I once again wish I’d done electrical engineering for hobby purposes and then realise how cursed that thought is
-
I once again wish I’d done electrical engineering for hobby purposes and then realise how cursed that thought is
-
I once again wish I’d done electrical engineering for hobby purposes and then realise how cursed that thought is
In an unrelated topic I regularly idly think about building a PLL from discrete components for a homebrew VFO mainly for understanding reasons but I have a lot more time to think about these things than do them
-
In an unrelated topic I regularly idly think about building a PLL from discrete components for a homebrew VFO mainly for understanding reasons but I have a lot more time to think about these things than do them
@vk3xe They are finicky things, and quite involved! It's surprising how many older radios (before the 2000's) had entire boards dedicated to a VFO/PLL circuit! Very interesting to understand, for sure. (the modern projects use a DDS because the VFOs are so fiddly, particularly PLLs)
-
@vk3xe They are finicky things, and quite involved! It's surprising how many older radios (before the 2000's) had entire boards dedicated to a VFO/PLL circuit! Very interesting to understand, for sure. (the modern projects use a DDS because the VFOs are so fiddly, particularly PLLs)
@ai6yr even that’s an interesting point that I don’t know a lot about. I’ve used an si5351 which works just fine but I like understanding fundamentals
-
@ai6yr even that’s an interesting point that I don’t know a lot about. I’ve used an si5351 which works just fine but I like understanding fundamentals
@vk3xe Oh yeah, if you have time I'm sure it would be rewarding to build one... lots to learn/understand about the whole thing anyway! Anyway, I have spent a lot of time debugging PLL lock issues on old radio repairs (all of them due to components drifting beyond spec and needing to adjust something to get them back in the right range).
-
@vk3xe Oh yeah, if you have time I'm sure it would be rewarding to build one... lots to learn/understand about the whole thing anyway! Anyway, I have spent a lot of time debugging PLL lock issues on old radio repairs (all of them due to components drifting beyond spec and needing to adjust something to get them back in the right range).
@ai6yr I definitely don’t have the time
-
@ai6yr I definitely don’t have the time
@vk3xe LOL that's why I have a number of old rigs on my workbench... not fixed for a few years. Got too busy with other life things!
-
@vk3xe LOL that's why I have a number of old rigs on my workbench... not fixed for a few years. Got too busy with other life things!
-
R AodeRelay shared this topic
