Uploaded Tue Dec 30 2025 06:45 pm

strain-gauge sensor schematic.

Uploaded Tue Dec 30 2025 06:45 pm

lamp pseudo-random flasher schematic.

Uploaded Mon Jan 05 2026 10:14 pm

Uploaded Tue Dec 30 2025 06:45 pm

One tube AM transmitter schematic.

Uploaded Tue Dec 30 2025 06:45 pm

High quality AM transmitter schematic.

Uploaded Tue Dec 30 2025 06:45 pm

Mid quality AM transmitter.

Uploaded Tue Dec 30 2025 06:45 pm

Arduino Micro schematic.

Uploaded Sun Dec 28 2025 11:47 am

Two small FM transmitters

Uploaded Tue Dec 30 2025 06:45 pm

Single stacer schematic.

Uploaded Tue Dec 30 2025 06:45 pm

Matchbox in-circuit transistor checker schematic.

Uploaded Sun Dec 28 2025 11:26 am

Nicad battery discharger/ capacity indicator.

Uploaded Sun Dec 28 2025 11:47 am

Nixid tube driver circuits.

Uploaded Sun Dec 28 2025 11:37 am

TTL audible logic probe

Uploaded Tue Dec 30 2025 06:45 pm

TTL audible logic probe schematic.

Uploaded Tue Dec 30 2025 06:45 pm

v variable voltage power supply schematic.

Uploaded Tue Dec 30 2025 06:45 pm

SE transistor power amp schematic.

Uploaded Sun Dec 28 2025 11:26 am

Make a shocker out of a 9v battary
Planes inside 
 

Uploaded Tue Dec 30 2025 06:45 pm

FM wireless microphone schematic.

Uploaded Sun Dec 28 2025 11:26 am

NICD battary Charger that uses
Temperature control and it's a constant current. 

Uploaded Tue Dec 30 2025 06:45 pm

Build the Elektor wheelie. A single axle, two
wheel elec vehicle (segway clone).

Uploaded Tue Dec 30 2025 06:45 pm

USB power injector Rev.