- Trusted Seller Tektronix 5A21N- Manufacturer: Tektronix
- Model: 5A21N
 The Tektronix 5A21N is a Differential Amplifier Plug-In that is used with the Tektronix 5100-Series mainframes. Cary, NC

The Tektronix 5A21N is a Differential Amplifier Plug-In that is used with the Tektronix 5100-Series mainframes.