That's a relief. This amp will destroy any headphones you plug into it.TypodCrow said:
Are the 2.49K resistors present on the headphone jack? Can you post some photos of your work? Is the headphone jack grounded exactly as it is in the manual?
Rebuilding a Broken Crack
- Thread starter TypodCrow
- Start date
Are the 2.49K resistors present on the headphone jack? Can you post some photos of your work? Is the headphone jack grounded exactly as it is in the manual?
Pictures are a little hard to snap with the massive caps and the Speedball boards in the way but I'll do my best with the angles I can sneak in. The pictures are taken with Maxhawk's tube switching speedball board installed but the state is the exact same if I use the stock Speedball board. I have ensured I am in 12AU7 mode on the switching board.
Note: All 6 LED's are lit.
Yes they are (picture attached).
No. The jack's S terminals (both) are connected to 12. It is also grounded to 3 (which routes to the volume pot's ground terminal) instead of pulling a wire all the way across from the pot's ground directly. 3 also grounds both speedball boards (that is all ther connections at 3).
The T and R connections of the headphone jack are hooked up to 10 and 6, which are only wired to their respective output caps.
Note: All 6 LED's are lit.
Paul Birkeland said:
Yes they are (picture attached).
Paul Birkeland said:
No. The jack's S terminals (both) are connected to 12. It is also grounded to 3 (which routes to the volume pot's ground terminal) instead of pulling a wire all the way across from the pot's ground directly. 3 also grounds both speedball boards (that is all ther connections at 3).
The T and R connections of the headphone jack are hooked up to 10 and 6, which are only wired to their respective output caps.
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I think i know what it is. The resistors only cut across the headphone jack, but don't ground to the sleeve pin. I'm going to short the three right side pins of the headphone jack (view orientation of the picture attached in my last reply to this thread). That will solve it.
Dumb derp; my apologies.
Dumb derp; my apologies.
Yes, that's the issue. In Crack 1.0, these resistors go down diagonally to the sleeve terminal, then in 1.1 we ground out all of the terminals that are shorted when no headphones are plugged in, then connect the resistors to this ground.
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