We found this circuit in a Philips documentation from 1965. The circuit uses a common LDR sensor and the transistors are general purpose types. TR2 can be a BD135.
This simple indicator circuit was found in a documentation from the 90s. Trimpots can have values...
This circuit provides two outputs of the same signal. One with the original phase and the other...
January 2017 – The bq35100 integrated circuit, a charge monitor and EOS for non-rechargeable...