Pro Audio Design Forum

Massive Peer-Reviewed Mask Study Shows 'Little To No Difference' In Preventing COVID, Flu Infection https://www.zerohedge.com/political/massive-mask-study-shows-little-no-difference-preventing-covid-flu-infection The study: https://www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD006207.pub6/epd...

Found this document which shows DIN connector pin numbers:

Note that the 5 pin 180° and 240° have different order.

I'm frequently asked how to do switchable termination for the Flat Moving Coil Preamp The simplest termination scheme uses a 6 pin female connector plugged onto the termination jumper header. This option provides four values: 10, 30, 100 and 1KΩ or any three values <1KΩ plus 1KΩ. The switch wires d...

WTF. Here is what I get from the two links: NOTICE TO USERS IN FRANCE Because of French government demands to remove creators from our platform, Rumble is currently unavailable in France. We are challenging these government demands and hope to restore access soon. MIrrored videos: Project Veritas P...

Project Veritas Exposes Pfizer Executive Discussing Mutating Covid-19 https://rumble.com/v2754pg-project-veritas-exposes-pfizer-exec-discussing-mutating-covid-19-virus-for-.html And then an exorcism begins... https://rumble.com/v279jei-pfizer-director-destroys-ipad-containing-project-veritas-underc...

Weller Catalog

While shopping for a new soldering station I stumbled upon the complete Weller catalog including Xcelite.
Thought it might be a good idea to post it here.

https://proaudiodesignforum.com/images/ ... atalog.pdf (220 MB)

"Class AB Amp Uses Two Floating Cells," Joseph Ting, EDN, March 19, 2009. https://proaudiodesignforum.com/images/pdf/Class_AB_Amp_Uses_Two_Floating_Cells_Ting_EDN_March_2009.pdf https://proaudiodesignforum.com/images/jpg/Class_AB_Amp_Uses_Two_Floating_Cells_Ting_EDN_March_2009_Figure_1_40...

terkio: Well if switchers continue to have long lead times we may still need those linear supplies.

flyboy71: Nice work on the lab supply!

I do have another fully-assembled Monco available: https://ka-electronics.com/shop/index.p ... uct_id=171

This is the last board from the first run.

Bare PC boards and boards with ICs will be available early February 2023.

FAA Quietly Indicates that US Pilots’ Hearts Are Damaged After Taking Vaccines https://www.thegatewaypundit.com/2023/01/faa-quietly-updates-requirements-pilot-ekgs-indicating-pilots-hearts-no-longer-normal-attributed-vaccines/ In the October 2022 version of the FAA Guide for Aviation Medical Examin...