SB-401

[nv4t]

I'll beton the xtal osc.coil adjustment--been there,done that!

NV4T
----- Original Message -----
From: "Mark Graalman WB8JKR" <wb8jkr at JUNO.COM>
To: <HEATH at LISTSERV.TEMPE.GOV>
Sent: Monday, October 11, 2004 10:17 AM
Subject: Re: SB-401


> No, the relay wouldn't do that. I'd look at the bandswitch
> and the HFO oscillator, but I'd bet on the bandswitch.
>
> Mark  WB8JKR
>
> On Tue, 12 Oct 2004 07:59:34 -0400 Ray Friess <rayfri at HIGHSTREAM.NET>
> writes:
> > Mark:
> > Wonder if that would apply to my situation too?    I have power out
> > on
> > 80 and 40... but
> > zero... zilch ... on 15 through 10.    Glen suggested the driver
> > tube
> > .....   Wondering if the relay
> > could cause that too.    Doesnt seem logical... if it would show
> > power
> > on 80 and 40 the relay
> > wouldnt be the problem would it?
> > Ray  wa7itz
> >
> > Mark Graalman WB8JKR wrote:
> >
> > >  Terry,
> > >
> > > A lack of idle current would have nothing to do with
> > >the alignment, neither would intermittent operation
> > >unless the HFO was set incorrectly. I'd take another
> > >look at the relay and MAKE SURE the contacts are
> > >mating properly. I'd also check the bias set pot and
> > >make sure there isn't an intermittent there that would
> > >occasionally place the unit in a cutoff state.
> > >
> > >73,  Mark  WB8JKR
> > >
> > >
> > >On Sat, 9 Oct 2004 21:00:59 EDT Terry England <W9cau at AOL.COM>
> > writes:
> > >
> > >
> > >>Hello, i've got a SB-401 that transmits sometimes and than it
> > quits
> > >>when  you
> > >>turn it off or change bands. But sometimes it will work after you
> > >>turn it
> > >>off or change bands. I have cleaned the switches and relays and it
> > >>still does
> > >>the same thing. If i switch the mode switch back and forth
> > sometimes
> > >>it will
> > >>start working again, and some times not. Also there is no ideling
> > >>current when
> > >>this stops working also. When it works it works fine and everyone
> > >>says it
> > >>sounds  great. My next step i think is a re-alinment of the
> > >>transmitter.To i have
> > >> noticed that the output is down a little and other times it is up
> > a
> > >>little.
> > >>It  shows 60w sometimes than 75w and other times 95w. Any other
> > >>ideas? I am
> > >>useing  this 401 with a SB-303 as far as i know these two have
> > been
> > >>used
> > >>together since  they were built. Thank you all for reading. Terry
> > >>w9cau
> > >>
> > >>
> > >
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