OT: Wealth creation?

Started by Bill Bowden in sci.electronics.design7 years ago 25 replies

Is there any private wealth creation in the US without government involvement? I've heard stories of Henry Ford copying the idea of assembly...

Is there any private wealth creation in the US without government involvement? I've heard stories of Henry Ford copying the idea of assembly lines from civil war ideas where the government was involved in the assembly of rifles. Sam Walton copying ideas of supply chain management done by universities, Bill Gate benefiting from research done at universities, and CMOS technology developed...


Sensoray 2612 giving erratic results

Started by Chris Jones in sci.electronics.design6 years ago 1 reply

Hello If you are a person from the future searching the internet because you have a Sensoray 2612 ADC board that is giving erratic results,...

Hello If you are a person from the future searching the internet because you have a Sensoray 2612 ADC board that is giving erratic results, especially when it is humid or when there is an electric field nearby, I have the following advice for you: Investigate U12 which is a CMOS logic buffer chip 74HC04. Note that pin 13 and pin 1 are inputs that on my board were left floating. Pin 1...


Voltage controlled duty cycle with a CMOS inverter

Started by Anonymous in sci.electronics.design5 years ago 34 replies

Hi I need a dirt cheap voltage controlled duty cycle I have a couple of inverters on the board that are free to use. Anyone done a...

Hi I need a dirt cheap voltage controlled duty cycle I have a couple of inverters on the board that are free to use. Anyone done a voltage controlled duty cycle with a 5V logic inverters? I can't use a 4046, too expensive I was thinking a free running RC oscillator with a FET to offset the operating point It does not need to be linear, I have a error amplifier wrapped around t...


How to drive this huge LED matrix board?

Started by Jan Panteltje in sci.electronics.design8 years ago 14 replies

Scored some of these today, 7Euro50 each : http://www.baco-army-goods.nl/aanbiedingen/ledmatrix-bord-fds132.html Front: ...

Scored some of these today, 7Euro50 each : http://www.baco-army-goods.nl/aanbiedingen/ledmatrix-bord-fds132.html Front: http://www.panteltje.com/pub/matrix_display_front_side_IMG_4118.JPG Component side, lots of 5 V CMOS, processor, optical interfaces: http://www.panteltje.com/pub/matrix_display_component_side_IMG_4119.JPG Would make a nice Merry Christmas running text. Anybod...


A step up from the TL08x

Started by bitrex in sci.electronics.design3 years ago 11 replies

The TL08x is a work-horse FET input amp but I'm looking for a jellybean CMOS/FET input amp that's a bit better on the GBW and slew rate for not...

The TL08x is a work-horse FET input amp but I'm looking for a jellybean CMOS/FET input amp that's a bit better on the GBW and slew rate for not much more money. Yer standard TL082 has 4 MHz GBW and 13 V/usec slew rate. A couple candidates for around a dollar each in quantity are the TLC082 and the TSX920


Seeking data on California Devices Inc HCS gate arrays

Started by Mike in sci.electronics.design7 years ago 14 replies

Long shot ... I'm looking for any data or reference material on a 1980's era gate array (ULA) chip family. Google and data searches are not...

Long shot ... I'm looking for any data or reference material on a 1980's era gate array (ULA) chip family. Google and data searches are not coming up with much, so I'm hoping someone may have this sort of stuff tucked away under "Obsolete!" Company: California Devices, Inc. (CDI) Date: 1983-1984 era HC Series (near) or HCS Series (ideal) Metal Gate CMOS array, Digital only, 4 micr...