Search found 5469 matches

by mediatechnology
Thu Nov 19, 2009 3:44 pm
Forum: Build
Topic: ms matrix- at last
Replies: 8
Views: 32843

Re: ms matrix- at last

Great job on the build Milos!

I haven't zoomed the images in the links. What are the switches for? It looks like some are ground lift and the other group bypass or mutes?

Miko - My vote is a dual mono/MS Pico compressor. No one's done that one here.
by mediatechnology
Wed Nov 18, 2009 8:37 am
Forum: Build
Topic: Mid Side M-S Matrix Construction Information
Replies: 121
Views: 445545

Re: Mid Side M-S Matrix Construction Information

Milos - Thanks for the test data. The 1646 line driver doesn't have as good a gain accuracy as the THAT1240 and 1246 line receivers do. You might swap the M and S 1646s and pick-up (or lose) a few dB. Loading by external gear will also have a great effect even if they are exactly unity gain. It does...
by mediatechnology
Mon Nov 16, 2009 4:17 pm
Forum: Pro Audio Design
Topic: Newark Corp now owns Cadsoft
Replies: 11
Views: 22043

Re: Newark Corp now owns Cadsoft

OK, maybe it was Express PCB. I never use that part of it 'cause you do the really hard stuff which is layout.
by mediatechnology
Mon Nov 16, 2009 11:00 am
Forum: Pro Audio Design
Topic: Newark Corp now owns Cadsoft
Replies: 11
Views: 22043

Re: Newark Corp now owns Cadsoft

BTW I think that may have been the Orcad (several versions ago) that had Digi-Key integration.
by mediatechnology
Sun Nov 15, 2009 7:33 am
Forum: Pro Audio Design
Topic: Newark Corp now owns Cadsoft
Replies: 11
Views: 22043

Re: Newark Corp now owns Cadsoft

Do I recall a design package that is affiliated with Digi-Key? IIRC it had libraries for DIgi-Key parts and used Digi-Key PNs to generate the BOM.

Interesting to see what Mouser will do.
by mediatechnology
Wed Oct 28, 2009 7:41 am
Forum: Pro Audio Design
Topic: +24Vdc from +/-15Vdc
Replies: 2
Views: 6433

Re: +24Vdc from +/-15Vdc

Doug:

The second and third from-the-last connection examples here http://us.tdk-lambda.com/lp/ftp/specs/C ... df#page=15 seem to indicate that the input and outputs are floating and that you can common them or use it to provide negative output.

Wayne
by mediatechnology
Sat Oct 24, 2009 11:59 am
Forum: Build
Topic: Interesting Gain Reduction Meter - LCD Analog Pointer
Replies: 0
Views: 12978

Interesting Gain Reduction Meter - LCD Analog Pointer

I recently saw this in Electronic Products: http://www.lascarelectronics.com/dataloggersandpanelmeters/data-logger0905355001195041046.jpg 21 mm! Product Page: http://www.lascarelectronics.com/temperaturedatalogger.php?datalogger=111 Datasheet: http://www.lascarelectronics.com/pdf-usb-datalogging/dat...
by mediatechnology
Fri Oct 16, 2009 11:26 am
Forum: The Peabody Lounge
Topic: Check Out This 9V Battery
Replies: 7
Views: 12890

Re: Check Out This 9V Battery

In typical radials, the metal can is not physically attached to either lead. I ran some experiments on large-value (Cgain) caps and found large differences in capacitance from the can to the terminals. (You would expect this but I wanted to know.) My interest was Cgain capacitors in preamps. At hig...
by mediatechnology
Fri Oct 16, 2009 9:25 am
Forum: Pro Audio Design
Topic: The 48V Phantom Menace Returns
Replies: 11
Views: 24618

Re: The 48V Phantom Menace Returns

We figured that input and output phantom protection of line-level stages was a lot to throw in. There may be a sequel. To answer Roger's question, the published 1646 protection using bridge to rails, works fine. One thing I have found with the 1646 is that OutSmarts makes the part tolerant to stored...
by mediatechnology
Wed Oct 14, 2009 4:14 pm
Forum: Document
Topic: SSL Phase Meter Schematic
Replies: 16
Views: 32157

Re: SSL Phase Meter Schematic

John - I edit a lot of commercial modern music (head/tail trims, normalization etc.) You'd be surprised at the number of entire mixes, or elements in mixes, that have it upside down on the CD. We may now agree that pin 2 is really hot, but that doesn't solve the problem. The other day I was listenin...