Ok, I see where the misunderstanding is (thanks for the pic). Here is the change:
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Yup, that is completly safe. Just changes response to loads.
Woo! Finally finished the base Crack. I will be starting the speedball upgrade tomorrow. And will eventually get around to staining the wood.
Does anyone else get a ringing sound on one of the channels when tapping anywhere on amp? The amp is otherwise very quiet. I haven’t found any posts describing this issue.
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The ringing is just the valves being microphonic.
The little metal parts inside vibrate, and act like a microphone.
Some valves are worse than others, if it’s really bad, you can get little damping rings, but some ringing is normal.
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Tubes in general don’t like vibrations. Like, you don’t put a tube amp on top of a speaker lol. Just don’t tap on it.
I had this lying around. https://www.target.com/p/scotch-194pk-surface-protection/-/A-52575188
I put the cork on the bottom of the rubber feet and that actually helped. I also put cut the smaller foam pieces in half and used it on the rabbet edge to cushion the chassis. It seemed to do the trick while I decide on a long term solution.
I used to hear everything every time I touched my desk, now I don’t have that problem.
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There are some tubes that will p/u on the microphonics more than others. You might see it go away once you start your tube rolling journey.
I had some microphonics when tapping my desk so I replaced the rubber feet with these. They are much more flexible and absorbent. I think the ones in this link might be too big though. Just find the same thing in smaller diameter.
https://amazon.com/gp/product/B075KM5Y8W/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
Sorbothane is really good for absorbing vibrations.
I got the notice last night that my kit was shipped. I cant wait to procrastinate building it!
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BIG shoutout to @A_Jedi for building my Crack + Speedball + Mods for me. He did a stellar job with the build and his attention to detail is top notch. Very pleased with the results!
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Thank you sir. I should have done the OCD wiring on mine but I couldn’t wait to hear it. OCD wiring takes soooooo much longer. I contemplated swapping my amp for @Wesley ‘s for about a minute 
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Looks super good 
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Cool job. Wish mine was as clean.
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So you don’t feel so bad, they are delicious eye candy, but they don’t actually sound any better. lol
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Tip for anyone starting a build. You definitely wants a pair of fine tipped cutters like this. I initially only had a pair that was bulky and dull
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the white standoffs where you mounted the caps, did you glue them or did you use a bolt from the top? Getting them higher like that is the only way to give yourself some additional clearance. Your solution is a hell of a lot more elegant than what I wound up with. I just used I just wound up using wire tie double sided mount and then a foam spacer to get the right height.
I used these:
https://www.amazon.com/gp/product/B08FJ364C1/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1
They have various lengths and both plastic and metal pieces. I used metal bolts through the chassis with plastic standoffs. The plastic standoffs are so the cap brackets aren’t grounded - this will not have any bearing on anything but it’s clean underwear.
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That’s a fine idea. I find not enough people use these:
heat sinks (keep from roasting small parts)
or
soldering guns with adjustable temp (roast or not roast depending on need).
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