This circuit is from an 80's publication. It makes use of small 6 V x 50 mA incandescent lamps. The diodes can be general purpose or even 1N4002. The transformer is 6.3 V with 100 mA or more current.
This bench circuit had its assembly described in the Radio Electronics magazine of February 1962....
We show in the figure how to implement the No-AND or NAND logic function using a general-purpose transistor....
This circuit has been found in an old documentation, but can be used as input shield for current...