G
GandalfG8@aol.com
Sat, Aug 14, 2010 10:51 PM
In a message dated 14/08/2010 23:39:20 GMT Daylight Time, mfeher@eozinc.com
writes:
Not that it really matters for this thread, but, the 2N2222A was one of the
most common NPNs and not PNPs. As I recall, the 2N2907A was its PNP
complement. - regards - Mike
Wasn't that exactly the point that was being made?:-)
regards
Nigel
GM8PZR
In a message dated 14/08/2010 23:39:20 GMT Daylight Time, mfeher@eozinc.com
writes:
Not that it really matters for this thread, but, the 2N2222A was one of the
most common NPNs and not PNPs. As I recall, the 2N2907A was its PNP
complement. - regards - Mike
------------------
Wasn't that exactly the point that was being made?:-)
regards
Nigel
GM8PZR
MF
Mike Feher
Sun, Aug 15, 2010 12:45 AM
Yes, I guess it was. I have been in the military business since 1967, and,
certainly seen my share. Besides all of the screw ups, there was one that
really took the cake. I once worked for a company that had to build a radio
that was strictly build-to-print. The original drawing had a mil-spec yellow
band resistor of value X in the front end. Well, with that resistor the NF
could not be met. They could meet it with a value Y. Pleading with the
government reps made no difference. Finally, the head of the company QA
department wrote a letter to AB and actually asked them to provide resistors
with value Y, but, color code them with the value X. Everyone signed off on
it, and, everything was fine. I still have a copy of the letter someplace. I
just got back from Fort Bragg where I was involved in certifying a system at
Ka band. The antenna is a 30 footer and had only a 10 degree elevation look
angle to see the bird needed. Well, guess what? There are three 30 foot
dishes in the system, the other two being Ku, and this antenna was between
them looking right through one of the Ku antennas. Really messed with the
patterns. Now, based on my input they are changing the feed assembly and all
of the RF between the two antennas to prevent the blockage. It will take a
month. I am sure I will be there again. A few simple examples of hundreds.
Mike B. Feher, N4FS
89 Arnold Blvd.
Howell, NJ, 07731
732-886-5960
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On
Behalf Of GandalfG8@aol.com
Sent: Saturday, August 14, 2010 6:52 PM
To: time-nuts@febo.com
Subject: Re: [time-nuts] Simulation
In a message dated 14/08/2010 23:39:20 GMT Daylight Time, mfeher@eozinc.com
writes:
Not that it really matters for this thread, but, the 2N2222A was one of the
most common NPNs and not PNPs. As I recall, the 2N2907A was its PNP
complement. - regards - Mike
Wasn't that exactly the point that was being made?:-)
regards
Nigel
GM8PZR
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
Yes, I guess it was. I have been in the military business since 1967, and,
certainly seen my share. Besides all of the screw ups, there was one that
really took the cake. I once worked for a company that had to build a radio
that was strictly build-to-print. The original drawing had a mil-spec yellow
band resistor of value X in the front end. Well, with that resistor the NF
could not be met. They could meet it with a value Y. Pleading with the
government reps made no difference. Finally, the head of the company QA
department wrote a letter to AB and actually asked them to provide resistors
with value Y, but, color code them with the value X. Everyone signed off on
it, and, everything was fine. I still have a copy of the letter someplace. I
just got back from Fort Bragg where I was involved in certifying a system at
Ka band. The antenna is a 30 footer and had only a 10 degree elevation look
angle to see the bird needed. Well, guess what? There are three 30 foot
dishes in the system, the other two being Ku, and this antenna was between
them looking right through one of the Ku antennas. Really messed with the
patterns. Now, based on my input they are changing the feed assembly and all
of the RF between the two antennas to prevent the blockage. It will take a
month. I am sure I will be there again. A few simple examples of hundreds.
- Regards - Mike
Mike B. Feher, N4FS
89 Arnold Blvd.
Howell, NJ, 07731
732-886-5960
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On
Behalf Of GandalfG8@aol.com
Sent: Saturday, August 14, 2010 6:52 PM
To: time-nuts@febo.com
Subject: Re: [time-nuts] Simulation
In a message dated 14/08/2010 23:39:20 GMT Daylight Time, mfeher@eozinc.com
writes:
Not that it really matters for this thread, but, the 2N2222A was one of the
most common NPNs and not PNPs. As I recall, the 2N2907A was its PNP
complement. - regards - Mike
------------------
Wasn't that exactly the point that was being made?:-)
regards
Nigel
GM8PZR
_______________________________________________
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
JF
J. Forster
Sun, Aug 15, 2010 1:42 AM
?? The yellow banded R means established reliability. I see no reason why
the NF should be any different then one w/o the yellow band. They are the
same part, only one is tested more.
Not white band perchance?
-John
===========
Yes, I guess it was. I have been in the military business since 1967, and,
certainly seen my share. Besides all of the screw ups, there was one that
really took the cake. I once worked for a company that had to build a
radio
that was strictly build-to-print. The original drawing had a mil-spec
yellow
band resistor of value X in the front end. Well, with that resistor the NF
could not be met. They could meet it with a value Y. Pleading with the
government reps made no difference. Finally, the head of the company QA
department wrote a letter to AB and actually asked them to provide
resistors
with value Y, but, color code them with the value X. Everyone signed off
on
it, and, everything was fine. I still have a copy of the letter someplace.
I
just got back from Fort Bragg where I was involved in certifying a system
at
Ka band. The antenna is a 30 footer and had only a 10 degree elevation
look
angle to see the bird needed. Well, guess what? There are three 30 foot
dishes in the system, the other two being Ku, and this antenna was between
them looking right through one of the Ku antennas. Really messed with the
patterns. Now, based on my input they are changing the feed assembly and
all
of the RF between the two antennas to prevent the blockage. It will take a
month. I am sure I will be there again. A few simple examples of hundreds.
Mike B. Feher, N4FS
89 Arnold Blvd.
Howell, NJ, 07731
732-886-5960
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On
Behalf Of GandalfG8@aol.com
Sent: Saturday, August 14, 2010 6:52 PM
To: time-nuts@febo.com
Subject: Re: [time-nuts] Simulation
In a message dated 14/08/2010 23:39:20 GMT Daylight Time,
mfeher@eozinc.com
writes:
Not that it really matters for this thread, but, the 2N2222A was one of
the
most common NPNs and not PNPs. As I recall, the 2N2907A was its PNP
complement. - regards - Mike
Wasn't that exactly the point that was being made?:-)
regards
Nigel
GM8PZR
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
?? The yellow banded R means established reliability. I see no reason why
the NF should be any different then one w/o the yellow band. They are the
same part, only one is tested more.
Not white band perchance?
-John
===========
> Yes, I guess it was. I have been in the military business since 1967, and,
> certainly seen my share. Besides all of the screw ups, there was one that
> really took the cake. I once worked for a company that had to build a
> radio
> that was strictly build-to-print. The original drawing had a mil-spec
> yellow
> band resistor of value X in the front end. Well, with that resistor the NF
> could not be met. They could meet it with a value Y. Pleading with the
> government reps made no difference. Finally, the head of the company QA
> department wrote a letter to AB and actually asked them to provide
> resistors
> with value Y, but, color code them with the value X. Everyone signed off
> on
> it, and, everything was fine. I still have a copy of the letter someplace.
> I
> just got back from Fort Bragg where I was involved in certifying a system
> at
> Ka band. The antenna is a 30 footer and had only a 10 degree elevation
> look
> angle to see the bird needed. Well, guess what? There are three 30 foot
> dishes in the system, the other two being Ku, and this antenna was between
> them looking right through one of the Ku antennas. Really messed with the
> patterns. Now, based on my input they are changing the feed assembly and
> all
> of the RF between the two antennas to prevent the blockage. It will take a
> month. I am sure I will be there again. A few simple examples of hundreds.
> - Regards - Mike
>
> Mike B. Feher, N4FS
> 89 Arnold Blvd.
> Howell, NJ, 07731
> 732-886-5960
>
>
>
>
> -----Original Message-----
> From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On
> Behalf Of GandalfG8@aol.com
> Sent: Saturday, August 14, 2010 6:52 PM
> To: time-nuts@febo.com
> Subject: Re: [time-nuts] Simulation
>
>
> In a message dated 14/08/2010 23:39:20 GMT Daylight Time,
> mfeher@eozinc.com
> writes:
>
> Not that it really matters for this thread, but, the 2N2222A was one of
> the
> most common NPNs and not PNPs. As I recall, the 2N2907A was its PNP
> complement. - regards - Mike
>
>
> ------------------
> Wasn't that exactly the point that was being made?:-)
>
> regards
>
> Nigel
> GM8PZR
> _______________________________________________
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>
>
> _______________________________________________
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>
>
MF
Mike Feher
Sun, Aug 15, 2010 1:50 AM
I only mentioned the yellow band because of reliability. Seems like the
original resistor was 220 ohms and the one that actually met the required NF
was 330 (or the other way around). So, it was not the yellow band that had
to be changed. - Mike
Mike B. Feher, N4FS
89 Arnold Blvd.
Howell, NJ, 07731
732-886-5960
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On
Behalf Of J. Forster
Sent: Saturday, August 14, 2010 9:43 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Simulation
?? The yellow banded R means established reliability. I see no reason why
the NF should be any different then one w/o the yellow band. They are the
same part, only one is tested more.
Not white band perchance?
-John
===========
Yes, I guess it was. I have been in the military business since 1967, and,
certainly seen my share. Besides all of the screw ups, there was one that
really took the cake. I once worked for a company that had to build a
radio
that was strictly build-to-print. The original drawing had a mil-spec
yellow
band resistor of value X in the front end. Well, with that resistor the NF
could not be met. They could meet it with a value Y. Pleading with the
government reps made no difference. Finally, the head of the company QA
department wrote a letter to AB and actually asked them to provide
resistors
with value Y, but, color code them with the value X. Everyone signed off
on
it, and, everything was fine. I still have a copy of the letter someplace.
I
just got back from Fort Bragg where I was involved in certifying a system
at
Ka band. The antenna is a 30 footer and had only a 10 degree elevation
look
angle to see the bird needed. Well, guess what? There are three 30 foot
dishes in the system, the other two being Ku, and this antenna was between
them looking right through one of the Ku antennas. Really messed with the
patterns. Now, based on my input they are changing the feed assembly and
all
of the RF between the two antennas to prevent the blockage. It will take a
month. I am sure I will be there again. A few simple examples of hundreds.
Mike B. Feher, N4FS
89 Arnold Blvd.
Howell, NJ, 07731
732-886-5960
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On
Behalf Of GandalfG8@aol.com
Sent: Saturday, August 14, 2010 6:52 PM
To: time-nuts@febo.com
Subject: Re: [time-nuts] Simulation
In a message dated 14/08/2010 23:39:20 GMT Daylight Time,
mfeher@eozinc.com
writes:
Not that it really matters for this thread, but, the 2N2222A was one of
the
most common NPNs and not PNPs. As I recall, the 2N2907A was its PNP
complement. - regards - Mike
Wasn't that exactly the point that was being made?:-)
regards
Nigel
GM8PZR
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
I only mentioned the yellow band because of reliability. Seems like the
original resistor was 220 ohms and the one that actually met the required NF
was 330 (or the other way around). So, it was not the yellow band that had
to be changed. - Mike
Mike B. Feher, N4FS
89 Arnold Blvd.
Howell, NJ, 07731
732-886-5960
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On
Behalf Of J. Forster
Sent: Saturday, August 14, 2010 9:43 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Simulation
?? The yellow banded R means established reliability. I see no reason why
the NF should be any different then one w/o the yellow band. They are the
same part, only one is tested more.
Not white band perchance?
-John
===========
> Yes, I guess it was. I have been in the military business since 1967, and,
> certainly seen my share. Besides all of the screw ups, there was one that
> really took the cake. I once worked for a company that had to build a
> radio
> that was strictly build-to-print. The original drawing had a mil-spec
> yellow
> band resistor of value X in the front end. Well, with that resistor the NF
> could not be met. They could meet it with a value Y. Pleading with the
> government reps made no difference. Finally, the head of the company QA
> department wrote a letter to AB and actually asked them to provide
> resistors
> with value Y, but, color code them with the value X. Everyone signed off
> on
> it, and, everything was fine. I still have a copy of the letter someplace.
> I
> just got back from Fort Bragg where I was involved in certifying a system
> at
> Ka band. The antenna is a 30 footer and had only a 10 degree elevation
> look
> angle to see the bird needed. Well, guess what? There are three 30 foot
> dishes in the system, the other two being Ku, and this antenna was between
> them looking right through one of the Ku antennas. Really messed with the
> patterns. Now, based on my input they are changing the feed assembly and
> all
> of the RF between the two antennas to prevent the blockage. It will take a
> month. I am sure I will be there again. A few simple examples of hundreds.
> - Regards - Mike
>
> Mike B. Feher, N4FS
> 89 Arnold Blvd.
> Howell, NJ, 07731
> 732-886-5960
>
>
>
>
> -----Original Message-----
> From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On
> Behalf Of GandalfG8@aol.com
> Sent: Saturday, August 14, 2010 6:52 PM
> To: time-nuts@febo.com
> Subject: Re: [time-nuts] Simulation
>
>
> In a message dated 14/08/2010 23:39:20 GMT Daylight Time,
> mfeher@eozinc.com
> writes:
>
> Not that it really matters for this thread, but, the 2N2222A was one of
> the
> most common NPNs and not PNPs. As I recall, the 2N2907A was its PNP
> complement. - regards - Mike
>
>
> ------------------
> Wasn't that exactly the point that was being made?:-)
>
> regards
>
> Nigel
> GM8PZR
> _______________________________________________
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>
>
> _______________________________________________
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>
>
_______________________________________________
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To unsubscribe, go to
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and follow the instructions there.
BC
Bob Camp
Sun, Aug 15, 2010 1:55 AM
Hi
I think it was the value that changed. Somebody typo'd 10k at 10 ohms ....
Bob
On Aug 14, 2010, at 9:42 PM, "J. Forster" jfor@quik.com wrote:
?? The yellow banded R means established reliability. I see no reason why
the NF should be any different then one w/o the yellow band. They are the
same part, only one is tested more.
Not white band perchance?
-John
===========
Yes, I guess it was. I have been in the military business since 1967, and,
certainly seen my share. Besides all of the screw ups, there was one that
really took the cake. I once worked for a company that had to build a
radio
that was strictly build-to-print. The original drawing had a mil-spec
yellow
band resistor of value X in the front end. Well, with that resistor the NF
could not be met. They could meet it with a value Y. Pleading with the
government reps made no difference. Finally, the head of the company QA
department wrote a letter to AB and actually asked them to provide
resistors
with value Y, but, color code them with the value X. Everyone signed off
on
it, and, everything was fine. I still have a copy of the letter someplace.
I
just got back from Fort Bragg where I was involved in certifying a system
at
Ka band. The antenna is a 30 footer and had only a 10 degree elevation
look
angle to see the bird needed. Well, guess what? There are three 30 foot
dishes in the system, the other two being Ku, and this antenna was between
them looking right through one of the Ku antennas. Really messed with the
patterns. Now, based on my input they are changing the feed assembly and
all
of the RF between the two antennas to prevent the blockage. It will take a
month. I am sure I will be there again. A few simple examples of hundreds.
Mike B. Feher, N4FS
89 Arnold Blvd.
Howell, NJ, 07731
732-886-5960
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On
Behalf Of GandalfG8@aol.com
Sent: Saturday, August 14, 2010 6:52 PM
To: time-nuts@febo.com
Subject: Re: [time-nuts] Simulation
In a message dated 14/08/2010 23:39:20 GMT Daylight Time,
mfeher@eozinc.com
writes:
Not that it really matters for this thread, but, the 2N2222A was one of
the
most common NPNs and not PNPs. As I recall, the 2N2907A was its PNP
complement. - regards - Mike
Wasn't that exactly the point that was being made?:-)
regards
Nigel
GM8PZR
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
Hi
I think it was the value that changed. Somebody typo'd 10k at 10 ohms ....
Bob
On Aug 14, 2010, at 9:42 PM, "J. Forster" <jfor@quik.com> wrote:
> ?? The yellow banded R means established reliability. I see no reason why
> the NF should be any different then one w/o the yellow band. They are the
> same part, only one is tested more.
>
> Not white band perchance?
>
> -John
>
> ===========
>
>
>> Yes, I guess it was. I have been in the military business since 1967, and,
>> certainly seen my share. Besides all of the screw ups, there was one that
>> really took the cake. I once worked for a company that had to build a
>> radio
>> that was strictly build-to-print. The original drawing had a mil-spec
>> yellow
>> band resistor of value X in the front end. Well, with that resistor the NF
>> could not be met. They could meet it with a value Y. Pleading with the
>> government reps made no difference. Finally, the head of the company QA
>> department wrote a letter to AB and actually asked them to provide
>> resistors
>> with value Y, but, color code them with the value X. Everyone signed off
>> on
>> it, and, everything was fine. I still have a copy of the letter someplace.
>> I
>> just got back from Fort Bragg where I was involved in certifying a system
>> at
>> Ka band. The antenna is a 30 footer and had only a 10 degree elevation
>> look
>> angle to see the bird needed. Well, guess what? There are three 30 foot
>> dishes in the system, the other two being Ku, and this antenna was between
>> them looking right through one of the Ku antennas. Really messed with the
>> patterns. Now, based on my input they are changing the feed assembly and
>> all
>> of the RF between the two antennas to prevent the blockage. It will take a
>> month. I am sure I will be there again. A few simple examples of hundreds.
>> - Regards - Mike
>>
>> Mike B. Feher, N4FS
>> 89 Arnold Blvd.
>> Howell, NJ, 07731
>> 732-886-5960
>>
>>
>>
>>
>> -----Original Message-----
>> From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On
>> Behalf Of GandalfG8@aol.com
>> Sent: Saturday, August 14, 2010 6:52 PM
>> To: time-nuts@febo.com
>> Subject: Re: [time-nuts] Simulation
>>
>>
>> In a message dated 14/08/2010 23:39:20 GMT Daylight Time,
>> mfeher@eozinc.com
>> writes:
>>
>> Not that it really matters for this thread, but, the 2N2222A was one of
>> the
>> most common NPNs and not PNPs. As I recall, the 2N2907A was its PNP
>> complement. - regards - Mike
>>
>>
>> ------------------
>> Wasn't that exactly the point that was being made?:-)
>>
>> regards
>>
>> Nigel
>> GM8PZR
>> _______________________________________________
>> time-nuts mailing list -- time-nuts@febo.com
>> To unsubscribe, go to
>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>> and follow the instructions there.
>>
>>
>> _______________________________________________
>> time-nuts mailing list -- time-nuts@febo.com
>> To unsubscribe, go to
>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>> and follow the instructions there.
>>
>>
>
>
>
> _______________________________________________
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>
JF
J. Forster
Sun, Aug 15, 2010 2:01 AM
Somebody read the resistor code backwards then? Easy enough if you don't
know what you're doing w/ Established Reliability parts.
-John
=============
I only mentioned the yellow band because of reliability. Seems like the
original resistor was 220 ohms and the one that actually met the required
NF
was 330 (or the other way around). So, it was not the yellow band that had
to be changed. - Mike
Mike B. Feher, N4FS
89 Arnold Blvd.
Howell, NJ, 07731
732-886-5960
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On
Behalf Of J. Forster
Sent: Saturday, August 14, 2010 9:43 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Simulation
?? The yellow banded R means established reliability. I see no reason why
the NF should be any different then one w/o the yellow band. They are the
same part, only one is tested more.
Not white band perchance?
-John
===========
Yes, I guess it was. I have been in the military business since 1967,
and,
certainly seen my share. Besides all of the screw ups, there was one
that
really took the cake. I once worked for a company that had to build a
radio
that was strictly build-to-print. The original drawing had a mil-spec
yellow
band resistor of value X in the front end. Well, with that resistor the
NF
could not be met. They could meet it with a value Y. Pleading with the
government reps made no difference. Finally, the head of the company QA
department wrote a letter to AB and actually asked them to provide
resistors
with value Y, but, color code them with the value X. Everyone signed off
on
it, and, everything was fine. I still have a copy of the letter
someplace.
I
just got back from Fort Bragg where I was involved in certifying a
system
at
Ka band. The antenna is a 30 footer and had only a 10 degree elevation
look
angle to see the bird needed. Well, guess what? There are three 30 foot
dishes in the system, the other two being Ku, and this antenna was
between
them looking right through one of the Ku antennas. Really messed with
the
patterns. Now, based on my input they are changing the feed assembly and
all
of the RF between the two antennas to prevent the blockage. It will take
a
month. I am sure I will be there again. A few simple examples of
hundreds.
Mike B. Feher, N4FS
89 Arnold Blvd.
Howell, NJ, 07731
732-886-5960
-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On
Behalf Of GandalfG8@aol.com
Sent: Saturday, August 14, 2010 6:52 PM
To: time-nuts@febo.com
Subject: Re: [time-nuts] Simulation
In a message dated 14/08/2010 23:39:20 GMT Daylight Time,
mfeher@eozinc.com
writes:
Not that it really matters for this thread, but, the 2N2222A was one of
the
most common NPNs and not PNPs. As I recall, the 2N2907A was its PNP
complement. - regards - Mike
Wasn't that exactly the point that was being made?:-)
regards
Nigel
GM8PZR
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Somebody read the resistor code backwards then? Easy enough if you don't
know what you're doing w/ Established Reliability parts.
-John
=============
> I only mentioned the yellow band because of reliability. Seems like the
> original resistor was 220 ohms and the one that actually met the required
> NF
> was 330 (or the other way around). So, it was not the yellow band that had
> to be changed. - Mike
>
> Mike B. Feher, N4FS
> 89 Arnold Blvd.
> Howell, NJ, 07731
> 732-886-5960
>
>
>
>
> -----Original Message-----
> From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On
> Behalf Of J. Forster
> Sent: Saturday, August 14, 2010 9:43 PM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] Simulation
>
> ?? The yellow banded R means established reliability. I see no reason why
> the NF should be any different then one w/o the yellow band. They are the
> same part, only one is tested more.
>
> Not white band perchance?
>
> -John
>
> ===========
>
>
>> Yes, I guess it was. I have been in the military business since 1967,
>> and,
>> certainly seen my share. Besides all of the screw ups, there was one
>> that
>> really took the cake. I once worked for a company that had to build a
>> radio
>> that was strictly build-to-print. The original drawing had a mil-spec
>> yellow
>> band resistor of value X in the front end. Well, with that resistor the
>> NF
>> could not be met. They could meet it with a value Y. Pleading with the
>> government reps made no difference. Finally, the head of the company QA
>> department wrote a letter to AB and actually asked them to provide
>> resistors
>> with value Y, but, color code them with the value X. Everyone signed off
>> on
>> it, and, everything was fine. I still have a copy of the letter
>> someplace.
>> I
>> just got back from Fort Bragg where I was involved in certifying a
>> system
>> at
>> Ka band. The antenna is a 30 footer and had only a 10 degree elevation
>> look
>> angle to see the bird needed. Well, guess what? There are three 30 foot
>> dishes in the system, the other two being Ku, and this antenna was
>> between
>> them looking right through one of the Ku antennas. Really messed with
>> the
>> patterns. Now, based on my input they are changing the feed assembly and
>> all
>> of the RF between the two antennas to prevent the blockage. It will take
>> a
>> month. I am sure I will be there again. A few simple examples of
>> hundreds.
>> - Regards - Mike
>>
>> Mike B. Feher, N4FS
>> 89 Arnold Blvd.
>> Howell, NJ, 07731
>> 732-886-5960
>>
>>
>>
>>
>> -----Original Message-----
>> From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On
>> Behalf Of GandalfG8@aol.com
>> Sent: Saturday, August 14, 2010 6:52 PM
>> To: time-nuts@febo.com
>> Subject: Re: [time-nuts] Simulation
>>
>>
>> In a message dated 14/08/2010 23:39:20 GMT Daylight Time,
>> mfeher@eozinc.com
>> writes:
>>
>> Not that it really matters for this thread, but, the 2N2222A was one of
>> the
>> most common NPNs and not PNPs. As I recall, the 2N2907A was its PNP
>> complement. - regards - Mike
>>
>>
>> ------------------
>> Wasn't that exactly the point that was being made?:-)
>>
>> regards
>>
>> Nigel
>> GM8PZR
>> _______________________________________________
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>> and follow the instructions there.
>>
>>
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>>
>
>
>
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