Re: [BUILD] NU FEDERAL AM-864 PCB OFFICIAL BUILD & HELP THREAD
« Reply #100 on: October 11, 2017, 10:52:16 AM »
 :o woww ! crazy


Eliani

Re: [BUILD] NU FEDERAL AM-864 PCB OFFICIAL BUILD & HELP THREAD
« Reply #101 on: October 11, 2017, 02:35:55 PM »
Yep, you've got to love that!!

so new tubes in mine! I was able to find a couple real close to each other, now the voltages are cool!
Next up is metering, I've got a 1mA meter. But the dial wil not go upto the max value, and with extreme settings the dial is halfway the scale... not usable I would say...

What do you guys sugest?
"Iron Projects" at Eli-Audio.com

djfatum

Re: [BUILD] NU FEDERAL AM-864 PCB OFFICIAL BUILD & HELP THREAD
« Reply #102 on: October 11, 2017, 05:40:11 PM »
The VU must have 200 micro amperes (1 milli amper too much)

Eliani

Re: [BUILD] NU FEDERAL AM-864 PCB OFFICIAL BUILD & HELP THREAD
« Reply #103 on: October 12, 2017, 01:34:58 AM »
The VU must have 200 micro amperes (1 milli amper too much)

Cool, that's what I thought
"Iron Projects" at Eli-Audio.com

Eliani

Re: [BUILD] NU FEDERAL AM-864 PCB OFFICIAL BUILD & HELP THREAD
« Reply #104 on: October 12, 2017, 11:27:02 AM »
This might be better in another thread, but what CNC are you using? Are you just engraving anodized aluminum? Love the look of your panel. :)

I’ve got a BZT PFE1000PX, and Yes anodised aluminium. And thank you!
"Iron Projects" at Eli-Audio.com

Eliani

Re: [BUILD] NU FEDERAL AM-864 PCB OFFICIAL BUILD & HELP THREAD
« Reply #105 on: October 12, 2017, 12:31:46 PM »
The VU must have 200 micro amperes (1 milli amper too much)

Could you tell me what meters you bought and where you got them? I'm having trouble finding them.
"Iron Projects" at Eli-Audio.com

Re: [BUILD] NU FEDERAL AM-864 PCB OFFICIAL BUILD & HELP THREAD
« Reply #106 on: October 14, 2017, 05:13:21 AM »
Could you tell me what meters you bought and where you got them? I'm having trouble finding them.

Don audio  sells them in 200 micro amperes now...

rob_gould

Re: [BUILD] NU FEDERAL AM-864 PCB OFFICIAL BUILD & HELP THREAD
« Reply #107 on: October 14, 2017, 05:34:46 AM »
Not to brag but i'm kind of proud of this build!

At least of how it looks because wiring could have been a bit cleaner, but I'm sure I'll get it next time. I'm waiting for new 6BA6/EF93 tubes to arrive, I've bought like 10 and hope to good pair out of them. I'm not totally aware of how one would match tubes, or if I even need to, but I'm guessing it wouldn't hurt as I can't seem to get C and B to the same voltage! This might explain that the input get's distorted when cranking the input?

I've yet to do the threshold/ratio range reduction mods









Really great job - you should be proud!

I've been a bit out the DIY loop for a while but seeing your project had inspired me to get back to a couple of half-finished projects of my own...

Eliani

Re: [BUILD] NU FEDERAL AM-864 PCB OFFICIAL BUILD & HELP THREAD
« Reply #108 on: October 14, 2017, 01:29:57 PM »
Yeah, I tend to lose interest in certain projects after a while too, but most of the time it's lack of time or funding!

By the way, about the 200uA DC meters, Aaron from Don-Audio let me know he's doing a run for them, now available in his store, although they will not be available for another 3 to 4 weeks. So I bought another Weston 2521 meter, but instead of the 1mA I found a 200uA version. And I bought a bunch of strange 200uA meters just for future projects.

I ordered 4 more PCB's from Zayance for a single control stereo version and one with a mono switch and dual controls... looking forward to that, because I just spent over €1000 for all the parts!
"Iron Projects" at Eli-Audio.com