I also have a bad slider for modulation, in my case it's the AM.
Is there anyone in the group that would undertake doing a 3-D
printer version?? There has to be hundreds of 8640B's out there
that need new sliders.
Phil, KD6RM
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I just repaired the plastic switch for modulation on my
HP8640B by fabricating a brass part that screws to the top
of the slider.? I wrote a report but don't know how to
attach a pdf to this group.? I am new to this group.? The
260 brass part was? 0.75" wide, half hard? .? I used three
2x56 screws 5/32 long so they do not pass through the
plastic slider.? Several years ago the slider failed and i
made the brass part.? The last month the other one failed
so I had to replace it also.? The brass part is bent in
two places and is triangular shape to cover the slider and
narrowed to a width of about 0.15" to stick out the
panel.? The bends need to be sharp so as not to rub on the
front panel.
Houston Brown
