Tektronix type 555 oscilloscope, over 100 tubes inside!
37:37
Standing Inside a Broadcast Transmitter While it's ON!
29:43
EEVblog #1185 - Dumpster Tek 500MHz TDS540D Scope
58:12
TEKTRONIX TYPE 503 Electrical Troubleshooting And Repair!
29:57
Tektronix Printed Circuit Boards 1969
58:43
Tools For The Bench- High Voltage Power Supply Repair!
48:42
Oscilloscope Restoration
29:21
Restoring an HP-120B Oscilloscope from 1961!
13:16