Manuals

[Randy Kaeding]

Its true. Manuals may be dashed up for any number of reasons (I took care of
many revisions in addition to writing new product manuals), and the part
number has absolutely nothing to do with dates.

Where you have to be careful though is to understand exactly what changed
from one particular level to the next. For example, perhaps a part
(transistor, IC, etc.) may have become no longer available, and a different
part had to be used. This may also have caused other surrounding component
values to be changed. In some cases, a transistor or IC from one
manuafacturer may not work as the same part from another manufacturer, even
though they were the same basic type number. Just changing parts to bring a
particular product up to the latest version, may cause more problems than
you ever dreamed of. Therefore, be sure you completely understand went on
before you start making wholesale "updates."

Randy, K8TMK
"One of the Hams (still) at Heathkit."


-----Original Message-----
From: Heathkit Owners and Collectors List
[mailto:HEATH at LISTSERV.TEMPE.GOV]On Behalf Of Peter A Markavage
Sent: Monday, July 28, 2003 12:37 PM
To: HEATH at LISTSERV.TEMPE.GOV
Subject: Re: Manuals


Good idea except for the following thought. If you have a piece of
equipment that was built early in its life cycle, which may be hard to
determine, and, say it had a 5 year life span on the market, and there
were 11 revisions to the manual, it would be difficult to tell how the
revisions would impact this piece of equipment. The revisions (last two
digit dash numbers) could be either manual corrections, printer errors,
part changes, circuit changes or some combination of all of them. So
getting the highest number you can find, when it's difficult to know that
the highest number might even be, or what changes, corrections, etc.
where introduced throughout its life cycle and how it might impact the
piece of equipment you have, could end you up in an endless sea of
frustration.

Pete, WA2CWA


On Sat, 26 Jul 2003 19:28:53 -0700 The Heathkit Junkie <w0qni at JUNO.COM>
writes:
> To the fellows of Green:
>
> There were many revisions of manuals all over the place.
>
> How to tell them is the dash after the number of the manual.
>
> For example, the SB-102 manual is 595-1056. That was the first
> printing.
> I have one SB-102 manual which has 595-1058-11 or the 11th revision
> of
> the manual.
>
> I do remember one manual had a 16th revision, but I can not remember
> what
> it was.
>
> Get the highest number you can find!!
>
>     (o)  (o)
> 00ooo---ooo00
>       ~~~~~~
> 73 - BILL - WØQNI
> "THE HEATHKIT JUNKIE"
>
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