SissySIT R.3

[sp33ls]

I'm interested in using those new Modushop mono blocks. Think it'll be sufficient cooling for the THF-51S?

 

[chede]

It's a 4U400 ..., so, yes. A one-sided Mono Block chassis will be sufficient for one channel of SissySIT ...

Regrads, Claas

 

[Zen Mod]

I'll be able to pack two channels dual mono, in that one

Donuts stacked , cap bank pcbs stacked

no biggie

 

[sp33ls]

I was just thinking that, I'd love to be able to fit it all in a four heatsink version of a single monoblock. While I have a nice power drill, I don't have a drill press (or a shop for that matter)

So, I'm wondering if I'll be better off going with the Deluxe 4U from the DIYA store, since they offer a version with just about everything pre-drilled. I don't believe the monoblocks have that option do they? Or maybe it can all be done with patience and a power drill on a monoblock chassis? Lol

I very much prefer playing with PCBs over metalworking due to apartment dwelling

 

[twitchie]

You'll still need to drill the mounting holes for big Tokins even with pre-drilled heatsinks. The pre-drilled holes are only for the UMS standard pattern and will not include (big) holes for elevator shakers (Tokin SIT)

 

[myleftear]

And, if you’re doing it really carefully, you can tap those M3 holes, even blind holes… it takes patience though.

 

[sp33ls]

Ah, thanks for pointing that out. I think I'll go ahead and pre-order one of the MonoBlock 4U 400 with four heatsinks, with the plan to stack two toroidals. Tho, I need to still source those toroidals, alongside PSU caps.

 

[Zen Mod]

co/incidentally - SissySIT pcbs are UMS, but their holes are going, if care is taken, exactly between heatsink fins ...... so one doesn't need making blind holes and taps

 

[sp33ls]

Looks like Modushop has the option to substitute heatsinks for UMS. Looks like I should probably add this option to make my life easier?

 

[Zen Mod]

yes, just SIT holes/taps then

 

[Dennis Hui]

elevator shakers (Tokin SIT)

The elevator music coming from the Tokin SITs?

Actually what is the mounting hole size for the Tokins? Is it M4?

Thanks,
Dennis

 

[Ben Mah]

Yes, M4, and these are the shoulder washers that I used:

https://www.mouser.ca/ProductDetail/Keystone-Electronics/3105?qs=mj8EgzjLv%2BDhOQJUUpCPag==

 

[Dennis Hui]

Thank you Ben.

 

[nautibuoy]

And, if you’re doing it really carefully, you can tap those M3 holes, even blind holes… it takes patience though.

and a good quality tap/drill guide

https://biggatortools.blog/what-is-a-tap-guide/

 

[myleftear]

Certainly very helpful! (I did without, 1 tap of ca 20 failed ≈ 95% success)

 

[Ben Mah]

I don't have a drill press so I use a Big Gator Tools guide (Mini V-drill) to square up my drilling and tapping too.

 

[Plott]

Hi ZM,
I could get 2 pcs. "rough matched" and somewhat rusty (!?) 2SK182ES from a recommended reliable source, without data.
Would it be okay, or are matched thingies required?

 

[guyome]

No matched version needed for the R.3 version

 

[Zen Mod]

matched are good, but not necessity


whichever you get, it is applicable in R.3

 

[Plott]

Thank you both!