Level Indicator (CB4890E)

This 3-step level indicator uses only passive components. LEDs are common and trimpots can be 4k7 which a current commercial value.

Microchip Launches New Development Board for Designing with 16-bit and 32-bit PIC® Microcontrollers
The New Microchip development board is targeted to designers who work with 16- and 32-bit PICs....
Sweep Generator (CB3880E)
This sweep oscillator was found in 1980s American documentation and can be assembled with current...
BeagleBoard X15
May 2017 - The new X15 dream board can now be purchased from Mouser Electronics with a Texas...