Re: TDS744 (NOT TDS744A) Option Resistors and Configuration
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Hi, Jared
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Thank you for your comments regarding the 1GHz mod . My particular unit has the resistor pattern for determining the model of scope? but as it appeared to make little difference what the pattern was -- should I imagine that maybe the acquisition pcb was changed at some point in a repair possibly for a later version or could it just be that the first version of firmware did not know of future scope models . Thinking of that last case , have you heard of anyone upgrading the firmware to a later version on this scope model . regards Brian (UK) On Wednesday, 31 January 2024 at 09:57:12 GMT, Jared Cabot via groups.io <jaredcabot@...> wrote:
I've never played with a TDS744 myself, so I don't know any of the actual details as such. Upgrading the bandwidth would depend on there being a corresponding model with the higher bandwidth to upgrade to. I'm not sure if this is the case with the TDS744? I don't think there was a non-letter TDS784, only A, C and D models? If the upgrade is successful, and the capacitors are removed, the scope will work, but all that is then needed is a calibration to effectively make the scope 100% identical to the higher model scope besides the front panel sticker. (I say 'all that is then needed', but it does require the acquisition of some decently specced and old/obsolete gear, but that's half the fun, right? :D ) |
Brian