P1 on this Radio Shack circuit is a 6 V lamp with current up to 500 mA depending on Q2. The frequency is given by C1 which can have a modern standard value such as 3.3 uF or even 4.7 uF.
This circuit was found in an American documentation. Its purpose is to allow the use of a digital...
The frequency of this oscillator depends on the capacitors, being able cover the range between 1...
January 2017 – The bq35100 integrated circuit, a charge monitor and EOS for non-rechargeable...