 1k
R7: measures 11.9k, 12k
R11: measures 149R, 150R
R15: measures 11.84k, 12k
R16: measures 993.2R, 1k

D3: jumper

The rest of the components are for Millennium Bypass.

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Post by culturejam »

Edited a few posts to attach the files locally. :thumbsup

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tube-exorcist
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Post by tube-exorcist »

R10 ?
TR1 ?
TR2 ?
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mmolteratx
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Post by mmolteratx »

Oops. :lol:

R10: measures 2.216k, 2k2
TR1: 10k
TR2: 100k

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pamaz
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Post by pamaz »

hello all.
any schematic for this stomp?
Thanks

Paolo

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Post by Saruman_ »

any schematic for this stomp?

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mmolteratx
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Post by mmolteratx »

Well, I misplaced the board and forgot about it until I found it tonight. Schem is attached.
Attachments
Gramps.png

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