This setting appears elsewhere in this section. This was obtained from Texas documentation from the 90s. The activation time is given by R1 and C1 and in this case it is in the order of a few minutes.
This circuit is interesting for experiments and can be part of the bench in the form of a module. The...
This RF wattmeter was found in an American 1980s documentation. The components are common and the...
The configuration shown allows to obtain a high voltage gain for FETs. FETs can be BF245 or...