[R-390] The saga cont pt 6 pleasant surprise
Cecil Acuff
chacuff at cableone.net
Sat Sep 11 17:11:58 EDT 2010
Yup..they all need to go.
Pull a couple and check the leakage at rated voltage. I haven't found a
good one yet....still looking though.
Cecil
K5DL
----- Original Message -----
From: "Craig C Heaton" <wd8kdg at att.net>
To: <ka9egw at britewerkz.com>; <r-390 at mailman.qth.net>
Sent: Saturday, September 11, 2010 4:04 PM
Subject: Re: [R-390] The saga cont pt 6 pleasant surprise
> BBOD's????
>
>
> 73's
> Craig
>
> -----Original Message-----
> From: r-390-bounces at mailman.qth.net [mailto:r-390-bounces at mailman.qth.net]
> On Behalf Of ka9egw at britewerkz.com
> Sent: Saturday, September 11, 2010 1:25 PM
> To: r-390 at mailman.qth.net
> Subject: [R-390] The saga cont pt 6 pleasant surprise
>
> So after pulling the IF deck and looking at C553...it's already a 630V
> part,
> so I figured I'd button her back up...but while I was in there I took a
> look
> at the two resistors in question, R546 & R547; I sez "they're easy to get
> to, what the heck" and added the 2 diodes in for the rest of the SSB AGC
> mod.
>
> And the band went out. But on the couple SSB stations I can find, couple
> guys working the Ohio Parks On The Air contest around 7205, all is good
> indeed. I'll see how she does after the sun goes around and 75 opens
> up...
>
> Let's see, I did the whole geartrain cleaning and alignment, did the
> Rippel
> audio mod, replaced the self-destructing 8uF cap on the audio board,
> checked
> the filter-killer cap C553, added the 47pF and the 2 diodes for the SSB
> mod,
> verified the presence of all 8 mechanical filter trimmers...I'm thinking a
> full alignment is about all that's left.
>
> Anyone else see anything else critical that I'm overlooking?
>
> 73 de KA9EGW
>
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