12-06-2016, 09:00 AM
Function of the DPDT slide switch has been sussed. The DFM module has an extra function that switches the display between decimal and non- decimal mode. I might have a frequency output of 4.567kHz shown with the switch in the first position, or just plain 4 in the second. Freewheeling of the DFM has been cured, tracked down to the aforementioned DPDT switch that needed a good clean up.
I'm wondering if the switch arrangement was due to whatever the constructor had in the parts bin and not a design feature that was not taken further. What I will try later is move the green wire from one switch pole to the other and see if a different set of frequencies come out. If so, a c/o switch in place of the unused yellow plug point will expand the range.
I'm wondering if the switch arrangement was due to whatever the constructor had in the parts bin and not a design feature that was not taken further. What I will try later is move the green wire from one switch pole to the other and see if a different set of frequencies come out. If so, a c/o switch in place of the unused yellow plug point will expand the range.
