Search found 4701 matches

by mediatechnology
Tue May 18, 2021 7:39 am
Forum: The Peabody Lounge
Topic: Gentle persuasion over time
Replies: 184
Views: 115219

Re: Gentle persuasion over time

I'm glad you're OK JR. I had a large arm on an Oak in my backyard drop this weekend during one of our many rainstorms. My big problem is trying to figure out what to do with all the brush since I can't set it out curbside for collection until June without the risk of getting cited. Dallas has a work...
by mediatechnology
Mon May 17, 2021 9:13 am
Forum: Pro Audio Design
Topic: Super Low Distortion Ultra Pure Audio Oscillators Revisited
Replies: 132
Views: 176002

Re: Super Low Distortion Ultra Pure Audio Oscillators Revisited

MIke - I sent you a PM. Thanks for your interest.
I hope to have a BOM later today and will then start on some assembly instructions.
I've spent the last few days testing the board pretty extensively - the 1M pt 10 sample FFTs take quite awhile to run.
by mediatechnology
Sun May 16, 2021 3:24 pm
Forum: The Peabody Lounge
Topic: The Corona Virus Hoax of 2020
Replies: 405
Views: 166624

Rock Legend Eric Clapton Blasts Vaccine Safety ‘Propaganda’, Says He Had ‘Disastrous Reaction’

PS: I didn't wear my mask to the post office today.... I am fully vaccinated and not dead yet. :lol: You mentioned earlier that you wore a mask out of respect for others something to the effect of "it may or may not be effective but my wearing one makes other people feel better." I realize that I'm...
by mediatechnology
Sat May 15, 2021 5:41 am
Forum: The Peabody Lounge
Topic: The Corona Virus Hoax of 2020
Replies: 405
Views: 166624

Vaccine Virtue Signaling And The Cult Of Woke

Vaccine Virtue Signaling And The Cult Of Woke Authored by Brandon Smith via Alt-Market.us All tyrannical systems need a large contingent of cheerleaders in order to survive and thrive; a group of exploitable and devout acolytes that will carry the torch and evangelize the masses with the ideology o...
by mediatechnology
Thu May 13, 2021 3:44 pm
Forum: Pro Audio Design
Topic: Super Low Distortion Ultra Pure Audio Oscillators Revisited
Replies: 132
Views: 176002

Re: Super Low Distortion Ultra Pure Audio Oscillators Revisited

Thanks George and Mike! To answer your question George I have a couple of extra boards. I've been running a bunch of tests and updating the schematics to match the PC board. https://proaudiodesignforum.com/images/png/ULDO-Nacho_19_Sheet_1_051321.png ULDO Ultra-Low Distortion Oscillator Schematic (Ri...
by mediatechnology
Tue May 11, 2021 5:14 pm
Forum: Pro Audio Design
Topic: Super Low Distortion Ultra Pure Audio Oscillators Revisited
Replies: 132
Views: 176002

Re: Super Low Distortion Ultra Pure Audio Oscillators Revisited

ULDO-Nacho checks out without any board errors. Will post some distortion FFTs. +20 dBu into 604Ω balanced is measuring below -141 dBc. Found that the 49R9Ω output resistors add a slight amount of third harmonic likely due to signal-induced self-heating. With 0Ω build-out third harmonic is even les...
by mediatechnology
Mon May 10, 2021 4:29 pm
Forum: Pro Audio Design
Topic: Super Low Distortion Ultra Pure Audio Oscillators Revisited
Replies: 132
Views: 176002

Re: Super Low Distortion Ultra Pure Audio Oscillators Revisited

ExpressPCB got boards ordered on a 5 day turn-around produced in 2 days.

Looks like its time to build one and see if it runs...

Image
ULDO Nacho PC Board
by mediatechnology
Mon May 10, 2021 11:22 am
Forum: The Peabody Lounge
Topic: Entropy
Replies: 1296
Views: 603771

Re: Entropy

This Sunday's repair drama began about 10:30 Saturday night when my wife reported that the hall bathroom was flooding. The lavatory's faucet hose between the cold valve and the nozzle had popped open. Unfortunately it's a proprietary Price Pfister part not available at big box retailers. I decided t...
by mediatechnology
Mon May 10, 2021 10:53 am
Forum: Build
Topic: TDK-Lambda Single, Bipolar and Triple Output Switching Power Supplies for Audio Projects
Replies: 5
Views: 6433

Re: TDK-Lambda Single, Bipolar and Triple Output Switching Power Supplies for Audio Projects

I'd look for a hiccup mode on the Meanwell when they're lightly loaded.
I don't recall seeing it with their open frame supplies but with the enclosed desktop "Green Power" series the hiccup was pretty bad.