Author Topic: The Quadrupole Mass Spectrometer  (Read 1040 times)

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Offline ikraseTopic starter

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The Quadrupole Mass Spectrometer
« on: March 13, 2018, 08:05:11 am »
I've finally bought the first parts to my Quadrupole Mass Spectrometer build: some small air variable caps.
 

Offline ikraseTopic starter

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Re: The Quadrupole Mass Spectrometer
« Reply #1 on: March 15, 2018, 06:55:57 pm »
Was originally planning to to build my own 300 KHz to 3MHz (approximately) amplifier - roughly 40W and using Class AB probably. Maybe an IRF510 amp.

However I see there are some economical amps of this type on eBay, though most have a bit higher frequency rating that might need toroid rewind.

I see that logarithmic power detector amps are also available as eBay Modules.
 

Offline hound

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Re: The Quadrupole Mass Spectrometer
« Reply #2 on: November 09, 2019, 02:41:06 am »
If you are still working on this project, you might want to check out US patent 5613294.  It describes an implementation of a quadrupole mass spectrometer, and it has a pretty detailed description of the electronic circuits used for rf generation, with a circuit diagram.
 


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