Search found 4679 matches

by mediatechnology
Wed Dec 30, 2020 10:30 am
Forum: Pro Audio Design
Topic: Bipolar Power Supply Load Current Imbalance And Transformer Core Saturation
Replies: 22
Views: 3704

Re: Bipolar Power Supply Load Current Imbalance And Transformer Core Saturation

"The Effect of DC Current on Power Transformers," Zeimer, 2004. Big power transformers... There are a host of adverse effects that can accompany the presence of a direct current in a transformer’s windings. The predominant effect that is witnessed is half cycle saturation. This leads to increased h...
by mediatechnology
Wed Dec 30, 2020 8:03 am
Forum: The Peabody Lounge
Topic: The Memory Hole Theater: Videos Banned by YouTube
Replies: 17
Views: 4252

Doctors Around The World Issue Dire WARNING: DO NOT GET THE COVID VACCINE!

Doctors Around The World Issue Dire WARNING: DO NOT GET THE COVID VACCINE! Doctors join together in this powerful video exposing the dangers of taking the mandatory COVID vaccine. Video : https://banned.video/watch?id=5febc6a8c3c5ce1ce2f5f8d7 Cached : https://waynekirkwood.com/content/Doctors_Aroun...
by mediatechnology
Wed Dec 30, 2020 7:59 am
Forum: The Peabody Lounge
Topic: The Corona Virus Hoax of 2020
Replies: 318
Views: 34051

Doctors Around The World Issue Dire WARNING: DO NOT GET THE COVID VACCINE!

Doctors Around The World Issue Dire WARNING: DO NOT GET THE COVID VACCINE! Doctors join together in this powerful video exposing the dangers of taking the mandatory COVID vaccine. Video : https://banned.video/watch?id=5febc6a8c3c5ce1ce2f5f8d7 Cached : https://waynekirkwood.com/content/Doctors_Aroun...
by mediatechnology
Tue Dec 29, 2020 2:26 pm
Forum: Pro Audio Design
Topic: Cohen/Transamp output stage
Replies: 30
Views: 3536

Re: Cohen/Transamp output stage

I ask because the 1510/1512 can't directly drive low impedance loads at elevated level and the datasheet doesn't even show an output build-out resistor.
by mediatechnology
Tue Dec 29, 2020 2:08 pm
Forum: Pro Audio Design
Topic: Cohen/Transamp output stage
Replies: 30
Views: 3536

Re: Cohen/Transamp output stage

What was the load on the 1510 ICs during the tests?
Was it buffered?
by mediatechnology
Tue Dec 29, 2020 2:01 pm
Forum: Pro Audio Design
Topic: Cohen/Transamp output stage
Replies: 30
Views: 3536

Re: Cohen/Transamp output stage

I think using the 1606 is a great idea. By using the differential input of the 1606 you can realize a common mode rejection ratio that's typically 60 dB. TransAmp Documents: https://www.proaudiodesignforum.com/forum/php/viewtopic.php?f=12&t=114&p=894 Pontis Output: https://www.proaudiodesignforum.co...
by mediatechnology
Thu Dec 24, 2020 1:20 pm
Forum: Test, Measurement and Repair
Topic: Focusrite Scarlett 2i2 Gen 3 Performance Measurements
Replies: 11
Views: 4223

Re: Focusrite Scarlett 2i2 Gen 3 Performance Measurements

I received a second Focusrite Scarlett 2i2 and it has good common mode rejection:

Image

Left channel CMRR 68 dB; Right channel 58 dB.

I'll use the first unit in an unbalanced environment and use the "good" 2i2 on the work bench.
by mediatechnology
Thu Dec 24, 2020 9:00 am
Forum: The Peabody Lounge
Topic: The Corona Virus Hoax of 2020
Replies: 318
Views: 34051

WHO Deletes Naturally Acquired Immunity from Its Website

WHO Deletes Naturally Acquired Immunity from Its Website Herd immunity is a fascinating observation that you can trace to biological reality or statistical probability theory, whichever you prefer. (It is certainly not a “strategy” so ignore any media source that describes it that way.) Herd immuni...
by mediatechnology
Wed Dec 23, 2020 3:09 pm
Forum: Test, Measurement and Repair
Topic: Focusrite Scarlett 2i2 Gen 3 Performance Measurements
Replies: 11
Views: 4223

Focusrite Scarlett 2i2 Gen 3 Input Common Mode Rejection

I've been using the Focusrite Scarlet 2i2 as my test and measurement front-end and found a quirk that users should be aware of. The left channel of my 2i2 has very poor common mode rejection: https://proaudiodesignforum.com/images/jpg/Focusrite_2i2_CMRR.jpg The left channel CMRR measures 13.5 dB; t...