Tektronix TDS 540 Oscilloscope

Models in this family

1. 

   TDS 540 Oscilloscopeproduced 1991–

   The TDS 540 is a 500 MHz, 1 GS/s quad-channel digital oscilloscope introduced in 1992.

   Cited variants

   Designation	Generation	Vintage	Changes	Source
   TDS540A	—	—	Uses the same amplifier IC 155-0378-00 as the base TDS540; has different part numbers for assemblies.	w140.com[1]
   TDS540B	—	—	Uses the TriStar DSP processor for fast waveform processing; includes updated firmware and hardware revisions.	w140.com[1]
   TDS540C	—	—	Further revision with updated firmware and part numbers; includes options like 1M memory and hard disk drive upgrades.	w140.com[1]
   TDS540D	—	—	Later revision with updated firmware and hardware; uses M377 amplifier in some models.	w140.com[1]

Sources