This an old commercial receiver found in a year 1958 magazine. The circuit uses some transformer available that timer and the transistors are germanium types. The circuit is intended to receive MW stations.
This signal injector and tracer (follower) was found in an old American documentation. The...
This interesting AC / AC converter is only indicated for resistive loads and was obtained in a...
This one-digit TTL modulus for 7-segment display can be parto f digital projects. Many of them can be...