Search found 5079 matches

by mediatechnology
Sat Aug 13, 2022 12:01 pm
Forum: Test, Measurement and Repair
Topic: PC Power Supply Failures After Running on a UPS
Replies: 6
Views: 841

Re: PC Power Supply Failures After Running on a UPS

FWIW I ended up opening the cases on the four power supplies I removed from service as well as the 5th used one I was keeping as a spare.
4 of 5 had domed caps.

The lesson to me is that it's a good idea to change out your older power supplies even if they're working...
Glad I did.
by mediatechnology
Sat Aug 13, 2022 8:39 am
Forum: Pro Audio Design
Topic: Super Low Distortion Ultra Pure Audio Oscillators Revisited
Replies: 162
Views: 216562

Re: Super Low Distortion Ultra Pure Audio Oscillators Revisited

Here's' the FFT results of the 10 kHZ Uldo-Nacho and the Focusrite 2i2: https://proaudiodesignforum.com/images/jpg/ULDO-Nacho_10 kHz_0dBu_Red_Notch_Blue_Focusrite2i2.jpg The sample rate is 96 kHz, 24 bit. FFT is a 1M pt 10 sample average. The output is 0 dBu loaded only by the notch filter and A/D....
by mediatechnology
Fri Aug 12, 2022 12:29 pm
Forum: Pro Audio Design
Topic: Super Low Distortion Ultra Pure Audio Oscillators Revisited
Replies: 162
Views: 216562

Re: Super Low Distortion Ultra Pure Audio Oscillators Revisited

I just built a 10 kHz test version of ULDO-Nacho. I used Mouser's 5% 1 nF polystyrene caps because I wanted to try them. I didn't scale the tuning resistors: They remained 15K9 and 15K9/2. The polystyrene caps I had are the radial version and the long leads allowed me to tack solder them. The caps ...
by mediatechnology
Fri Aug 05, 2022 9:14 pm
Forum: The Peabody Lounge
Topic: The Corona Virus Hoax of 2020 = 2022 "Vaccine" Injury And Depopulation
Replies: 563
Views: 245878

CDC Claims Link Between Heart Inflammation And COVID-19 Vaccines Wasn't Known For Most Of 2021

CDC Claims Link Between Heart Inflammation And COVID-19 Vaccines Wasn't Known For Most Of 2021 https://www.zerohedge.com/covid-19/cdc-claims-link-between-heart-inflammation-and-covid-19-vaccines-wasnt-known-most-2021 The U.S. Centers for Disease Control and Prevention (CDC) has claimed that there w...
by mediatechnology
Thu Aug 04, 2022 2:17 pm
Forum: The Peabody Lounge
Topic: The Corona Virus Hoax of 2020 = 2022 "Vaccine" Injury And Depopulation
Replies: 563
Views: 245878

US Declares Monkeypox Public Health Emergency

US Declares Monkeypox Public Health Emergency Here we go again... https://www.zerohedge.com/medical/biden-hhs-declare-monkeypox-public-health-emergency-soon-today The Biden administration has officially declared monkeypox a public health emergency. "I want to make an announcement today that I ...
by mediatechnology
Tue Jul 26, 2022 11:26 am
Forum: Build
Topic: MTC-IGFO Mastering Transfer Console Input Gain Filter Output Construction Information
Replies: 17
Views: 54106

Re: MTC-IGFO Mastering Transfer Console Input Gain Filter Output Construction Information

"Got our mastering transfer console finished" Thomas W. Bethel We have been working on this for the past two and a half years and it is finally finished. My tech wiz, Rhys Davies, built the whole unit himself and wired it. We had lot of changes along the way but it works GREAT and we got ...
by mediatechnology
Thu Jul 21, 2022 6:58 pm
Forum: The Peabody Lounge
Topic: The Corona Virus Hoax of 2020 = 2022 "Vaccine" Injury And Depopulation
Replies: 563
Views: 245878

Dr. Birx Admits She And Fauci Made Up 'The Science' On Lockdowns, Social Distancing

Dr. Birx Admits She And Fauci Made Up 'The Science' On Lockdowns, Social Distancing President Trump's former Covid-19 adviser Dr. Deborah Birx has made several stunning admissions of late - first telling the Daily Mail that Covid-19 "came out of the box ready to infect" when it hit Wuhan,...
by mediatechnology
Sat Jul 16, 2022 12:27 pm
Forum: The Peabody Lounge
Topic: The Corona Virus Hoax of 2020 = 2022 "Vaccine" Injury And Depopulation
Replies: 563
Views: 245878

New Cases of Mental Disorders Emerged after Vaccination; 3 Natural Ways to Improve Symptoms

New Cases of Mental Disorders Emerged after Vaccination; 3 Natural Ways to Improve Symptoms As of early July 2022, 66 percent of the world’s population has been vaccinated with the COVID-19 vaccines. As more people are getting vaccinated, reports on adverse events and even side effects continue to ...
by mediatechnology
Sat Jul 16, 2022 5:44 am
Forum: Pro Audio Design
Topic: Discrete Op Amp clipping behavior
Replies: 6
Views: 354

Re: Discrete Op Amp clipping behavior

I do wish the manufacturers would stop calling this effect "phase" reversal when in fact it is polarity reversal.

TI's new TL072 "H" version has apparently addressed this problem.
by mediatechnology
Sat Jul 09, 2022 8:04 am
Forum: The Peabody Lounge
Topic: The Corona Virus Hoax of 2020 = 2022 "Vaccine" Injury And Depopulation
Replies: 563
Views: 245878

Haiti Did Not Vaccinate Its Citizens Yet Country Has One of Lowest COVID Death Rates in the

Haiti Did Not Vaccinate Its Citizens, The Current Vax Rate is 1.4% — Yet Country Has One of Lowest COVID Death Rates in the World Data from the World Health Organization (WHO) showed only 837 people have died in Haiti since the pandemic began, with a vaccination rate of 1.4% of the 11.6 million pop...