Ok, it may even solve the "space problem" regarding R28 (330R) and Cinemag if a smaller resistors is used (I know this has been solved for the next batch of PCB's). So bigger is not always.......better......just go for it
none of resistors is critical regarding dissipation
use smaller as you wish, just don't push bigger fancy drek .......... as some are doing ......... being hypnotized with exclusivity
Larger components could pickup more noise than smaller.
Now we are with components I intend to use 200K (instead of 220K) for the Rin. I have these 200K already. There is also a bypass cap (1 uF) where I found a 2.2 uF that fits the holes I will use instead......as I already have it.
Regarding the Cinemags I wrote to the company and asked more specific for the NiHi core material and got this answer:
"We use Carpenter Hymu80. "Mu-metal" was trademarked by some company many decades ago (which one escapes me temporarily) but they did not aggressively protect the mark and it has become generic. We hydrogen anneal it after the laminations are stamped out with a proprietary process to optimize its acoustic characteristics."
https://www.carpentertechnology.com/alloy-finder/hymu-80
So it is a kind of "mu-metal" they must not just use that "term" as it is "protected".
"Hydrogen anneal"......I used google to find out the "process"......learning something new 🙂
"We use Carpenter Hymu80. "Mu-metal" was trademarked by some company many decades ago (which one escapes me temporarily) but they did not aggressively protect the mark and it has become generic. We hydrogen anneal it after the laminations are stamped out with a proprietary process to optimize its acoustic characteristics."
https://www.carpentertechnology.com/alloy-finder/hymu-80
So it is a kind of "mu-metal" they must not just use that "term" as it is "protected".
"Hydrogen anneal"......I used google to find out the "process"......learning something new 🙂
standard for cables is straight-through (one pin inside, second outside), exactly as shown by IAIMH here: https://www.amazon.com/Sydien-2-54m...6&sprefix=female+2.54mm+14+pin,aps,119&sr=8-6
arranged both on main pcb and twister to follow that
so for both pcbs, just follow silkscreen
arranged both on main pcb and twister to follow that
so for both pcbs, just follow silkscreen
your OCD is dangerously bordering mine
chill up a little, you'll live longer
Fleeced by the hypnosis of advertising...just go for it
none of resistors is critical regarding dissipation
use smaller as you wish, just don't push bigger fancy drek .......... as some are doing ......... being hypnotized with exclusivity
Russellc
your OCD is dangerously bordering mine
chill up a little, you'll live longer
ROTFLOL
You don't know OCD.
In my business.... OCD is the minimum qualification... otherwise things blow up, crash, burn, turn their controls to the heart of the Sun, or worse... customers call and complain.
Do you remember 2000 when Lucent brought down the Chicago metropolitan network when they updated the firmware for the ATT 5ESS switches? It brought down the Chicago Board of Trade for three days! That's an example of what happens when you let non OCD marketing types call the shots.
Or when Mars Pathfinder landed on Mars and they lost the main telemetry connection? It turns out they had not tested it correctly and forgot to remove the serial console connection for final preflight testing. "forgot"?... WTF?... Ooops... Just like that previous fiasco with metric/standard units for re-entry. firing controls.
Being OCD is a very, VERY good thing sometimes.
( Hmm... did I get the commas right? )....
Anyhow, thinking while the BOM makes it way.... I got the balanced unit. Now, should I want to run it SE ( no comments ) I suppose I could use some adapters, huh? I got some of them XLR to RCA plugs... I believe they are bi-directional.
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your OCD is weak
1467 posts
I wrote at least dozen times that on Bal preamp each SE input must be permanently wired as such
no adapters
Edicion Limitada.... maybe I'll need to dig some of the 30 year old Partagas Perfectos when I play Antonio Machin over the Iron Pre?
xpost from other thread, regarding IPre thingie
Blame Pa
Blame Pa
I just finished selecting more than 100 sets of Jfets to help this along.
I believe you will be able to get one before too long....
Update to post 1443:
Got a quote from Mouser for the 'proper' part (socket) for the NKK ribbon. NKK recomends this part no.
https://www.mouser.com/ProductDetai...gJk4Aa4Klxg==&countryCode=US¤cyCode=USD
It is for SMD and NOT Pins. Did I ask for a socket with pins to solder to board? Yes, obviously. Can the pads be bent and forced into the board? Not asking, being
.Will see Fri if I've been sent Reima's suggestions to cobble the NKK ribbon up. Ribbon is not cheap neither are these sockets.
Hope this helps (to not go this route) and stay with IAIMH's recomendations.
if getting proper flat cable and pcb headers is that hard, you can always get bunch of wires and solder them directly
edit: all you need is really just 7 wires ......... twice that for Bal
edit: all you need is really just 7 wires ......... twice that for Bal
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Yes, I agree. That is my last resort. I have ordered and received the NKK Ribbons so will adapt them. I am certain the rails ordered will work. Mouser is very good at returns and will just refund the $ if it comes to doing it directly. The Wurth sockets I won't know until I mate them and or commit surgery on them.get bunch of wires and solder them directly
Danke H.
Check the pitch also... 😉Update to post 1443:
Got a quote from Mouser for the 'proper' part (socket) for the NKK ribbon. NKK recomends this part no.
https://www.mouser.com/ProductDetail/Harwin/M50-3100745?qs=Jph8NoUxIfWgJk4Aa4Klxg==&countryCode=US¤cyCode=USD
It is for SMD and NOT Pins. Did I ask for a socket with pins to solder to board? Yes, obviously. Can the pads be bent and forced into the board? Not asking, being
Will see Fri if I've been sent Reima's suggestions to cobble the NKK ribbon up. Ribbon is not cheap neither are these sockets.
Hope this helps (to not go this route) and stay with IAIMH's recomendations.
Once you get parts in-hand, you'll have a better idea.