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Old 30th Oct 2021, 10:39 pm   #35
AdrianH's Avatar
Join Date: Mar 2020
Location: Blackburn with Darwen, Lancashire, UK.
Posts: 1,044
Default Re: 5FP7 project starting with the focusing coil.

I have added a second stage EF91 as a reversal of the original sawtooth, basically using the circuit that would normally drive an electrostatic CRO symmetrically. But with a change of cap values I have reduced the output of the waveform to approx a 50 Volt peak, it may also provide a little bit less loading on the first stage.#

Next step is to add the EL84 driver for the transformer and keep my fingers crossed it will work.

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