This amplifier stage was equipped with a Motorola radio from the 70s. The transistors were from that time and the single transistor output used an autotransformer.
This circuit was found in an old Popular Electronics. With it we can check the operation of a...
This circuit is from a documentation from the 90s. The transistor can be any general-purpose FET...
This circuit is from old documentation, but can be easily assembled as components are still...