[ARC5] ARC-5 Screws

[J. Forster]

Either kind of frinish seems easy enough.

http://www.epi.com/

What would be really useful is a list of the various screw lengths in what
quantity would be needed.

-John

===============


> Ken wrote:
>
>> What this means is that any part that must be removed for routine
>> service is held on with nickle-plate (I thought that plating was
>> cadmium) screws, whereas those parts that are not normally removed
>> are held with black screws.
>
> That seems to be the logic, which makes black vs. plated screw use an
> intentional distinction built in to these favorite sets of ours and not
> just an arbitrary cosmetic feature.
>
> It also means that the plated screws are the ones that are far more
> likely to be missing.  If one had to choose black or plated finish,
> the plated finish would be much more useful and likely much easier
> to obtain.
>
> I don't know what the plating is, nor am I sure what process was used
> to apply the black finish.
>
>> ...I have found that the black screws MUST be loosened a bit in order
>> to get the tube-cover off without bending it. Perhaps those were simply
>> over-tightened by a later user...
>
> Fair enough.  However, I removed the tube covers from three receivers
> just a few days ago that likely have been unmolested for 55 to 60 years
> and had no real resistance to sliding the cover to the rear once the eight
> plated screws were removed.  One of the sets was a BC-453-B that had been
> coated in a thick yellow MFP film, yet still gave little resistance to
> cover removal.
>
>>>  What doesn't make sense is why so many of these damned little screws
>>>  were used at all.
>>
>> Well, **I** think they are pretty in that use! Makes it look somewhat
>> like
>> a riveted boiler on a steam engine or the rivets in an airplane. :-)
>
> They're pretty, but I can't imagine the radio techs servicing these units
> looked forward to opening and closing them up.  One could imagine a
> transmitter being junked just because it was more trouble to mess with
> the 19 screws holding the tube cover on than it was worth.  What could
> have been A.R.C.'s motivation, especially with a war obviously on the way?
>
>>> I'm not the Mike to whom you refer, but I'll jump in anyway. :-)
>>
>> Actually, yes you WERE the "Mike" to whom I was referring!
>
> I'm a small-time patzer compared to all the knowledgeable people on these
> lists.  In the 15 years I've subscribed to this and similar lists, I have
> learned many many times over what I knew before then, even though I'd been
> interested since 1964.  I am very thankful to all who contribute to the
> discussions.  Some members have stunningly good websites or offer other
> sources of information as well.  It's all better than "Electric Radio",
> and that's pretty good!
>
> 73,
> Mike / KK5F
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