newbie: duplicating oscilloscope image on a TV

capture the oscilloscopes image and record it using a PC

oscilloscope. There's socket on the front called 'EXT' but

don't know if it's an output socket or input one and I

but I'll try that if there's no other options. Thanks

The camera is about your only option. The "EXT" is a trigger or horizontal sweep input, not an output.

capture the oscilloscopes image and record it using a PC

oscilloscope. There's socket on the front called 'EXT' but

don't know if it's an output socket or input one and I

but I'll try that if there's no other options. Thanks

most CRTs don't scan the display like a TV does (meaning the camera is your only option)

capture the oscilloscopes image and record it using a PC

oscilloscope. There's socket on the front called 'EXT' but

don't know if it's an output socket or input one and I

but I'll try that if there's no other options. Thanks

No, it is not possible, except by photographing the oscilloscope's image with a camera. Reason is that the 'scope does not display an "image"...it displays a "trace". Meaning that the visible spot created by an electron beam is deflected by separate X and Y signals. X is usually the (internally-generated) time base; Y is usually the (scaled) input voltage. On some 'scopes, there is a Z input which amounts to the intensity (brightness) of the beam. So, what you see on the 'scope's tube has no resemblence to a "picture" in the television sense.

The "EXT" port on your 'scope is almost certainly an input for externally triggering the beam sweep (external time-base). It has nothing to do with the "picture" on the 'scope's tube. On some 'scopes, you can feed an external composite (video+sync) signal into the EXT port for working on video circuits.