A Glow Lamp Ring Counter A glow lamp ring counter capable of counting at rates up to several hundred pulses per second was first reported by Manley and Buckley. A modified version of this ring counter is shown in Figure 3.26 for a count-of-six counter. Any even number may be counted by adding additional pairs of glow lamp-semiconductor diode combinations. [Medium]   [Large] (Pages 61 and 62)

Memory Circuits The properties of the glow lamp make it a very suitable device for several different types of storage or memory circuits. One such memory circuit is shown in Figure 3.28. [Medium]   [Large] (Pages 63 and 64)

Memory Circuit (con't) Another type of memory circuit which is becoming quite popular employs a glow lamp in conjunction with a photoconductor or other type of photosensitive device. The photoconductor has a decreasing resistance as the incident illumination is increased. Figure 3.29 shows one manner in which a glow lamp and photoconductor may be used as a memory circuit. [Medium]   [Large] (Pages 65 and 66)