[Collins] "new" R388

[Jim Brannigan]

EB5AGV's WEB page is a good starting point.
http://www.jvgavila.com/r388.htm

Jim

> Here is my receiver description......
>
> No signal corps tag on the front, but there is a small faded white stamp
to
> the right of the tag location that looks like an eagle.
> Phones, break in switch (doesn't disable the receiver when thrown).
> Headphones plugged in do not disable the receiver, although looking at the
> schematic this appears to be normal. The stamp is reason enough not to
> repaint the front, unless those guys can refinish without destroying it.
The
> front panel isn't perfect, but thats okay.
>
> The dial appears to be somewhat stiff. The wrist gets tired after a while.
I
> assume all the gear train will need lubrication with white lithium grease.
I
> have read in places that the PTO shaft screw will need disassembly to be
> lubricated and I assume that this is the major culprit for dial stiffness.
>
> Dial runout/calibration. On the lower bands the calibrator is about 4 KC
too
> far to the left. On the higher bands the signal is within the bezel so you
> can adjust the zero. However, it appears that the dial runout is about 1
KC
> per 100 KC. So we're off about 5 KC at the band edges if you don't
> recalibrate every 100 KC. Is this amount adjustable via the various
> trimmers, etc., or will we need to do Bill Orr's mod?
>
> The radio will probably need to be fully calibrated. The trick I assume is
> to center the dial on each band and tweak until its dead center. I don't
> think this is described in the army manual.
>
> Also, and finally this time, can someone PLEASE resend that link for the
> posting that was just up about PTO dissassembly and lubrication. I would
> REALLY appreciate it greatly.
>
> The radio works great otherwise. My 10 year old daughter has named it
"Fred"
> and is learning how to use it. She is studying to get her tech license.
>
> Thanks bunches. This is one really cool radio.
>
> PS Should I install a muffin fan in this bud box to get some cross
> ventilation? It has side vents but its purely by convection that heat
moves
> out.
>
> Philip Neidlinger
> KA4KOE
>
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> http://www.collinsra.com