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A factory modification, MOD 108G, was available that increased the accelerating voltage to 24 kV. | A factory modification, MOD 108G, was available that increased the accelerating voltage to 24 kV. | ||
The 1968 catalog lists an RM544 Mod 720 which has a direct-access plug-in and has 1 ns risetime (equiv. 350 MHz). | The 1968 catalog lists an RM544 Mod 720 which has a [[500-Series Direct Access Plug-in Unit|direct-access plug-in]] and has 1 ns risetime (equiv. 350 MHz). | ||
The vertical amplifier and low voltage power supply of the 544 are the same as those of the [[546]] and [[547]]. | The vertical amplifier and low voltage power supply of the 544 are the same as those of the [[546]] and [[547]]. |