Yesterday evening I tried to figure out what prevents the negative phase buffer to get any input (when K6 is in "SE mode" = preventing output to get to the output transformer). I need to try again. But to find out the schematic to look at is the "input relay" schematic (which shows K1 - K5)?
remember that we are still at actual Gen of pcbs
do not write specifically for future ones
for SE input, neg buffer's input is by default grounded ( short between input pads 1 and 3) and K6 is energized, so cutting connection between neg buffer output and neg phase coil of autoformer
K6 coil is together with all input relays schm
K6 contacts are together with input buffers schm
Sorry for deleting previous post... this forum is too quick. 
Here's an updated pic re: K6.
ZM - Noted with thanks as always. Most folks have never seen the previous schematics / boards. I ooked. Same things, but I didn't want to cause any more confusion than I normally do.
Here's an updated pic re: K6.ZM - Noted with thanks as always. Most folks have never seen the previous schematics / boards. I ooked. Same things, but I didn't want to cause any more confusion than I normally do.
Attachments
It is this one:
https://modushop.biz/site/index.php?route=product/product&product_id=450
I ordered this as the basic and then added baseplate + special order back panel.
I build without anything on the front (use digital vol. control from DAC).
But this chassis is still the basic.
https://modushop.biz/site/index.php?route=product/product&product_id=450
I ordered this as the basic and then added baseplate + special order back panel.
I build without anything on the front (use digital vol. control from DAC).
But this chassis is still the basic.
@MEPER - I think there was discussion re: steel vs. aluminum top / bottom panels. So... I am not trying to avoid the question, I just don't know. Also, what's true today, may not be correct tomorrow.
For everyone - Someone that ordered a chassis one or two weeks ago may get a different one than you order. The chassis sold in the store may be different too. Any changes are likely to be minor, but who knows? What I do know is that Gianluca is incredible to work with... and even if the prototype chassis is not exactly what you want, Modushop can likely get it exactly the way you'd like it. The "uniqueness" comes from the artwork, IMO. That artwork can be applied to any chassis, I would guess. See MEPER's great example a page or so ago.
I love that some people are anxious to get their hands on a prototype version and maybe even tweak it a bit for their own needs.
I just updated post #1 to reflect... the chassis is in development. For specifics of your particular order, ask Gianluca. The team working on the chassis has not chimed in often (for good reason). It'll be here ... when it's here. Details will be posted when it's finalized.
Until then, I can't wait to see some of them with full builds inside. 🙂
For everyone - Someone that ordered a chassis one or two weeks ago may get a different one than you order. The chassis sold in the store may be different too. Any changes are likely to be minor, but who knows? What I do know is that Gianluca is incredible to work with... and even if the prototype chassis is not exactly what you want, Modushop can likely get it exactly the way you'd like it. The "uniqueness" comes from the artwork, IMO. That artwork can be applied to any chassis, I would guess. See MEPER's great example a page or so ago.
I love that some people are anxious to get their hands on a prototype version and maybe even tweak it a bit for their own needs.
I just updated post #1 to reflect... the chassis is in development. For specifics of your particular order, ask Gianluca. The team working on the chassis has not chimed in often (for good reason). It'll be here ... when it's here. Details will be posted when it's finalized.
Until then, I can't wait to see some of them with full builds inside. 🙂
Also, both slim line and galaxy. Slimline are all the same width, but a few different depths are listed
As for galaxy, also shows different depths was well. Perhaps only one width as well, so same front and rear panels are appropriate, although several widths are listed....
Now to contact Gianluca!
Russellc
me again
I prefer steel covers, when having signal iron inside
less sensitive to big Donuts in vicinity
I prefer steel covers, when having signal iron inside
less sensitive to big Donuts in vicinity
Ok, steel covers........I ordered a base plate which is steel......so "at bottom" I am safe 🙂
The "Donut" has steel cover......stainless steel......it is not as not as good as "real" steel or course.....but still trafo has magnetic shield......so I think I am safe with alu top.
If Cinemags output transformers makes trouble......I will do the "mu-metal trick"!
The "Donut" has steel cover......stainless steel......it is not as not as good as "real" steel or course.....but still trafo has magnetic shield......so I think I am safe with alu top.
If Cinemags output transformers makes trouble......I will do the "mu-metal trick"!
Attachments
Maybe this foil is even better than mu-metal for our purpose (don't think we have issues with static magnetic fields):
https://pronature24.com/shop/mcf5-m..._dIwCO1w-gSd_Bx5w1rHjcOk6X70V3ljOMipxk0Dp2p-I
https://pronature24.com/shop/mcf5-m..._dIwCO1w-gSd_Bx5w1rHjcOk6X70V3ljOMipxk0Dp2p-I
For clarification... directly pasted from post #431 and depth added to post #1 as promised. Emphasis added is mine.
@6L6 had us produce two versions: the first one is on a Slim Line 2U while the second one on a Galaxy 383.
- Slim Line 2U: 435 (W) x 80 (H) x 170/230/280/350 (D)
- Galaxy 387/383/388: 330 (W) x 80 (H) x 170/230/280 (D)
My kit has arrived today, it was really fast despite non-express delivery 👍
Aha, bold numbers....thanks, either is plenty big for me. I sort of prefer the Galaxy series of cases.
Russellc
shielding - now, please do not overthink that .......... if needed - you all are already having best shield material in abundance
it's called cm of air ........ one shelf step is plenty cms
it's called cm of air ........ one shelf step is plenty cms
Yes, but I like to "overthink".....and now it is DIY. I have some copper tape and mu-metal sheets left.....so why not give Mr. Cinemags flux-bands of copper + mu-metal.......
https://sound-au.com/xfmr2.htm
https://sound-au.com/xfmr2.htm
I ordered the Galaxy 388, 330mm wide x 280mm deep, with all the modifications for a SE chassis. I also had a custom drill pattern done in the bottom to mount boards, which required selecting aluminum top and bottom panels. Haven't it gotten it yet.