Technology

Weller WHA 900 Hot air station

Weller WHA 900 Hot air station

Weller (they make some of the best soldering irons) has a new air rework station. We covered some hot air tools today, and this just popped up from the Weller blog. Price: $499 — The WHA900 maintains nozzle temperature, regardless of the air flow rate. That’s because the built-in closed-loop temperature feedback control, which uses […]

Crystal radios & round up

Crystal radios & round up

Kevin Kelly has a great round up of crystal radio builds, free plans and kits (some I haven’t seen either) – Link. Inspired related round up: HOW TO – Building a crystal radio out of household items – Link. Refugee Radio – An energy-independent AM-receiver radio… – Link. Building a radio in 10 minutes – […]

HOW TO – Make a digital oscilloscope

HOW TO – Make a digital oscilloscope

fpga4fun.com shows how to make a single channel 100MHz/100MSPS (100 mega-samples-per-second) RS-232 based (and USB) digital oscilloscope (an oscilloscope allows you to view signal voltages) – Link. Related: Oscilloscope art – Link. Oscilloscope clock – Link. PIC Based Oscilloscope with LCD – Link. ScopeOnPC – Turn your PC into a an oscilloscope – Link. Using […]