This circuit was found in a Raytheon manual from the 60s. The transistor is the CK722, one of the first commercial types. The phone is high impedance.
Photo powered oscillator (CB21909E)
- Details
- Written by: Newton C. Braga
This circuit was found in a Raytheon manual from the 60s. The transistor is the CK722, one of the first commercial types. The phone is high impedance.
