> Thats my story and Im sticking to it.
That's what I like...A man of positive convictions.....hi
73s de Jim
W5IFP
> -----Original Message-----
> From: Amps [mailto:amps-bounces@contesting.com]On Behalf Of Carl
> Sent: Saturday, October 27, 2012 8:29 AM
> To: Paul Kraemer; amps@contesting.com
> Subject: Re: [Amps] B&W 850A Repair
>
>
> Silver prices went up, plating thickness went down (-;
>
> And #8 wire has long been a standard at .1285. Maybe your NIST boys are
> using Chinese instruments.......
>
> Thats my story and Im sticking to it.
>
> Carl
> KM1H
>
>
> ----- Original Message -----
> From: "Paul Kraemer" <elespe@lisco.com>
> To: "Carl" <km1h@jeremy.mv.com>; <amps@contesting.com>
> Sent: Friday, October 26, 2012 8:57 PM
> Subject: Re: [Amps] B&W 850A Repair
>
>
> > And I measure it at 0.1245" to 0.1255"
> > Our calipers are maintained by a lab using NIST standards and
> they were
> > recently certified
> > Customer requirement---they pay for it---we enjoy the benefits
> > Potato potahto, call it an 1/8" down here in the stix
> > Paul K0UYA
> > ----- Original Message -----
> > From: "Carl" <km1h@jeremy.mv.com>
> > To: "Paul Kraemer" <elespe@lisco.com>; <amps@contesting.com>
> > Sent: Friday, October 26, 2012 7:04 PM
> > Subject: Re: [Amps] B&W 850A Repair
> >
> >
> >>I measure the wire at .1325 which equates to #8 wire with
> the plating.
> >>
> >> Carl
> >> KM1H
> >>
> >>
> >> ----- Original Message -----
> >> From: "Paul Kraemer" <elespe@lisco.com>
> >> To: "Gary H. Harmon, Jr." <gharmon@idworld.net>;
> <amps@contesting.com>
> >> Sent: Friday, October 26, 2012 6:57 PM
> >> Subject: Re: [Amps] B&W 850A Repair
> >>
> >>
> >>> Gary
> >>> No support except the back end.
> >>> Scaling "up" from a complete 851 (500w) the bars on the 851
> are 5/16"
> >>> wide with 1/8" material below the coil
> >>> Total thickness is the 1/8" plus wire diameter plus another 1/16".
> >>> The top is melted to anchor the turns
> >>> For the 850A that suggests that the bars need to be 3/8" wide by at
> >>> least 1/8" below the wire + the wire + another 1/6" (or
> more ) above the
> >>> turns.
> >>> I would suggest a minimum of 3/8" square bars---or even up to 1/2"
> >>> square since the wire diameter is a hefty 1/8"
> >>> Get some 3/8" or 1/2" stock from McMaster Carr and start
> notching with a
> >>> fine tooth band saw or jig (scroll) saw.
> >>> The notch spacing is linear over the approximate 3 1/4"
> length of the
> >>> coil
> >>> McMasterCarr doesn't list Lexan but this is similar
> >>> http://www.mcmaster.com/#polycarbonate-sheets/=jw6q79
> >>> If you can find actual Lexan it is best. Does not shatter or chip.
> >>> Extremely strong and easy to work. It is used in bulletproof glass
> >>> windows.
> >>> Have fun cutting all those notches! Clamp the bars together
> and do 4 at
> >>> once.
> >>> Paul K0UYA
> >>> ----- Original Message -----
> >>> From: "Gary H. Harmon, Jr." <gharmon@idworld.net>
> >>> To: <amps@contesting.com>
> >>> Sent: Friday, October 26, 2012 3:07 PM
> >>> Subject: [Amps] B&W 850A Repair
> >>>
> >>>
> >>>>I need to replace the 4 plastic coil supports on my 850A
> band switching
> >>>>coil
> >>>> assembly. I have no pieces to measure so I need to know the width,
> >>>> thickness and length of the four pieces. Is there some
> sort of support
> >>>> of
> >>>> the four pieces at the ends inside the coil or is the only
> fastener
> >>>> where
> >>>> they bolt to the L-shaped brackets connected to the front of the
> >>>> assembly?
> >>>> Any suggestions on how to fasten the coils turns to the strips?
> >>>>
> >>>>
> >>>>
> >>>> Vr,
> >>>>
> >>>>
> >>>>
> >>>> Gary H. Harmon, Jr. - K5JWK
> >>>>
> >>>> 6003 Archwood
> >>>>
> >>>> San Antonio, TX 78239-1504
> >>>>
> >>>> 210.657.1549h / 210.884.6926c
> >>>>
> >>>>
> >>>>
> >>>> "Retirement means every day is a Saturday except Sunday".
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>> _______________________________________________
> >>>> Amps mailing list
> >>>> Amps@contesting.com
> >>>> http://lists.contesting.com/mailman/listinfo/amps
> >>>
> >>> _______________________________________________
> >>> Amps mailing list
> >>> Amps@contesting.com
> >>> http://lists.contesting.com/mailman/listinfo/amps
> >>>
> >>>
> >>> -----
> >>> No virus found in this message.
> >>> Checked by AVG - www.avg.com
> >>> Version: 10.0.1427 / Virus Database: 2441/5355 - Release
> Date: 10/26/12
> >>>
> >>
> >
> >
> >
> > -----
> > No virus found in this message.
> > Checked by AVG - www.avg.com
> > Version: 10.0.1427 / Virus Database: 2441/5357 - Release
> Date: 10/27/12
> >
>
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