[R-390] Incomplete IF module

[Glenn Little WB4UIV]

Tim and the group,

 From what I can see, this is a module that was never completed. The 
filters appear to have been installed and removed. T503 was never installed 
( I mentioned T503 as installed earlier, this is Z503). J512, R519 and R523 
were never installed. The standoff insulators are installed, but have never 
had components soldered to them.

There are no marks on the chassis to indicate that the missing parts were 
ever installed.

73
Glenn
WB4UIV


At 01:55 PM 11/27/05, you wrote:
>Glenn Little WB4UIV <glennmaillist at bellsouth.net> wrote:
>
> > Some years ago I bought an incomplete IF module from a surplus house. In
> > cleaning this weekend, I uncovered it.
> >
> > The module is marked
> > SM-C-343621
> > I.F. FINAL ASS'Y
> > FR-11-C22-C-4-26418(E)
> > SER. NO. 0294
> >
> > The module has the tube sockets, RF connectors, T5-1-T503, Z501, C506,
> > TB501 and some small parts mounted. Very little has solder on it.
> >
> > Is this a rare find?
> >
> > Why would it have the serial number assigned before completion?
> >
> > Thanks
> > 73
> > Glenn
> > WB4UIV
> >
>
>Is it possible this was not a "half-built" module but a "built,
>torn down for spare parts, and the begun to be rebuilt" module?
>
>For reasons that I do not fully comprehend I've seen lots of
>stripped-down IF modules over the years, almost always missing
>the BFO and often missing some other parts.
>
>Tim.