Ricardus

Re: PMillett Tube Preamp Build
« Reply #20 on: May 15, 2019, 10:18:14 AM »
OK, so here's the fun I got to have today.

As I mentioned above, I ordered the Sowter 3603's a couple weeks ago. I live in the states. The order arrived today. They shipped me the style with the wires coming out the top, with the threaded grommet (option 'E'), instead of out the side (option 'F'), like I ordered. OK, it's not the end of the world. I could make that work.

But then I was looking at the wires and noticed they didn't match the published color codes for the traffo I ordered, the 3603. So I was about to email them asking them what the new color codes were, and I noticed its the entirely wrong transformer. I ordered 3603f and they sent 3575e. So I bet they mixed up orders and sent me someone else's.

Good times...   :)
Audio mastering for hire..


analag

Re: PMillett Tube Preamp Build
« Reply #21 on: May 16, 2019, 01:04:16 AM »
At least they sent you the transformer. I ordered a tranny from Cinemag in January and those clowns have yet to ship it out
Audio engineering suffers from misinformation, disinformation, and downright lying more than most fields of endeavour.

Ricardus

Re: PMillett Tube Preamp Build
« Reply #22 on: May 16, 2019, 09:40:04 AM »
At least they sent you the transformer. I ordered a tranny from Cinemag in January and those clowns have yet to ship it out

Holy  crap. I'd be bombing them with phone calls and emails!

Sowter already shipped the replacements, and I sent back the ones they sent me, yesterday.

Good luck with your cinemags!
Audio mastering for hire..

Fuzz Face

Re: PMillett Tube Preamp Build
« Reply #23 on: May 20, 2019, 02:56:24 PM »
Holy  crap. I'd be bombing them with phone calls and emails!

Sowter already shipped the replacements, and I sent back the ones they sent me, yesterday.

Good luck with your cinemags!

Yeah I would definitely call Cinemag (not email)

I ordered a pair of transformers from Cinemag a couple months ago and turnaround was a little over a month. There must be some issue going on over there with your order

Ricardus

Re: PMillett Tube Preamp Build
« Reply #24 on: May 22, 2019, 04:01:23 PM »
Sowter managed to finally get me the correct traffos.
Audio mastering for hire..

Ricardus

Re: PMillett Tube Preamp Build
« Reply #25 on: May 22, 2019, 05:36:24 PM »
My friend John printed me up some mounting cups/brackets for the new (correct) transformers.
Audio mastering for hire..

Ricardus

Re: PMillett Tube Preamp Build
« Reply #26 on: May 27, 2019, 06:25:42 PM »
Finally got around to doing more work. Drilled and populated the front panel. Wish I had a drill press! Even though I punched and pre-drilled with a smaller bit, two of the holes drifted a bit. I guess that's what DIY and rock and roll are all about.

I have a panel designed from Front Panel Express, but it prices out to about 150, so maybe I'll order that this fall when I have more cash on hand. The only question is, what color. I'm thinking possibly gold this time. I already have stuff from them that's blue, red, and black.
« Last Edit: May 27, 2019, 06:31:10 PM by Ricardus »
Audio mastering for hire..

Ricardus

Re: PMillett Tube Preamp Build
« Reply #27 on: May 27, 2019, 06:28:52 PM »
I also soldered the jumpers that will run between the PCB and the switches and pot on the front panel. This actually took a while.
Audio mastering for hire..

Ricardus

Re: PMillett Tube Preamp Build
« Reply #28 on: May 28, 2019, 12:43:25 PM »
The brackets my friend friend 3D printed me for the Sowters  actually ended up working the way I envisioned in my head. That's a first!
Audio mastering for hire..

Ricardus

Re: PMillett Tube Preamp Build
« Reply #29 on: June 01, 2019, 12:42:32 AM »
Drilled and mounted the PCB standoffs. Not shown, but I ended up using some #6 washers as shims to raise them a bit and make more room for the long screws that these come with.
Audio mastering for hire..


Ricardus

Re: PMillett Tube Preamp Build
« Reply #30 on: June 01, 2019, 12:44:56 AM »
Got the input and output XLR jumper lines soldered, and installed the tubes. sh*t just got real. Final assembly this weekend.
Audio mastering for hire..

Ricardus

Re: PMillett Tube Preamp Build
« Reply #31 on: June 03, 2019, 05:38:40 PM »
Because everything looks cooler with machined aluminum Neve knobs!
Audio mastering for hire..

Ricardus

Re: PMillett Tube Preamp Build
« Reply #32 on: June 07, 2019, 11:56:53 AM »
The build is basically done. Had a small power supply issue so I haven't really been able to test it yet. Will post pics when that happens. In the meantime, I put the schematic on the inside of the upper rack box lid, OLD SCHOOL, so long after I'm dead, if someone is still using this, the tech will have a schematic. Lots of old gear used to do this. They don't anymore.
Audio mastering for hire..

Ricardus

Re: PMillett Tube Preamp Build
« Reply #33 on: June 08, 2019, 06:22:09 PM »
I did some labels with my P-Touch. This isn't awesome, but it isn't awful either. Somewhere in the middle. When I get some spare cash I'll order the FPE panel I designed.

For some reason the front panel is finished with that wrinkle paint look, while the rest of the rack box is finished with more of a matte look. The labels on the XLR ins and outs in the back look better because of that.
« Last Edit: June 08, 2019, 07:55:20 PM by Ricardus »
Audio mastering for hire..

Ricardus

Re: PMillett Tube Preamp Build New
« Reply #34 on: July 14, 2019, 11:50:31 AM »
The two channel version of this pre is officially finished, unless I buy the FPE custom panel I designed for it.

So after talking to Pete Millett in email, he was confident with an off the shelf switching PSU that has a proper ground, I could get away with putting that in the case because of all the filtering he designed into the circuit.

Outputs are balanced with Sowters.

Thing sounds very big. The one thing I noticed is the high gain mode adds some noticeable noise floor. But with a good condenser you only need to use the lower gain range anyway. I could easily peg the meters of my recorder just talking into in using my U87 clones. In that mode the thing is dead quiet and sounds amazing.

Super happy with this. Learned a lot on the way and I plan to build a 2nd one in a few months.

I think I have somewhere around $1200 into this with parts.
« Last Edit: July 17, 2019, 10:05:53 PM by Ricardus »
Audio mastering for hire..

Ricardus

Re: PMillett Tube Preamp Build
« Reply #35 on: July 14, 2019, 11:54:36 AM »
I was doing some listening through an old Masterlink I have kicking around. Can't wait to record with it.

A friend also made me some custom graduated markers for the pots. Laser cutters are super handy things. And in the previous pic you can see the custom transformer mounts a friend made for me with his 3D printer.
Audio mastering for hire..

TillM

Re: PMillett Tube Preamp Build
« Reply #36 on: July 16, 2019, 09:06:39 AM »
Nice build ! Congrats

Ricardus

Re: PMillett Tube Preamp Build
« Reply #37 on: July 16, 2019, 04:57:02 PM »
Nice build ! Congrats

Thank you sir!
Audio mastering for hire..


 

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