This circuit uses a diode as a radiation sensor. The operational ones are old because the publication is from the 80's, but modern low voltage equivalents can be tested.
This circuit for analog video signals was found in a Linear Technology integrated circuit manual. The...
This tuned circuit was found in a 1966 Electronic Circuit Handbook. The transistor can be any...
This Siliconix circuit was found in a 1980s documentation. The coil consists of 18 turns of 22...