Discussion in 'Homebrew and Kit Projects' started by W1VT, Jul 22, 2020.
is it built in a transformer shield casing?
More than likely that aluminum enclosure was purchased at Radio Shack. As I recall the store near Ala Moana Honolulu had a supply of aluminum boxes and enclosures. I recall buying a couple of aluminum chassis from that store that were 2 and 3 inches high. I used to visit Radio Shack stores looking for old stock items.
Frequency counter kit: https://forums.qrz.com/index.php?threads/beginner-project-frequency-counter.745719/
old radio FURUNO FM-250 MODS
This is my first project to control the light strip
The very first homebrew project I ever built was a code practice oscillator using a 555 timer. Very simple circuit built on perf board, and it worked!
I didn't really need a code practice oscillator since I was a CW intercept operator at the time and had passed the 20 WPM code test to get my license, but I just wanted to see if I could build a circuit from scratch. Of course that oscillator is long gone, but some time back I built another one just for the nostalgia.
I got one of these for Christmas when I was 13, but mine was the 160-in-one. I built many projects with it, and actually still have it. I need to bring it out and let my son play with it.
I built one of these before. Very simple and effective transmitter circuit, but you really need an output filter on it because this circuit is really bad about harmonics.
1 transistor 7 MHz CW transmitter, no soldering.
2 transistor 7 MHz CW tx with more power
Above tx making contacts
WOW thats sick I want to make one!