Hello All:
I think that I have the right group to ask this question:
Being new to tube amps, can someone please tell me the right procedure to
tune an AL-80B? I am not new to ham radio, just the amp. I have it on a
240VAC line. I have it connectes via ALC and send cables to my 756Pro III.
Should I use the rigs auto tuner on 15M when called for? I have a Force 12
C3SS qand an 40M wire dipole on a switch.
I need the initial setup and band to band tweaking procedure. I used the
procedure that comes with the amp, but I do not see the results (1KW)
anywhere but around the 14,250 initial setting.
Please help. I made it throughh CWSSB but I think I could do better.
73
Dave K3FT
On 10/28/07, D Pipes <dpipes@earthlink.net> wrote:
>
> When my tube broke on the 811H I also lost a grid resistor might check
> that
> before you kill a new tube. And for what it is worth I have replaced with
> a
> set of RF Parts Taylors seem to work great zero problems now that I tune
> it
> right <g>
>
> > [Original Message]
> > From: TROY D SINGLETON-N5ARK <N5ARK@COMCAST.NET>
> > To: Scott Manthe <scott.manthe@gmail.com>; <Amps@contesting.com>
> > Date: 10/28/2007 5:12:04 PM
> > Subject: Re: [Amps] al-811 Blowing fuses Like Crazy
> >
> > Yeah I was looking at them and they did not look bad and was cheaper
> than
> > anywhere else I looked. I was just not sure about Penta being that I
> have
> > not heard a lot about the company. But I also read that most of the
> tubes
> > are made at the same facotry in China but marketed under different names
> > Like RF Parts..
> >
> > I think I am going to order a set of the PENTAS and if there is some
> sort
> of
> > other problem and one blows at least I wont be out a lot of money.
> >
> > Thanks, Troy N5ARK
> >
> > ----- Original Message -----
> > From: "Scott Manthe" <scott.manthe@gmail.com>
> > To: "TROY D SINGLETON-N5ARK" <N5ARK@COMCAST.NET>
> > Sent: Sunday, October 28, 2007 4:17 PM
> > Subject: Re: [Amps] al-811 Blowing fuses Like Crazy
> >
> >
> > > Troy,
> > > Actually, I know I said eBay sucks, but the guy on eBay that sells
> Penta
> > > 811As is probably OK. RF parts seems pretty expensive compared to the
> > > Penta guy.I think he's a ham, too. I think you can get a matched set
> of
> 4
> > > for 69.00.
> > >
> > > I'm glad you found the problem.
> > >
> > > 73,
> > > Scott, N9AA
> > >
> > > TROY D SINGLETON-N5ARK wrote:
> > >> Well I got a broken tube. The center tube i am able to rotate about 5
> > >> degrees with it still in the holes...Where is the best place to bu a
> set
> > >> of these tubes?
> > >>
> > >> Troy
> > >> ----- Original Message -----
> > >> From: "Scott Manthe" <scott.manthe@gmail.com>
> > >> To: "TROY D SINGLETON-N5ARK" <N5ARK@COMCAST.NET>
> > >> Sent: Friday, October 26, 2007 1:31 PM
> > >> Subject: Re: [Amps] al-811 Blowing fuses Like Crazy
> > >>
> > >>
> > >>
> > >>> eBay generally sucks. If the guy told you it was working, tell him
> you
> > >>> want your money back.
> > >>>
> > >>> It sounds like you've either got a short in the tubes, or one of the
> > >>> caps/resistors is shorted. Tom Rauch, who used to design amps for
> > >>> Ameritron, or one of the other guys who know more than me, can tell
> you
> > >>> a little more about exactly what the trouble is.
> > >>>
> > >>> If I remember correctly, this shouldn't be too difficult a repair.
> > >>>
> > >>> 73,
> > >>> Scott, N9AA
> > >>>
> > >>> TROY D SINGLETON-N5ARK wrote:
> > >>>
> > >>>> Greetings All,
> > >>>>
> > >>>> I bought a AL-811 on ebay. Nice looking Amp. Well it arrived in the
> > >>>> mail and I pluged it in and the first thing happens is fuses go to
> > >>>> blowing. (He sent the amp with the tubes still in place ;() ..I
> open
> > >>>> the cover and look at the tubes and connectors again and everything
> > >>>> seems to be in place. A little up so I pushed the tues ack down and
> put
> > >>>> new fuses in. Still blows them everytime within about a second. I
> look
> > >>>> over the amp and I have never worked on them before. There is a
> little
> > >>>> green wire at the back of the amp that has come un-soldiered and is
> > >>>> free in the air as in not touching anything...seems the amp is
> arcing
> > >>>> right under the middle tue somewhere. Can anyone lead me in the
> right
> > >>>> direction.
> > >>>>
> > >>>> Not getting off to a good start on amps. this is the 2nd bad one I
> have
> > >>>> got....
> > >>>>
> > >>>> 73's
> > >>>> N5ARK
> > >>>>
> > >>>> _______________________________________________
> > >>>> Amps mailing list
> > >>>> Amps@contesting.com
> > >>>> http://lists.contesting.com/mailman/listinfo/amps
> > >>>>
> > >>>>
> > >>>>
> > >>> --
> > >>> "If someone has a gun and is trying to kill you, it would be
> reasonable
> > >>> to shoot back with your own gun."
> > >>>
> > >>> The Dalai Lama, (May 15, 2001, The Seattle Times) speaking at the
> > >>> "Educating Heart Summit" in Portland, Oregon, when asked by a girl
> how
> > >>> to react when a shooter takes aim at a classmate.
> > >>>
> > >>>
> > >>>
> > >>
> > >>
> > >> _______________________________________________
> > >> Amps mailing list
> > >> Amps@contesting.com
> > >> http://lists.contesting.com/mailman/listinfo/amps
> > >>
> > >>
> > >
> > > --
> > > "If someone has a gun and is trying to kill you, it would be
> reasonable
> to
> > > shoot back with your own gun."
> > >
> > > The Dalai Lama, (May 15, 2001, The Seattle Times) speaking at the
> > > "Educating Heart Summit" in Portland, Oregon, when asked by a girl how
> to
> > > react when a shooter takes aim at a classmate.
> > >
> > >
> >
> >
> > _______________________________________________
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> > http://lists.contesting.com/mailman/listinfo/amps
> >
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>
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