This circuit is intended for use with common oscilloscopes having been found in documentation on instrumentation from the 1970s. The capacitors are of the ceramic type with low parasitic inductance.
The critical component of this circuit is the transformer. T1 and T2 can be BD135 and T3 / T4 can...
Found in Popular Electronics from the 90s, this circuit can employ other low power audio...
This circuit is from a 1967 publication. It is possible to power a fluorescent lamp from a 12 V...