I have a Jeol JSM-T200 in my living room at the moment.
Thumbs up!
-I have a few boxes of filaments to my SEM, do you have spare ones?
I have only the one that I found inside. Everybody is saying that rebuilding the filaments in cheap and easy, but living in Europe it ads up to a significant amount. Do you have a picture of the filemant with approx. dimensions?
but in order to just reach below 1 mbar, to start the turbo pump, you could probably seal the chamber with Vaseline
Well, after I got new seals for my aperture I still get the huge leak on the same location. I suspect that I'll have to disassemble the whole column.. running out of options here.
Disassembled aperture holder image for your pleasure is in attachment.
On a different note: I'm thinking of at least partially giving up on the electronics unit. I'm thinking of just building a ramp raster generator from the two DACs in STM32, plug it into existing working power amplifiers and oscilloscope and hopefully I'll get an image.
In an effort to do that I decided to test the photo-multiplier supply and it doesn't work.. or to be precise: board contains two completely populated 1.5kV power supplies and the one that was wired to the photo-multiplier is dead, but the completely unused one is fine (yes, there is actually a second supply that with certainty wasn't used for anything).
Back up all of those Eproms before you go much further.
It's an excellent idea, but I don't have eeprom reader.. I could hack something together, but with current plan to forget about the Z80 parts, I don't think it's worth the effort.