Search found 4680 matches

by mediatechnology
Tue Jan 05, 2021 8:03 am
Forum: Document
Topic: Standard EIA Decade Values Table
Replies: 4
Views: 130

Standard EIA Decade Values Table

Standard EIA Decade Values Table E6-E192 values. Standard EIA Decade Values Table : https://proaudiodesignforum.com/images/html/Standard_EIA_Decade_Values_Table.html Dark theme version : https://proaudiodesignforum.com/images/html/Standard_EIA_Decade_Values_Table_Dark_Theme.html Tables courtesy of ...
by mediatechnology
Tue Jan 05, 2021 6:17 am
Forum: The Peabody Lounge
Topic: Entropy
Replies: 1190
Views: 463492

Re: Entropy

I recall that we cut off the old stops with a hack saw and then used emery cloth to de-burr the copper line before installing the Shark Bite.
by mediatechnology
Tue Jan 05, 2021 6:12 am
Forum: Pro Audio Design
Topic: Cohen/Transamp output stage
Replies: 30
Views: 3536

Re: Cohen/Transamp output stage

Paul - With AudioTester under Win 7 I don't lose level calibration. I do have to be careful about bumping the input pots on the Focusrite but that's it. Both AudioTester and the Focusrite support ASIO to avoid Windows sound. You can download and run the full-function AudioTester: The unlicensed vers...
by mediatechnology
Tue Jan 05, 2021 5:55 am
Forum: The Peabody Lounge
Topic: The Corona Virus Hoax of 2020
Replies: 318
Views: 34058

FDA Admits PCR Tests Give False Results

FDA Admits PCR Tests Give False Results, Prepares Ground For Biden To "Crush" Casedemic The FDA today joined The WHO and Dr.Fauci in admitting there is a notable risk of false results from the standard PCR-Test used to define whether an individual is a COVID "Case" or not. This matters significantl...
by mediatechnology
Mon Jan 04, 2021 7:16 am
Forum: Pro Audio Design
Topic: Cohen/Transamp output stage
Replies: 30
Views: 3536

Re: Cohen/Transamp output stage

Paul - Now that you've got a Windows machine get a Focusrite 2i2 (USB) and a licensed copy of AudioTester. Your total outlay will be about $200.
by mediatechnology
Mon Jan 04, 2021 7:11 am
Forum: The Peabody Lounge
Topic: Entropy
Replies: 1190
Views: 463492

Re: Entropy

JR - You need to look into Shark Bite "stop" valves. No plumber required.

I have a number of the Shark Bite stops installed on the copper lines.

https://www.sharkbite.com/products/push ... top-valves
by mediatechnology
Sat Jan 02, 2021 5:07 pm
Forum: Test, Measurement and Repair
Topic: The iDefender USB Ground Isolator
Replies: 2
Views: 145

The iDefender USB Ground Isolator

The iDefender3.0 plugs into your computer USB port and auto-detects if there is more than one earth and will ‘intelligently’ disconnect the computer earth for cleaner sound. If your DAC is USB powered, the iDefender3.0 requires an external 5 volts to break the earth. It works pretty well with our 5...
by mediatechnology
Sat Jan 02, 2021 4:44 pm
Forum: Pro Audio Design
Topic: Cohen/Transamp output stage
Replies: 30
Views: 3536

Re: Cohen/Transamp output stage

Phase and amplitude related null errors will sound less abrasive than distortion differences when so isolated.
The phase an amplitude differences will just sound like EQ.
by mediatechnology
Wed Dec 30, 2020 4:51 pm
Forum: Pro Audio Design
Topic: Cohen/Transamp output stage
Replies: 30
Views: 3536

Re: Cohen/Transamp output stage

The discrete stage inverts and the op amp which follows it inverts it again.
So its non-inverting overall.
by mediatechnology
Wed Dec 30, 2020 4:44 pm
Forum: Pro Audio Design
Topic: Cohen/Transamp output stage
Replies: 30
Views: 3536

Re: Cohen/Transamp output stage

ilya wrote:
Wed Dec 30, 2020 4:36 pm
So to make sure I did that correctly, here's the crude scheme attached. Is it how 1606 should be connected to the Cohen circuit?
That's it though the polarities on the 1606 are reversed.
The top one is 1606 positive.