Dave Allmon
Electronics
Arduino
Stepper Motor Basics
Solar
Solar Panel Characterization
Solar Powered Uno
Solar Powered Pro Mini
Arduino High-Power Outputs
DIY HiFi
DIY Stereo System
Velocity Feedback Subwoofer
DIY Main Speakers
DIY HiFi preamp
Discrete Op-Amps
Second Hackintosh
SD Card Speeds
Switching Transformer Calculator
CCD Spectrograph with Arduino Uno
CCD Spectrograph Fast 8-bit Core
40-pin ATmega Development Board
Telescope
Astrophotography Filter Wheel
Meade 1209 Focuser Upgrade
Meade 1209 Focuser Upgrade (Again)
Raspberry Pi 4B Indi Server
Raspberry Pi 4B Stellarmate Server
Five Telescope 12V Power Boxes
Flat Field EL Panels
WiFi AC Power Control
Telescopes I've Owned
William Optics GT81
Pictures
Contact
M92 Globular Cluster
M92 LRGB
M92 is another cluster in Hercules, often overlooked because of M13.
12" LX600
SBIG STF-8300EN CCD
100 x 10 seconds luminance
20 x 10 seconds each R,G,B
1920px x 1194px
May 2022