Hi, this is just for any other google users. I just got done spam IDing ~20 cheap drug posts. I sure wish some other google goop users would...

Hi, this is just for any other google users. I just got done spam IDing ~20 cheap drug posts. I sure wish some other google goop users would help with this. You just click on the triangle in the upper right corner of the post, (more message actions) Choose 'report abuse' and then spam. three clicks... it would just be nice to have some help. George H. (maybe you are doi

https://www.dropbox.com/s/bud5t07msshhldz/Clipping.jpg?raw=1 This is universalopamp2, level.2, and the current limit should be 1 amp. It's...

https://www.dropbox.com/s/bud5t07msshhldz/Clipping.jpg?raw=1 This is universalopamp2, level.2, and the current limit should be 1 amp. It's behaving like it has internal resistance in series with its output, or a soft current limit. If I use the level.1 amp, which presumably ignores the current limit parameter, it swings to the rails. -- John Larkin Highland Technology...

I am a hard-core scientist with respect for Germany, but... Germany's trashing of their nuclear reactors is the most painfully obvious lunacy...

I am a hard-core scientist with respect for Germany, but... Germany's trashing of their nuclear reactors is the most painfully obvious lunacy with respect to the issue of "climate change". Certainly that's their justification. They must have SOME justification. Looking stupid is not a valid cause. Instead of depending on greenhouse-gas-emissions-free nuclear power, now they are burning...

Suggestions please. Taking a driveway PIR xmtr to modify for other purposes with no actual internal mods. Thinking of using some emitter...

Suggestions please. Taking a driveway PIR xmtr to modify for other purposes with no actual internal mods. Thinking of using some emitter taped to the PIR window to activate the xmtr. Something as simple as a blinking LED to keep the xmtr transmitting while the LED is blinking. Using one of these. 4VWIN Wireless Home Security Driveway Alarm https://www.amazon.com/4VWIN-Wirel...

Some time ago I found Intel video that shows the benefit of ECC memory. The video presents modified ECC memory module with a switch that induces...

Some time ago I found Intel video that shows the benefit of ECC memory. The video presents modified ECC memory module with a switch that induces memory error, then it shows how i5 can't handle such error and how Xeon processor can. Here is the video in question, they show module at time 28-29s: https://www.intel.com/content/www/us/en/processors/xeon/the-value-of-ecc-memory-for-servers.h...

Is it reasonable/possible to build an 8 amp 20 V transformerless power supply from a 120Vac line. I calculate about 180uf plus or minus...

Is it reasonable/possible to build an 8 amp 20 V transformerless power supply from a 120Vac line. I calculate about 180uf plus or minus depending on other components. Maybe 9- 20uf caps in parallel? I'd like to build it into a leaf blower. All plastic, absolutely no metal exposed. I think I've answered my question, I have 12, X rated caps in my junk box, but they are only...

It occurred to me that, in the conventional opamp all-pass 90 degree phase shifter...

It occurred to me that, in the conventional opamp all-pass 90 degree phase shifter circuit, https://www.dropbox.com/s/nfwd32p3z61g15y/90_degree.JPG?raw=1 a fast signal passes through all the opamp stages, so all the amps have to be fast. In this one, https://www.dropbox.com/s/rulyvlt072k49cp/New_All-Pass_1.jpg?raw=1 the fast signals just rip through the big caps in the slow stage...

I'm doing the synchro/resolver board and the top will be paved over with transformers. So a lot of parts will have to go on the bottom...

I'm doing the synchro/resolver board and the top will be paved over with transformers. So a lot of parts will have to go on the bottom of the board. We usually space these boards off the the aluminum box with 0.25" PEMs. This is the sort of box we'll use: https://www.dropbox.com/s/sz4hkou4vm1yrkn/DSC04872.JPG?raw=1 The tallest parts will be electrolytic caps. So does it matter if ...

A laptop backlight was turning off after a few minutes of work and, miracuslously, when turning the laptop off (invokes hibernate) it always...

A laptop backlight was turning off after a few minutes of work and, miracuslously, when turning the laptop off (invokes hibernate) it always came back on. I opened the screen, reseated the inverter connectors, so far it ran through more than an hour. Here's knocking on wood. However, I noticed that the transformer core on the CCFL inverter heats up to the point where leaving my finger o...

In this short movie the guy explains the technology behind his 1kW LLC converter: https://youtu.be/wtcn6rZE1Eg At 0:57 he replaces a...

In this short movie the guy explains the technology behind his 1kW LLC converter: https://youtu.be/wtcn6rZE1Eg At 0:57 he replaces a monolithic 16:2x1 transformer with 4 4:2x1 transformers, which is a basic matrix transformer technology. OK. At 1:50 he merges two U-shaped transformers into a single E core, still fine. At 2:04 I got lost. He removes the center leg of the E core, b...