We found this circuit in an old neon lamp application manual. The circuit stores a call. The resonant reed-relay is not a common component today.
This circuit is based on the 3 A LM350. The circuit is from Popular Electronics having a...
Standing wave ratio or SWR is an important measure of whether all power from a transmitter is being...
In the figure we have the way to obtain a monostable TTL based on 74121. The circuit appears in...