[Heathkit] Dumb speaker question

[Bob Macklin]

Has anyone ever tried to replace resistors and capacitors on the SB-10X or 
HW-10X that are on th PCBs that are over the bandswitch.

It can get messy any way you do it!

Bob Macklin
K5MYJ
Seattle, Wa.
"Real Radios Glow In The Dark"
----- Original Message ----- 
From: "Wayne Harrah" <pilotguy1050 at yahoo.com>
To: <Heathkit at mailman.qth.net>
Sent: Sunday, February 28, 2010 11:53 AM
Subject: Re: [Heathkit] Dumb speaker question


> <snip>
>
> An SB-310 or an SB-102 "SHOULD" receive as well as an FT-101 or a
> TS-520.
> An alignment would be beneficial, HOWEVER, you'll most likely also find
> resistors and some capacitors have gone significantly out of spec.
> It will be a dual effort.  I'd suggest first checking component values,
> especially the resistors, before performing an alignment.
>
> <endsnip>
>
> This will sound like its right out of a "Mr. Obvious" script, but need a
> clarification on philosophy in restoring Bas... I learned a long time
> ago from my Elmer that in checking resistances, you have to isolate the
> device being measured from the rest of the circuit... which means there
> is likely a lot of invasive lead-cutting and re-soldering to restore
> connections, is there not?  If so, it seems to me that just going ahead
> and replacing each component might be the smart thing to do.
>
> What is the general concensus on that endeavor?  Is that a wise move
> once one decides to go thru the radio, to just replace every resistor
> and cap? Seems like a daunting job, but at the same time your reply
> makes it sound worthwhile.
>
> Thanks.
> Wayne, ke0ms
>
>
>
>
> ______________________________________________________________
> Heathkit mailing list
> Home: http://mailman.qth.net/mailman/listinfo/heathkit
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Heathkit at mailman.qth.net
>
> List Administrator: Duane Fischer, W8DBF
> ** For Assistance: dfischer at usol.com **
>
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>