Search found 4754 matches

by mediatechnology
Fri Jul 30, 2021 6:38 pm
Forum: Pro Audio Design
Topic: Super Low Distortion Ultra Pure Audio Oscillators Revisited
Replies: 154
Views: 180027

Re: Super Low Distortion Ultra Pure Audio Oscillators Revisited

Just got a new run of ULDO-Nacho boards in. https://proaudiodesignforum.com/images/jpg/ULDO_Nacho_20_PCB.jpg ULDO-Nacho Ultra Low Distortion Oscillator and Notch Filter PC Board The new boards have three improvements. A second "Generator Monitor" Phoenix connector was added to keep from having to m...
by mediatechnology
Fri Jul 30, 2021 5:12 pm
Forum: The Peabody Lounge
Topic: The Corona Virus Hoax of 2020
Replies: 420
Views: 170611

FDA Accidentally Shows List of Covid Vaccine Side Effects, Including Myocarditis, Autoimmune Disease & Death

Oops! FDA Accidentally Shows List of Covid Vaccine Side Effects, Including Myocarditis, Autoimmune Disease & Death An FDA slideshow presentation regarding Covid vaccines last year accidentally displayed a long list of possible adverse reactions to the vaccine, including myocarditis, seizures and ev...
by mediatechnology
Fri Jul 30, 2021 10:47 am
Forum: Pro Audio Design
Topic: The Studer "90° Filter" Stereo to Mono Summer/Recorrelator
Replies: 11
Views: 3868

Re: The Studer "90° Filter" Stereo to Mono Summer/Recorrelator

This is my interpretation of the Studer 90 Degree Dome Filter. Thanks Doug for the post and pointing this out to me back in 2018. https://proaudiodesignforum.com/images/jpg/Recorrelator_Stereo_To_Mono_Quadrature_Summing_Filter_073021.jpg "Recorrelator" Stereo to Mono Quadrature Summing Filter Based...
by mediatechnology
Wed Jul 28, 2021 5:04 pm
Forum: Pro Audio Design
Topic: Super Low Distortion Ultra Pure Audio Oscillators Revisited
Replies: 154
Views: 180027

Re: Super Low Distortion Ultra Pure Audio Oscillators Revisited

The Attenuator boards for ULDO-Nacho arrived: https://proaudiodesignforum.com/images/jpg/Atto_1_PCB_Assembled.jpg I used DC as a source and the DC dB capability of the Fluke 8050A meter to check attenuation accuracy prior to actually hooking it up to ULDO. The attenuator had ground floating making ...
by mediatechnology
Wed Jul 28, 2021 11:26 am
Forum: The Peabody Lounge
Topic: The Corona Virus Hoax of 2020
Replies: 420
Views: 170611

USA Today Scrubs Passage Suggesting Vaccinated Individuals May Spread COVID With 'Higher Levels' Of Virus

USA Today Scrubs Passage Suggesting Vaccinated Individuals May Spread COVID With 'Higher Levels' Of Virus “NBC News, citing unnamed officials aware of the decision, reported it comes after new data suggests vaccinated individuals could have higher levels of virus and infect others amid the surge of...
by mediatechnology
Tue Jul 27, 2021 7:24 am
Forum: Pro Audio Design
Topic: Texar Prism clone prototype
Replies: 14
Views: 29012

Re: Texar Prism clone prototype

I'm seeing long lead times on very basic commodity parts like LM-series regulators, common transistors, Wima caps and film resistors. I've been having some luck finding out-of-stock Mouser items at Digi-Key recently. I'm reluctant to suggest it but have you looked on ebay? I've found some US-based a...
by mediatechnology
Mon Jul 26, 2021 12:40 pm
Forum: Build
Topic: Phono Transfer System Construction Information
Replies: 227
Views: 254248

Re: Phono Transfer System Construction Information

Studer made a layback machine?
Wow, that brings back memories of the MCI JH-110 1" layback I used to have to maintain at DSL.

The A80 VU Mk II … IV looks to have a low impedance head transformer-coupled to the preamp.
The MC preamp might be a better fit.
by mediatechnology
Sun Jul 25, 2021 5:56 pm
Forum: Build
Topic: Phono Transfer System Construction Information
Replies: 227
Views: 254248

Re: Phono Transfer System Construction Information

Sure, I will have to rescan them as I altered the original scans.
A road map should would help. Thanks!
by mediatechnology
Sun Jul 25, 2021 5:54 pm
Forum: The Peabody Lounge
Topic: The Corona Virus Hoax of 2020
Replies: 420
Views: 170611

Why Is The CDC Quietly Abandoning The PCR Test For COVID?

Why Is The CDC Quietly Abandoning The PCR Test For COVID? We have detailed (most recently here and here) the controversy surrounding America's COVID "casedemic" and the misleading results of the PCR test and its amplification procedure in great detail over the past few months. As a reminder, "cycle...
by mediatechnology
Sun Jul 25, 2021 12:37 pm
Forum: Pro Audio Design
Topic: Super Low Distortion Ultra Pure Audio Oscillators Revisited
Replies: 154
Views: 180027

Re: Super Low Distortion Ultra Pure Audio Oscillators Revisited

Nice work Mike! I would have used a floating attenuator if I didn't have the need for unbalanced outputs. The ground on the one I have should be liftablle however since for balanced loads the net current in the ground is zero. That assumes perfect resistor matching so at the lower steps the error mi...