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The Buffer Board can be used to build 4 types of buffer circuits each one based upon a different semiconductor device:
• Silicon NPN
• Germanium PNP
• OPAMP
• FET
Each of the circuits perform in a slight different way but they show similarities in terms of:
• high input impedance
• low output impedance
• flat frequency response
It is possible to build a simple opamp booster too, check the docs for more info!
Suitable enclosures: 1590A, 1590B