[Boatanchors] BA Resistors

[jeremy-ca]

But then they will jusb absorb moisture all over again Todd.

I usually toss anything by IRC, and others get placed in whatever standard 
value cabinet drawer they happen to fall into. Ive several thousand NOS 
carbons and every now and then I do a bulk testing and sorting.

Since this is a discussion that comes up constantly on several forums I 
measured the resistors, a few months ago, that I used in a S-20R I rebuilt 
about 10 years ago. The results were reported at the time. Altho many of the 
painted values are incorrect they are still well within 10% of what the 
parts list calls for. And, yes I included the info with the manual so I and 
others dont get confused in the future.

Carl
KM1H

----- Original Message ----- 
From: "Todd, KA1KAQ" <ka1kaq at gmail.com>
To: "JT Croteau" <jt.n1ese at gmail.com>
Cc: <boatanchors at mailman.qth.net>
Sent: Monday, February 04, 2008 10:46 AM
Subject: Re: [Boatanchors] BA Resistors


> On Feb 3, 2008 7:45 PM, JT Croteau <jt.n1ese at gmail.com> wrote:
>> I am salvaging some old, truly basket case, tube equipment for parts
>> to be used in some of my home brew AM projects and I'm wondering if I
>> should be keeping any of the carbon comp resistors?
>
> One thing to keep in mind even with NOS carbon comp resistors is that
> they tend to absorb moisture over time, which alters their value
> somewhat. Bake them in an oven for a bit, then measure them. That
> should give you a good idea which resistors are worth bothering with.
> Other than high-wattage examples, they're probably not worth bothering
> with if used (in my opinion) unless you like changing components.
>
> ~ Todd,  KA1KAQ
> _______________________________________________
>