UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Oscilloscope question

woodchips · 22nd May 2020, 10:51 am

I went through all sorts of scopes and now use a Tek 7603/7623.

Why? Fast enough for what I want but have the sampling plug ins if needed. Yes, stuffed full of transistors and passives, but a replacement timebase or amplifier costs nothing if you need a spare. You can actually fix them, manuals available, no digital electronics, no software. I can read the dials on the switches, never need to transfer to a computer.

Did use the Tek 24x5 series for years but all failed, and they are pigs to fix, so traded backwards.

I also got caught by the input signal voltage limitations at high frequency, the capacitance across the attenuator makes it more easy to destroy the input digitiser than you would expect. With the 7603 it is just transistors, cheap and seems to be more robust.

22nd May 2020, 10:51 am	#7
woodchips Octode Join Date: May 2010 Location: Grantham, Lincolnshire, UK. Posts: 1,177	Re: Oscilloscope question - not vintage I went through all sorts of scopes and now use a Tek 7603/7623. Why? Fast enough for what I want but have the sampling plug ins if needed. Yes, stuffed full of transistors and passives, but a replacement timebase or amplifier costs nothing if you need a spare. You can actually fix them, manuals available, no digital electronics, no software. I can read the dials on the switches, never need to transfer to a computer. Did use the Tek 24x5 series for years but all failed, and they are pigs to fix, so traded backwards. I also got caught by the input signal voltage limitations at high frequency, the capacitance across the attenuator makes it more easy to destroy the input digitiser than you would expect. With the 7603 it is just transistors, cheap and seems to be more robust.