This circuit is from the 1983 Intersil Databook. The display is plasma and must be excited by a high voltage circuit. The components used in this configuration are not common today.
This circuit, which may have appeared elsewhere on this site, is from the integrated...
We found this circuit in a 90s Radio Electronics. The circuit uses a transconductance operational...
This circuit was obtained from an 80's documentation from General Electric. The circuit uses an...