[R-390] Trim Caps on Mechanical Filters
Bruce Hagen
b_hagen at sbcglobal.net
Sat Dec 31 11:46:25 EST 2005
Anything is possible as long as we do not have to eat Lutefisk.
Bruce Hagen
Norwegian
-----Original Message-----
From: r-390-bounces at mailman.qth.net [mailto:r-390-bounces at mailman.qth.net]On
Behalf Of Cecil Acuff
Sent: Saturday, December 31, 2005 10:22 AM
To: R-390 at mailman.qth.net; Flowertime01 at wmconnect.com; Tim Shoppa
Subject: Re: [R-390] Trim Caps on Mechanical Filters
Everything should be questioned.....that's how we learn. There has been
things learned about the R-390A from guys that never went through the
military schools that have proven to be valuable. I doubt the military ever
taught gear train teardown and reassembly. I'm not sure it was even done at
Depot level in most cases.
Also there is no one, all knowing, R-390A guru on this list...a lot of
really helpful guys...and many really motivated guys to further the art but
any of us can be wrong about something at any moment due to many factors
such as communications breakdowns, (imagine that) our lack of understanding
in certain areas...that we think we understand, intolerance.....
Questions are good....
This list has displayed a level of self management over the
years....manifested in several ways....one of which I hope never occurs
again and that was, lack of participation.
We have a good group right now, though with a lot of new faces in the last
two or so years. Handle the groups heritage carefully....take advice from
some of the groups elders in relation to the heritage seriously (the
original Y2K manual team for example). Lets not go back to where we have
pulled ourselves up from in the last 5 or so years due to intolerance,
indifference, arrogance....etc.
Now back to our regularly scheduled program.....
Happy New Year to all!
Cecil...
----- Original Message -----
From: "Tim Shoppa" <shoppa_r390a at trailing-edge.com>
To: <R-390 at mailman.qth.net>; <Flowertime01 at wmconnect.com>
Sent: Friday, December 30, 2005 8:04 PM
Subject: Re: [R-390] Trim Caps on Mechanical Filters
> Flowertime01 at wmconnect.com wrote:
>> OK so now you have looked under the two different types of IF decks and
>> find
>> ample space to place four trimmer caps.
>>
>> Before the end of 2006 as a new year resolution please provide the R390
>> reflector here a very concise write up equal to a field modification
>> procedure.
>> Exactly detail how to modify the non cap chassis to a cap chassis. Please
>> provide
>> a detail list of parts. Please provide mechanical drawings such that the
>> mechanical mounting parts can be fabricated from the drawing to provide
>> some of
>> the parts to make up the complete parts kit. Please include in the field
>> kit
>> installation, a template for drilling the side of the receiver frame. You
>> get the
>> parts list and detailed instructions and I know we can find the parts to
>> do
>> kits.
>
>> Just because one can make the change should we make the change?
>
> Wow, Roger, didn't mean to tick you off.
>
> I enjoy questions that are easily answered by looking under the covers,
> poking around with ohmmeters and voltmeters and signal generators,
> and comparing/contrasting small technical details.
>
> So if you say "it wasn't done for reason X", I read what you write
> with enough interest to go look and see reason X for myself. Don't
> take that as a mistrust of your facts, but take it as me being
> interested in what you write about.
>
> If I misinterpret your intended-to-be-factually-incorrect-for-humorous-
> intent statements as being actual mistakes, I apologize.
>
> I do seem to have rubbed you the wrong way a couple times in the past
> couple of weeks, putting me in the "bad guy" column way more than
> anyone else on this list. Who knows, maybe I'll get kicked off the
> list the next time I look under the covers of my R-390A instead
> of trusting the word of a respected poster.
>
> Tim.
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