Well, looks like I brought up a popular topic. Thats a good thing! I would
suggest a repository of information, or simply said, a place where any of us
can send information or links such that some Drake loving volunteer can compile
the information and check for accuracy. This should be someone who has lots
of experience with the 7 series. I think I have an idea, and will contact
that person separately so as not to put him on the spot on the list.
Until then, I'll likely need some help from you guys as I progress. And you'll
here me more often on Sunday afternoons as well !!
Thanks, David
----- Original Message -----
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Thursday, March 06, 2008 11:32 AM
Subject: Re: [drakelist] re TR7 PTO/troubleshooting in general
I've brought up this idea several times to various groups, including post
Drake Forum discussions at Hamvention. Many of us have valuable experiences
that, taken as a whole, represent what might be considered as "how the experts
fault isolate". One of the key elements in fault isolation is knowing the
probabilities of various failures from the symptoms. For example, the service
manuals don't tell you, for a given symptom(s), what the first most likely
cause is, what the second most likely cause is, and so forth. The expert
service technician knows this based upon experience, you know, that element
that makes one "over qualified" and thus unable to perform (not sure I
understand that concept but the job interviewers do). Such an undertaking can
be quite large and would be the labor of love. I encourage the pursuit of such
an endeavor.
Along with the above, of interest might be "tips and tricks", those things
the experts use to make the job easier. For example, I have a process that I
use when rebuilding/upgrading power supplies for the L4B/L7 linears. Having
the parts on hand and a workable process speeds things up and keeps costs down.
The result, your Drakes are returned to service sooner, and this means more
fun sooner...
-----Original Message-----
From: David & Chris Drake <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Sent: Thu, 6 Mar 2008 11:01 am
Subject: Re: [drakelist] re TR7 PTO/troubleshooting in general
To the list,
Has anyone ever compiled a troubleshooting doc for the TR7?? I know there
are a lot of bits and pieces out there and have downloaded and printed many of
them for my files. The service manual is also imperative, as well as extender
cards. This would be a good thing for us Drake lovers to have a TR7 specific
guide. Particularly since these radios are now getting some age on them and
components harder to find. I just bought my second TR7 in non-working
condition and will begin restoration soon, so this is up front on my mind.
Any comments would be welcome. Maybe Ron Baker could expand on his excellent
"inside the TR7" article on his website. Or all of us could contribute info
and experiences to someone else who could compile and document?? It could then
be posted on Ron's site for all to access. Or the more industrious could print
a book or CD and offer for a fair price.
As an example, I have a copy of the Swan Compendium, without which, restoring
a swan is much more difficult. Common problems and common solutions. I think
it was $25 back when it was available.
Another example is the video that was produced some time back for the KWM2.!!
Thanks,
David Drake
Wd9cmd,
In SUNNY southern Indiana!
----- Original Message -----
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Thursday, March 06, 2008 10:06 AM
Subject: Re: [drakelist] re TR7 PTO
[EMAIL PROTECTED] writes:
"Lorne Barber" said:
> First the TR7 .....friction ?
Then Joe said
Someone on the list may have more specific information as to after what
serial number the mod was no longer required or instructions for doing it
in
the field. Joe, K9HDE
Hi, I believe you will find the information you describe at www.wb4hfn.com
However that information was for the 4 series if I recall correctly.
You can google for "Drake PTO friction" and it comes up with that sight.
If desired I have the ground strap information and pics on my computer and can
send it as an attachment to an individual.
Carl WD8NHK
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