Search found 3 matches

by steveu
Sat Aug 11, 2018 6:42 pm
Forum: Pro Audio Design
Topic: A Super-Simple LED Peak Flasher Audio Overload Clipping Indicator Using the TL431
Replies: 39
Views: 11607

Re: A Super-Simple LED Peak Flasher Audio Overload Clipping Indicator Using the TL431

Hey Guys, two things: 1. Seems like TLV431 vs TL431 has a Vref of only 1.25 vs 2.5V. Very confusing eh? 2. Some simulation models "generate" Vref if the Kathode voltage is less than Vref. Strange false behavior! OK, 3. Similar devices (~LT1009) look the same but are not programmable except for a few...
by steveu
Mon Jul 09, 2018 2:14 am
Forum: Build
Topic: Is solid state relay capacitance bad for audio?
Replies: 5
Views: 4095

Re: Is solid state relay capacitance bad for audio?

Given what you are trying to do, mechanical relays are probably the only way, and even then you may get noise and crosstalk. A binary tree will give you N+1 selection from N cascaded relays. There are Mux chips but opto or not, there are real limits to V/I linearity, voltage range, resistance and lo...
by steveu
Thu Jul 05, 2018 7:29 pm
Forum: Pro Audio Design
Topic: A Super-Simple LED Peak Flasher Audio Overload Clipping Indicator Using the TL431
Replies: 39
Views: 11607

Re: A Super-Simple LED Peak Flasher Audio Overload Clipping Indicator Using the TL431

LOL! I too am guilty of being unkind on occasions that I was unimpressed. This is a simple positive level detector that you can put outside an existing amp. But for integrated into an amp, there are places in the feedback loop that provide clear indication that the range of the output has been excee...