[Heathkit] SB-200

[Edward B Richards]

Better at 1% for metering resistors.

73, Ed Richards K6UUZ
Simi Valley, Ca 93065
Home of the Air Force 1 pavilion

On Wed, 26 Jul 2006 08:40:41 -0500 Robert & Linda McGraw K4TAX
<RMcGraw at Blomand.Net> writes:
> Let me correct a point.  The meter resistors are not shunts, they are 
> 
> multipliers and thus connected in series with the meter.
> 
> Typical of carbon resistors is to increase in value with age.  
> Measure them 
> and if out of tolerance by more than 5%, replace them.
> 
> 73
> Bob, K4TAX
> 
> 
> ----- Original Message ----- 
> From: "john" <johnmb at nc.rr.com>
> To: "Peter Markavage" <manualman at juno.com>; 
> <Heathkit at mailman.qth.net>
> Sent: Tuesday, July 25, 2006 6:59 PM
> Subject: Re: [Heathkit] SB-200
> 
> 
> > Yep, but not often off by THAT much. As others have said, check 
> the meter 
> > shunts.  If they're ok, replace the filter caps.
> >
> > John K5MO
> >
> >
> >
> > At 07:53 PM 7/25/2006, Peter Markavage wrote:
> >>Also, check the meter shunt resistors; I believe, without looking 
> in the
> >>book, there are 3 resistors in series for the HV meter shunt. If 
> any have
> >>changed value, meter reading will be off. As Dougles also says, 
> the panel
> >>meter is not that accurate.
> >>
> >>Pete, wa2cwa
> >>
> >>On Tue, 25 Jul 2006 19:36:43 EDT KB9GKC at aol.com writes:
> >> >
> >> > In a message dated 7/25/2006 6:25:55 P.M. Central Daylight 
> Time,
> >> > pgondos at hotmail.com writes:
> >> >
> >> > My  problem is I can only get 1900V on the meter when in HV
> >> > position. Manual  says 2400V. Any suggestions ? Thanks.
> >> >
> >> >
> >> > Hello,
> >> >
> >> >  The HV meter may not be accurate, the volt meter is not a lab
> >> > instrument
> >> > and could be +/- 10% off.  And the movement may have been  
> damaged
> >> > over the
> >> > years from being moved around.
> >> >
> >> > Apply drive to the amplifier and see if you get 500 watts or 
> so
> >> > output, if
> >> > so you know the tubes and power supply are in good shape.
> >> >
> >> > 73 and good luck,
> >> > Douglas
> >> > Heathkit SB-101A
> >> > SteppIR 3 element at 60 feet
> ______________________________________
> >>List Administrator: Duane Fischer, W8DBF
> >>** For Assistance: dfischer at usol.com **
> >>$$ See the vintage area on the HCI web site - http://www.w9wze.org 
> $$
> >>Heathkit mailing list
> >>Heathkit at mailman.qth.net
> >>http://mailman.qth.net/mailman/listinfo/heathkit
> >>
> >>
> >>--
> >>No virus found in this incoming message.
> >>Checked by AVG Free Edition.
> >>Version: 7.1.394 / Virus Database: 268.10.4/399 - Release Date: 
> 7/25/2006
> >
> >
> >
> > -- 
> > No virus found in this outgoing message.
> > Checked by AVG Free Edition.
> > Version: 7.1.394 / Virus Database: 268.10.4/399 - Release Date: 
> 7/25/2006
> >
> > _______________________________________________
> > List Administrator: Duane Fischer, W8DBF        ** For Assistance: 
> 
> > dfischer at usol.com **         $$ See the vintage area on the HCI 
> web site - 
> > http://www.w9wze.org $$ Heathkit mailing list
> > Heathkit at mailman.qth.net
> > http://mailman.qth.net/mailman/listinfo/heathkit 
> 
> 
> _______________________________________________
> List Administrator: Duane Fischer, W8DBF        
> ** For Assistance: dfischer at usol.com **         
> $$ See the vintage area on the HCI web site - http://www.w9wze.org 
> $$ 
> Heathkit mailing list
> Heathkit at mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/heathkit
> 
>