This circuit is from March 1978 Radio Electronics. The 4-digit circuit uses a period module and is battery powered. The main integrated circuits are CMOS and TLL.
Some of the components used in this circuit are not very common today. The circuit is from a 1996...
This circuit, ideal for those who have signal problems in the UHF band, mainly in the reception of digital...
The integrated circuit used is not common today and the voltage gain is unitary. The circuit is...