Search found 8 matches

by Jacko
Mon Apr 01, 2019 4:28 pm
Forum: Document
Topic: Circuit Collection of Design Ideas from Electronics and EDN
Replies: 23
Views: 15930

Re: Circuit Collection of Design Ideas from Electronics and EDN

Ultralow Distortion Audio Panpot Amplifier

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ultralow-distortion-panpot-amplifier.pdf
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regards, Jacko
by Jacko
Fri Mar 29, 2019 3:45 am
Forum: Document
Topic: Circuit Collection of Design Ideas from Electronics and EDN
Replies: 23
Views: 15930

Re: Circuit Collection of Design Ideas from Electronics and EDN

LM317 smooths but doesn't regulate:

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LM317 Capacitance Multiplier
by Jacko
Mon Mar 18, 2019 9:49 am
Forum: The Peabody Lounge
Topic: Residential Lighting with LEDs: Retrofitting the Pink Ranch
Replies: 143
Views: 211891

Re: Residential Lighting with LEDs: Retrofitting the Pink Ranch

Jacko - I think the difference you observe may be related to the total illuminated power versus the peak illumination. The incandescent having a lot more area under the spectral curve due to broader emissions and the LED spec'd at is narrower peak. What made me think of this is an FFT analog. Or RM...
by Jacko
Mon Mar 18, 2019 8:53 am
Forum: The Peabody Lounge
Topic: Entropy
Replies: 1051
Views: 383066

Re: Entropy

My chainsaw has a severe gas leak. Must get it fixed before Spring cleanup. The riding mower won't start because the battery has gone down even with a float charger on it all winter. Float charger is crap and probably needs to go in the dumpster. (or maybe modified) The wind blew a shutter off the h...
by Jacko
Mon Mar 18, 2019 8:35 am
Forum: The Peabody Lounge
Topic: Residential Lighting with LEDs: Retrofitting the Pink Ranch
Replies: 143
Views: 211891

Re: Residential Lighting with LEDs: Retrofitting the Pink Ra

My only complaint is that they are not available in bulk, instead they are packaged individually in ridiculous 8 1/2 x 11 hard plastic. By the time I outfit my house with these things I'll have a full 96gal trash bin There is a good reason for that... customers steal, especially expensive items. No...
by Jacko
Tue Feb 26, 2019 12:03 pm
Forum: Test, Measurement and Repair
Topic: Are Linear Bench Supplies Really Quieter Than Switchers?
Replies: 11
Views: 4732

Re: Are Linear Bench Supplies Really Quieter Than Switchers?

Thanks for the update. I bet the AC-powered performance WRT leakage current and hum will vary greatly with the particular USB supply used. Still curious to see if there's a direct galvanic path between the USB DC 0V and the Switcher output 0V. The power supply uses the LT3471 regulator and there do...