[Boatanchors] Re: Boatanchors Digest, Vol 40, Issue 16
J.D. Mac Aulay, WQ8U
jmac6235 at yahoo.com
Sat May 12 22:28:26 EDT 2007
I got a Ten-Tec Jupiter with the intention of exploring the "modern" radio world. Very nice little package, seems to work every time I turn it on - something I am not used to experiencing.
Strange box though, it wants to do my keying for me on CW and select the mode for me in each band.
Fortunately, I have found its real value as instrumentation for my BA collection work. With the variable power output , 150 Cy digital filter, spectrum scan and digital read out, it is a really useful piece of test equipment for aligning and testing BA gear.
I have used it for QSOs occasionally but it doesn't have the fun of an HRO-50 and Viking II.
I just downloaded the latest software configuration from the mother ship in TN and found that the Jupiter now has an AM transmit mode - 25 watts carrier limit - a step forward but I am not sure that is meaningful in today's world.
So there is really a place for rice boxes, even if they are made in Tennessee - maybe they are Gritsboxes (Grits being a similar dietary staple here in the South.)
73
Mac
WQ8U
Hillsborough, NC
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When replying, please edit your Subject line so it is more specific
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Today's Topics:
1. 4 or 5 color band carbon resistors (Yong Surk Lee/HL1FB)
2. Re: 4 or 5 color band carbon resistors (Gary)
3. Re: 4 or 5 color band carbon resistors (Gary)
4. 4 or 5 color band carbon resistors (James Duffer)
5. Re: Frequency Counter (John J. McDonough)
6. Re: Frequency Counter (John J. McDonough)
7. Re: Frequency Counter (Revcom Electronics)
8. Re: Frequency Counter (Rodger)
9. Re: Frequency Counter (J Forster)
10. For Sale (James M. Walker)
----------------------------------------------------------------------
Message: 1
Date: Sat, 12 May 2007 17:30:34 +0900 (KST)
From: Yong Surk Lee/HL1FB
Subject: [Boatanchors] 4 or 5 color band carbon resistors
To: boatanchors at mailman.qth.net
Message-ID: <988428806.1178958634524.JavaMail.root at mail>
Content-Type: text/plain; charset=EUC-KR
Hello
I have a lot of 1/2 watt old carbon resistors. Some of them has 4 color bands
and some has 5 color bands. I know the 4th color band is the tolerence.
what does the 5th one represent? I have an old tube radio made in 1960s. It uses
4 band carbon resistors. What year did the 5 band ones introduced?
YSL
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------------------------------
Message: 2
Date: Sat, 12 May 2007 05:28:59 -0400
From: "Gary"
Subject: Re: [Boatanchors] 4 or 5 color band carbon resistors
To: "Yong Surk Lee/HL1FB" ,
Message-ID: <007d01c79477$f8b24440$0201a8c0 at computer>
Content-Type: text/plain; charset="ks_c_5601-1987"
That's the "TOLERANCE" band.
Gary...WZ1M
----- Original Message -----
From: "Yong Surk Lee/HL1FB"
To:
Sent: Saturday, May 12, 2007 4:30 AM
Subject: [Boatanchors] 4 or 5 color band carbon resistors
> Hello
> I have a lot of 1/2 watt old carbon resistors. Some of them has 4 color
bands
> and some has 5 color bands. I know the 4th color band is the tolerence.
> what does the 5th one represent? I have an old tube radio made in 1960s.
It uses
> 4 band carbon resistors. What year did the 5 band ones introduced?
> YSL
>
>
> _______________________________________________
> Boatanchors mailing list
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> ** List Administrator - Duane Fischer, W8DBF/W9WZE **
> ** For Assistance: dfischer at usol.com **
> $$ For vintage radio info, see the HCI web site $$
> http://www.w9wze.org
>
>
>
>
>
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> ** List Administrator - Duane Fischer, W8DBF/W9WZE **
> ** For Assistance: dfischer at usol.com **
> $$ For vintage radio info, see the HCI web site $$
> http://www.w9wze.org
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------------------------------
Message: 3
Date: Sat, 12 May 2007 05:33:26 -0400
From: "Gary"
Subject: Re: [Boatanchors] 4 or 5 color band carbon resistors
To: "Yong Surk Lee/HL1FB" ,
Message-ID: <008801c79478$979bb960$0201a8c0 at computer>
Content-Type: text/plain; charset="ks_c_5601-1987"
I forgot to mention, there's resistors with 6 bands also.
Gary...WZ1M
----- Original Message -----
From: "Gary"
To: "Yong Surk Lee/HL1FB" ;
Sent: Saturday, May 12, 2007 5:28 AM
Subject: Re: [Boatanchors] 4 or 5 color band carbon resistors
> That's the "TOLERANCE" band.
> Gary...WZ1M
> ----- Original Message -----
> From: "Yong Surk Lee/HL1FB"
> To:
> Sent: Saturday, May 12, 2007 4:30 AM
> Subject: [Boatanchors] 4 or 5 color band carbon resistors
>
>
> > Hello
> > I have a lot of 1/2 watt old carbon resistors. Some of them has 4
color
> bands
> > and some has 5 color bands. I know the 4th color band is the tolerence.
> > what does the 5th one represent? I have an old tube radio made in 1960s.
> It uses
> > 4 band carbon resistors. What year did the 5 band ones introduced?
> > YSL
> >
> >
> > _______________________________________________
> > Boatanchors mailing list
> > Boatanchors at mailman.qth.net
> > http://mailman.qth.net/mailman/listinfo/boatanchors
> > ** List Administrator - Duane Fischer, W8DBF/W9WZE **
> > ** For Assistance: dfischer at usol.com **
> > $$ For vintage radio info, see the HCI web site $$
> > http://www.w9wze.org
> >
> >
> >
> >
> >
>
>
> --------------------------------------------------------------------------
--
> ----
>
>
> > _______________________________________________
> > Boatanchors mailing list
> > Boatanchors at mailman.qth.net
> > http://mailman.qth.net/mailman/listinfo/boatanchors
> > ** List Administrator - Duane Fischer, W8DBF/W9WZE **
> > ** For Assistance: dfischer at usol.com **
> > $$ For vintage radio info, see the HCI web site $$
> > http://www.w9wze.org
> >
> >
>
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> --------------------------------------------------------------------------
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> No virus found in this incoming message.
> Checked by AVG Free Edition.
> Version: 7.5.467 / Virus Database: 269.6.8/797 - Release Date: 5/10/2007
> 5:10 PM
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------------------------------
Message: 4
Date: Sat, 12 May 2007 06:49:44 -0500
From: "James Duffer"
Subject: [Boatanchors] 4 or 5 color band carbon resistors
To: yonglee at yonsei.ac.kr
Cc: boatanchors at mailman.qth.net
Message-ID:
Content-Type: text/plain; format=flowed
>From: "Gary"
>To: "Yong Surk Lee/HL1FB"
>,
>Subject: Re: [Boatanchors] 4 or 5 color band carbon resistors
>Date: Sat, 12 May 2007 05:28:59 -0400
>
> Hello
> I have a lot of 1/2 watt old carbon resistors. Some of them has 4
color
bands
> and some has 5 color bands. I know the 4th color band is the tolerence.
> what does the 5th one represent? I have an old tube radio made in 1960s.
It uses
> 4 band carbon resistors. What year did the 5 band ones introduced?
> YSL
>
Normally the color code is first band is first digit, 2nd band is second
digit, third band is the multiplier, fourth band is tolerance, additional
bands can be quality and/or tempcoefficient.
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Message: 5
Date: Sat, 12 May 2007 10:25:26 -0400
From: "John J. McDonough"
Subject: Re: [Boatanchors] Frequency Counter
To:
Message-ID: <008d01c794a1$62b6ef70$14c8662c at Aidan>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
----- Original Message -----
From: "Carole White-Connor"
Subject: [Boatanchors] Frequency Counter
> What do you suggest? I see that some of the Radio Shack digital mulimeters
> have a
> frequency counting function. Are they any good?
Check the specs. A lot of the frequency counters built into multimeters are
only good for audio, but not all. The high priced spread usually count up
into the gigahertz region, which is more than you need.
It isn't at all tough to homebrew a frequency counter. A 60 MHz counter can
be built for under $15 in parts. Check the designs from OM3CPH, for
example. http://ham.kiev.ua/pic/new.html The so-called "Weeder Counter",
which used to be the homebrew standard
http://www.piclist.com/techref/piclict/weedfreq.htm, I think is now
available commercially for a decent price. Take a look at
http://www.qsl.net/wb8rcr/lcdcnt.html -- no schematics there but you can see
how simple it can be.
If you are up for a kit that costs a few bucks, the M-Cubed Frequency
Counter/Power Meter is really nice ... counts up to UHF and will do
hundreths of a Hz at audio. http://www.m3electronix.com/fpm1.html
72/73 de WB8RCR http://www.qsl.net/wb8rcr
didileydadidah QRP-L #1446 Code Warriors #35
------------------------------
Message: 6
Date: Sat, 12 May 2007 10:29:15 -0400
From: "John J. McDonough"
Subject: Re: [Boatanchors] Frequency Counter
To:
Message-ID: <009201c794a1$eb2e6400$14c8662c at Aidan>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=response
----- Original Message -----
From: "Rodger"
To: "Carole White-Connor"
Cc: ;
Sent: Friday, May 11, 2007 7:03 PM
Subject: Re: [Boatanchors] Frequency Counter
> needs. An alternative is one of the digital readout shortwave receivers
> so you can set/monitor the output of the generator. A good little
Good point, Rodger. In fact, more often than the counter I use the main
rig, a digital readout rice box with general coverage. Usually the
sensitivity is good enough that just laying a wire somewhere near the
circuit in question is all it takes to be heard on the station receiver.
72/73 de WB8RCR http://www.qsl.net/wb8rcr
didileydadidah QRP-L #1446 Code Warriors #35
------------------------------
Message: 7
Date: Sat, 12 May 2007 12:02:11 -0500
From: "Revcom Electronics"
Subject: Re: [Boatanchors] Frequency Counter
To: "John J. McDonough" ,
Message-ID: <449EDF003F3A458CA0ED95FF2F425DA9 at rod7vu6baut2im>
Content-Type: text/plain; charset="iso-8859-1"
To keep it "boatanchors" a nice properly calibrated R-390 will
give you less than 1Khz of accuracy on readout.
Rod
----- Original Message -----
From: "John J. McDonough"
To:
Sent: Saturday, May 12, 2007 9:29 AM
Subject: Re: [Boatanchors] Frequency Counter
> ----- Original Message -----
> From: "Rodger"
> To: "Carole White-Connor"
> Cc: ;
> Sent: Friday, May 11, 2007 7:03 PM
> Subject: Re: [Boatanchors] Frequency Counter
>
>
> > needs. An alternative is one of the digital readout shortwave receivers
> > so you can set/monitor the output of the generator. A good little
>
> Good point, Rodger. In fact, more often than the counter I use the main
> rig, a digital readout rice box with general coverage. Usually the
> sensitivity is good enough that just laying a wire somewhere near the
> circuit in question is all it takes to be heard on the station receiver.
>
> 72/73 de WB8RCR http://www.qsl.net/wb8rcr
> didileydadidah QRP-L #1446 Code Warriors #35
>
> _______________________________________________
> Boatanchors mailing list
> Boatanchors at mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/boatanchors
> ** List Administrator - Duane Fischer, W8DBF/W9WZE **
> ** For Assistance: dfischer at usol.com **
> $$ For vintage radio info, see the HCI web site $$
> http://www.w9wze.org
>
>
------------------------------
Message: 8
Date: Sat, 12 May 2007 11:31:57 -0500
From: Rodger
Subject: Re: [Boatanchors] Frequency Counter
To: "John J. McDonough"
Cc: boatanchors at mailman.qth.net
Message-ID: <4645EBFD.5090709 at dtnspeed.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hi John,
I started using this "trick" when I was trying to get an SX-25 back in
alignment; when I received it one band had the HFO tracking on the wrong
side so it was WAY off. I loaded the proper top and bottom frequencies
into memories of the YB-400 and this made the "back and forth" setting a
lot faster. You are right that there is enough signal radiated that it
is easy to pick up and often the harmonics are also strong enough to use
so that receivers that have the European low frequency range can be used
to pick up the harmonics of a 50 Khz. BFO. I did this while restoring a
Drake 1A a couple of months ago to set the BFO.
Most of the modern little shortwaves are PLL synthesized and the
readouts are quite accurate (especially for BA use). On the YB-400 I
put it in SSB mode and then calibrate the BFO for zero beat when tuned
to one of the WWV frequencies which will give you good measurement
accuracy. When I need better accuracy I run my HP-5245L off of the
unleveled counter output.
73, Rodger WQ9E
>
> Good point, Rodger. In fact, more often than the counter I use the
> main rig, a digital readout rice box with general coverage. Usually
> the sensitivity is good enough that just laying a wire somewhere near
> the circuit in question is all it takes to be heard on the station
> receiver.
>
> 72/73 de WB8RCR http://www.qsl.net/wb8rcr
> didileydadidah QRP-L #1446 Code Warriors #35
>
> _______________________________________________
> Boatanchors mailing list
> Boatanchors at mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/boatanchors
> ** List Administrator - Duane Fischer, W8DBF/W9WZE ** ** For
> Assistance: dfischer at usol.com ** $$ For vintage radio info,
> see the HCI web site $$ http://www.w9wze.org
>
>
------------------------------
Message: 9
Date: Sat, 12 May 2007 12:46:05 -0400
From: J Forster
Subject: Re: [Boatanchors] Frequency Counter
To: Rodger
Cc: boatanchors at mailman.qth.net, "John J. McDonough"
Message-ID: <4645EF4D.AA260221 at quik.com>
Content-Type: text/plain; charset=us-ascii
Rodger wrote:
> Hi John,
>
> I started using this "trick" when I was trying to get an SX-25 back in
> alignment; when I received it one band had the HFO tracking on the wrong
> side so it was WAY off. I loaded the proper top and bottom frequencies
> into memories of the YB-400 and this made the "back and forth" setting a
> lot faster. [snip]
I was working of a frequency drift problem on a WS 19 and used a Sony
ICF-2010 in CW mode to tune in the LO then went around tapping things and
with a heat gun and freeze spray. It was easy to hear when the suspect part
was tickled as the beat note changed.
-John
------------------------------
Message: 10
Date: Sat, 12 May 2007 16:53:12 -0400
From: "James M. Walker"
Subject: [Boatanchors] For Sale
To: "Boatanchors"
Message-ID: <006d01c794d7$8e536ce0$317ecd80 at eshop1>
Content-Type: text/plain; charset="iso-8859-1"
Hi Folks,
I have the following items for sale. All items are only slightly used not
banged up.
ICOM PS-125 #1 13.8 VDC 25Amp. 100.00 plus shipping.
ICOM PS-125 #2 13.8 VDC 25Amp. 100.00 plus shipping.
BIRD Model 43 Wattmeter No slugs. No Leather case. 100.00 plus shipping.
BIRD 50H Slug 2-30 Mhz. 50Watt. 50.00 plus shipping.
BIRD 10C Slug 100-250 Mhz. 10Watt. 50.00 plus shipping
BIRD 10D Slug 200-500 Mhz. 10Watt. 50.00 plus shipping
Thanks for the read.
Jim
WB2FCN
------------------------------
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$$ For vintage radio info, see the HCI web site $$
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End of Boatanchors Digest, Vol 40, Issue 16
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