3 ms·

I thought his method of multiplexing the single channel was very smart. I guess it's more common on 2 channel or high end 4 channel scopes to have a dedicated t

I thought his method of multiplexing the single channel was very smart. I guess it's more common on 2 channel or high end 4 channel scopes to have a dedicated trigger input, which I've checked this one doesn't have. That said, there're digital inputs that could've been used. Presumably from whatever was controlling the laser.

estimator7292 1y ago
Frankly it's uncommon to not have a trigger input. I'm not sure I've ever seen a DSO in person without a trigger in.
- MBCook 1y ago
  I was confused by that part of the video exactly because I wondered why he wasn’t using the trigger input. Or, would it normally be possible to use a different channel as the trigger for the first channel?
  - db48x 1y ago
    He explained that. His inexpensive oscilloscope _can_ trigger from the second channel, but only at one billion samples per second. Where’s the fun in that?
    - MBCook 1y ago
      Oh that’s right. I saw this video earlier in the week and forgot that. Thanks.
      - db48x 1y ago
        You’re welcome.
- Neywiny 1y ago
  I guess I'm used to it. My main scope is an SDS1204 which doesn't have one (and when I inherited it the digital channels were reportedly blown up) despite being fairly capable for its combination of age and price