Search found 4703 matches

by mediatechnology
Sat Jun 19, 2021 3:04 pm
Forum: Pro Audio Design
Topic: Transistor Vbe Matching Using A Commutating Chopper-Based Circuit
Replies: 32
Views: 68629

Re: Transistor Vbe Matching Using A Commutating Chopper-Based Circuit

I had used up my stock of matched ZTX-851 transistors for the flat MC preamp and the time had come to match some more up. The ZTX851 for this run was from a different lot. Out of 30 devices I had no problem getting 12 pairs matched to <1 mV which is adequate for the MC preamp. This lot had higher ga...
by mediatechnology
Sat Jun 19, 2021 12:48 pm
Forum: The Peabody Lounge
Topic: The Corona Virus Hoax of 2020
Replies: 406
Views: 167158

Eric Clapton Details How The COVID 'Vaccine" Paralyzed Him

Eric Clapton Details How The COVID 'Vaccine" Paralyzed Him https://banned.video/watch?id=60c921e9384b080b2bf5dc83 The full Eric Clapton interview form Oracle Films can be found here: https://www.youtube.com/watch?v=4OHmMKrVbNk Eric Clapton details how he was duped into getting the Astra Zeneca vacc...
by mediatechnology
Mon Jun 14, 2021 5:59 pm
Forum: The Peabody Lounge
Topic: The Corona Virus Hoax of 2020
Replies: 406
Views: 167158

"Vaccine" Deaths Off The Charts

https://waynekirkwood.com/images/jpg/VAERS_Deaths_0621.jpg The VAERS reporting system only makes public the initial report. If a physician reports to the VAERS system that a patient had a bad headache as an adverse reaction and the patient then dies a week later from a brain aneurysm only the "bad ...
by mediatechnology
Mon Jun 14, 2021 9:28 am
Forum: Pro Audio Design
Topic: Super Low Distortion Ultra Pure Audio Oscillators Revisited
Replies: 132
Views: 176414

Re: Super Low Distortion Ultra Pure Audio Oscillators Revisited

Here's a link to the THD calculator I use to interpret ULDO/Nacho's FFTs. https://proaudiodesignforum.com/calculators/ULDO_Nacho_THD_Calculator.xls I plugged in some typical measurement data into the xls. The gray cells are for measurements and test conditions. https://proaudiodesignforum.com/image...
by mediatechnology
Mon Jun 07, 2021 5:09 pm
Forum: Pro Audio Design
Topic: That1580 mini mixer
Replies: 92
Views: 206282

Re: That1580 mini mixer

For some reason I was thinking each pair of channels fed an A/D. Forgot you were analog summing. For the single modulator driver the Birt might still be advantageous. The Cirrus circuit requires anti-polarity inputs. The Birt can be fed single-ended or differential but still provides differential ou...
by mediatechnology
Mon Jun 07, 2021 7:43 am
Forum: Pro Audio Design
Topic: That1580 mini mixer
Replies: 92
Views: 206282

Re: That1580 mini mixer

It also occurred to me that you might consider combining the 124X common mode stage with the modulator driver. Use a "Birt" topology similar to those shown in THAT's DN-140 (figure 11 basic Birt) and the THAT 5263 data sheet figure 12. http://www.thatcorp.com/datashts/THAT_5263_Datasheet.pdf I did t...
by mediatechnology
Mon Jun 07, 2021 6:16 am
Forum: Pro Audio Design
Topic: That1580 mini mixer
Replies: 92
Views: 206282

Re: That1580 mini mixer

Nice work!

Could you perform polarity reversal in software and save a bunch of switches/relays?
by mediatechnology
Thu Jun 03, 2021 9:18 am
Forum: The Peabody Lounge
Topic: The Corona Virus Hoax of 2020
Replies: 406
Views: 167158

Engineered protein crystals make cells magnetic

Can you attract and hold a magnet at the injection site? WTF are you smoking? magnets.... um no. Have you tried it? Seems to be related to the Pfizer product. Engineered protein crystals make cells magnetic: https://www.sciencedaily.com/releases/2019/09/190925083802.htm September 25, 2019 Source: A...
by mediatechnology
Wed Jun 02, 2021 2:44 pm
Forum: The Peabody Lounge
Topic: The Corona Virus Hoax of 2020
Replies: 406
Views: 167158

Re: The Corona Virus Hoax of 2020

Relatively old news about "the" Dr Fauci... :lol: The icing on the Fauci hypocrisy cake is his new book claiming to be about "truth (cough) and service". :roll: What kind of government official who on TV almost daily, like a moth attracted to a light bulb, has enough left over for a book..? More ev...
by mediatechnology
Wed Jun 02, 2021 5:52 am
Forum: The Peabody Lounge
Topic: The Corona Virus Hoax of 2020
Replies: 406
Views: 167158

The Fauci Emails

It is possible to be both a political sycophant and respected expert in infectious diseases. I saw a longer interview last night with Dr Fauci and he appears to know what he is talking about Dr. Fauci is a lying sack-of-shit criminal. Top WHO Official Thanks Dr. Fauci in Email in April 2020 for Ins...