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See the [[067-0502-00]] page for a comparison of the -00 and -01 models. | See the [[067-0502-00]] page for a comparison of the -00 and -01 models. | ||
The HV supply uses a tube V427, to regulate the +300V supply. The manual lists V427 as a [[7734]], a triode-pentode, however some models contain a small circular adapter board (670-1860-00,388-2423-00) to adapt the [[B9A_base|noval tube socket]] to a [[Compactron_base|Compactron socket]] and use a [[6G11]] double pentode instead. The adapter PCB connects the screen grid and plate of the beam power tube together in a triode configuration. These models also have [[6G11]] printed below V427 on the chassis. | The HV supply uses a tube V427, to regulate the +300V supply. The manual lists V427 as a [[7734]], a triode-pentode, however some models contain a small circular adapter board (670-1860-00, 388-2423-00) to adapt the [[B9A_base|noval tube socket]] to a [[Compactron_base|Compactron socket]] and use a [[6G11]] double pentode instead. The adapter PCB connects the screen grid and plate of the beam power tube together in a triode configuration. These models also have [[6G11]] printed below V427 on the chassis. | ||
The output amplitude can be reduced down to 0.2 μV using the [[067-0529-00]] 1000:1 precision divider. | The output amplitude can be reduced down to 0.2 μV using the [[067-0529-00]] 1000:1 precision divider. | ||