28-06-2024, 10:24 AM
(This post was last modified: 28-06-2024, 10:27 AM by Mike Watterson.)
See this also about heater control: http://tronola.com/html/tube_analyzer_yo...page1.html
I'm not doing that.
The IRF510 does work very well instead of the IRF1404Z, but that is only for the internal supply. However the pulse width and thus the voltage seems wrong. With 19V PSU and setting of Vh = 9.5V it should look like 50% and it's much less. I'll try a different tracer.exe as there are many available and the Cal file / settings look correct.
There is also an alternate 3rd party GUI I've never tried.
I do now have a massive toggle switch for a fixed level external PSU rather than separate 2mm patch cables direct from valve base patch to PSU.
I'm not doing that.
The IRF510 does work very well instead of the IRF1404Z, but that is only for the internal supply. However the pulse width and thus the voltage seems wrong. With 19V PSU and setting of Vh = 9.5V it should look like 50% and it's much less. I'll try a different tracer.exe as there are many available and the Cal file / settings look correct.
There is also an alternate 3rd party GUI I've never tried.
I do now have a massive toggle switch for a fixed level external PSU rather than separate 2mm patch cables direct from valve base patch to PSU.
