Search found 3798 matches

by mediatechnology
Sat Jul 20, 2019 7:18 am
Forum: Pro Audio Design
Topic: New: A Direct-Coupled Input-Capacitorless Active Mic Preamp
Replies: 108
Views: 111762

Re: New: A Direct-Coupled Input-Capacitorless Active Mic Preamp

I first proposed an "input capacitorless" preamp back in 2007 on another fora. At the time I recall Gus mentioning that he had seen a floating input instrumentation amp published. If I remember correctly he thought the source was either TI or Burr Brown. I may have found the Burr Brown example in t...
by mediatechnology
Fri Jul 19, 2019 7:26 pm
Forum: The Peabody Lounge
Topic: When The Deep State Acts Like It Has Something To Hide It Probably Does
Replies: 0
Views: 19

When The Deep State Acts Like It Has Something To Hide It Probably Does

When The Deep State Acts Like It Has Something To Hide It Probably Does Satellite view of Little Saint James Island from Google Maps: https://www.google.com/maps/@18.3004292,-64.8274744,1030m/data=!3m1!1e3?hl=en https://proaudiodesignforum.com/images/jpg/Google_Maps_Little_Saint_James_Tennis_Courts...
by mediatechnology
Fri Jul 19, 2019 12:01 pm
Forum: The Peabody Lounge
Topic: Something to ponder about IoT
Replies: 38
Views: 2572

Re: Something to ponder about IoT

I thought you meant at the skin barrier.

In 1982 we used a transformer: https://patents.google.com/patent/US4495384A/en
by mediatechnology
Fri Jul 19, 2019 11:47 am
Forum: The Peabody Lounge
Topic: Something to ponder about IoT
Replies: 38
Views: 2572

Re: Something to ponder about IoT

I believe its Bluetooth.

I knew someone who had an implantable device battery fail and the chemical leakage almost killed him.
by mediatechnology
Thu Jul 18, 2019 6:57 pm
Forum: Pro Audio Design
Topic: MicMix MasterRoom XL-305 Spring Reverb Clone
Replies: 76
Views: 129366

Re: MicMix MasterRoom XL-305 Spring Reverb Clone

I found that when the springs are laid out horizontally - like yours - that you can almost play it like an instrument damping some of the springs with your fingers but not others to change the tone. You might play with using a small block of foam and then moving it between the transducers along the ...
by mediatechnology
Thu Jul 18, 2019 6:47 pm
Forum: The Peabody Lounge
Topic: Something to ponder about IoT
Replies: 38
Views: 2572

Neuralink: Something to ponder about IoT

Elon Musk's plans to merge computers with people's brains were on full display yesterday during Musk's presentation updating the public on what brain-computer interface company Neuralink has been up to. The company has so far been able to implant as many as 1,500 electrodes in lab rats and says its...
by mediatechnology
Wed Jul 17, 2019 7:47 pm
Forum: Pro Audio Design
Topic: MicMix MasterRoom XL-305 Spring Reverb Clone
Replies: 76
Views: 129366

Re: MicMix MasterRoom XL-305 Spring Reverb Clone

Great work! Glad you like it. :D Thanks for the pics. I remember MicMix installing foam plugs inside the springs. I don't fully remember why some lines had them and others didn't but I think it was to tame a particular line that was longer than the others. Are you putting the foam under the springs ...
by mediatechnology
Tue Jul 16, 2019 6:42 pm
Forum: The Peabody Lounge
Topic: Entropy
Replies: 961
Views: 352781

Re: Entropy

Going back to the water-contaminated fuel...

I think a can of Berryman's carb cleaner works at making water-contaminated fuel burnable.
Same principle as Heet which Bill mentioned.
by mediatechnology
Tue Jul 16, 2019 6:36 pm
Forum: The Peabody Lounge
Topic: home improvement turns into science fair projects?
Replies: 10
Views: 159

Re: home improvement turns into science fair projects?

My basement is at 84% RH right now and it hasn't rained in 10+ days.
I need a plan.
by mediatechnology
Tue Jul 16, 2019 8:14 am
Forum: Pro Audio Design
Topic: A Low Noise Balanced Input Moving Coil Preamp Using the ZTX851
Replies: 483
Views: 174987

Re: A Low Noise Balanced Input Moving Coil Preamp Using the ZTX851

A an FFT/THD measurement of the second PC board. Signal flow: DAC > THAT1646 > 60dB Pad > Preamp > A/D Left channel (blue): Preamp Out Right channel (red): THAT1646 Out Generator Monitor I used 0 dBu output since at higher levels the THD differences between the test chain and the DUT become very sm...