Bob: Nope, never messed with Shalco's but from what you've said, the tension must be pretty high. From what i can gather, you're using the larger diameter knob as sort of a "gear reduction torque multiplier". In this case, form follows function, so i can understand the use of such a part. I know from what you've told me, those knobs and the entire chassis is PHENOMENALLY expensive to have machined. I also know that you don't like to throw money away on unnecessary items, so i knew there had to be a reason for it. Thanks for the explanation.
As a side note, i've made similar comments about Atma gear i.e. that if the looks of this gear are directly related to how it sounds i.e. "form following function", leave it alone. Otherwise, i don't exactly like the "vintage sci-fi submarine" and / or "electronics lab as seen in 50's & 60's B-movies" cosmetics of these amps, etc... From what Rushton recently posted in another thread here on Agon, it looks like Ralph has come out with some newer designs that are more cosmetically appealing.
The "funny" thing is, the CTC and Atma product lines are both excellent products built by people that i have a lot of respect for. Sorry for stepping on your toes, guys : ) Sean
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PS... I wear a size 15 EEEE shoe and Crump's "monster sized"* feet make mine look like i'm wearing doll shoes. As such, i might only have stepped on one or two of Bob's toes whereas i might have covered up Ralph's entire foot : )
* I'm not aware of any trademarks of that term, so i think i'm safe in using that description : )