[Hallicrafters] More S-40A Material

[Glen Zook]

It depends on who is doing this "rebuild" using new
type components (you notice that I did not say
"restoration").  If you are doing your own work, then
you most certainly have the option of replacing only
those components that are presently causing problems.

However, if you are having to "pay" someone to replace
the components, then it is definitely "cost effective"
to replace all of the paper capacitors and other known
to go bad on a regular basis components.  This is
because virtually everyone that I know in the service
business has a minimum charge (usually one hour) and
you can replace a "fair" number of capacitors, etc.,
in one hour.  

Even if it takes longer, since a lot of the equipment
is shipped to the service facility (at a definite
price), it is much cheaper to replace all of the
potentially defective components at one time since the
cost of material is normally the least expense
involved.  If the non-replaced components fail fairly
soon, then you definitely have considerable expense in
shipping and labor in addition to the original cost.

If you are actually restoring a set (taking it back to
its ORIGINAL configuration), then you definitely want
to keep as many of the original components as
possible, while replacing the defective ones with
original type components as well.

It IS "standard" procedure to replace all of the paper
capacitors in the Collins 75A2, 75A3, and 75A4
receivers, and quite a number of people like to
replace the "bathtub" type of capacitors in the 75A1
as well (up to 41 capacitors to be replaced in the
75A1!) whether or not they personally are doing the
work.  The same thing for the various Hallicrafters
and other boat anchor receivers when they are having
to pay for the work.

It really depends on what you are trying to achieve. 
If you work on your own equipment, and are really only
interested in how it works (not how it looks), then
you can, in good conscience, do whatever you want to
do with your equipment!  If you are paying to get the
work done, then I advise getting as much work for the
money that you can.

Glen, K9STH




--- manualman at juno.com wrote:

> You're not alone Randy; I guess we need to get a
> copy of this "standard
> restoration procedure" to comply to the "standard"
> procedures. 

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