[Hallicrafters] New resistor sizes

[Orlan]

Hi gang,

I usually don't get into these discussions but when I saw the "Lowrey Organ" 
I had to say
I spent 30 years servicing the Lowrey here in the KC area until my 
cardiologist told me to
hang it up in 1992.  As a matter of fact, Tom's mother had a Lowrey Organ 
which I serviced.
I am glad Doug hit the "Reply to all" button or I would probably not be 
writing this.

HNY 2 all, Orlan w0oyh - ARRL Ks Ast. SM



----- Original Message ----- 
From: <Troglodite at aol.com>
To: <daileyservices at qwest.net>; <hallicrafters at mailman.qth.net>; 
<HallicraftersRadios at yahoogroups.com>
Cc: <orlan at everestkc.net>; <1editor2 at indra.com>; <k0oj at msn.com>; 
<larryw0hxs at yahoo.com>
Sent: Wednesday, January 07, 2009 11:10 AM
Subject: Re: [Hallicrafters] New resistor sizes


> We got the same answer when we questioned the metal film 1/4 watt 
> resistors
> we ordered, and they looked the same as the 1/8 watt parts. However, I can
> tell  you that we tested them extensively and have had no problems. The 
> heat
> dissipated is the same, so the smaller physical size gets a tiny bit 
> hotter, but
> is no problem placed directly against the circuit board. We have since
> changed  the spacing on many of our boards since the new 1/4 watt parts 
> are more
> compact.  We've used thousands with no problems. We still make a lot of 
> hand
> stuffed  through hole boards.
>
> Doug Moore
>
> (Chief Engineer - Lowrey Organ Co.)
>
>
> In a message dated 1/7/2009 10:37:17 A.M. Central Standard Time,
> daileyservices at qwest.net writes:
>
> Recently, I ordered some replacement resistors from Mouser, and noticed 
> that
> the 1w devices were the size of what HAD been 1/4w, and 2w sizes were the
> same size of what HAD BEEN the 1/2w.  In correspondence with the Vischay 
> rep,
> this is what came out of their TechSupp folks.
>
>
> Carbon  Composition Resistors (which are going obsolete) did not have a
> ceramic core and  were not as efficient at dissipating heat into the 
> leads. By
> using metal film on  a ceramic core more power can be applied to a smaller 
> part.
> By the same token  the large resistive area of the carbon composition 
> resistor
> allowed for improved  pulse voltage handling characteristics than the 
> ceramic
> core technology.
>
> **************New year...new news.  Be the first to know what is making
> headlines. (http://www.aol.com/?ncid=emlcntaolcom00000026)


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