Re: [time-nuts] modification Lucent RFTG
Jorg Excellent improvement.Now I can easily see the cap that was removed and whats left is the glue from manufacturing. It makes sense. Regards Paul WB8TSL On Sun, Dec 13, 2015 at 4:59 PM, Jörg Logemann wrote: > Rex, > I made some modifications to my article and I hope, that everything is > ok now. Please feel free to correct the text if you find some spelling > mistakes (very likely) because my english is not perfect, hi. > Thanks for your help, > best 73s > Joerg, DL2NI > > > Am 13.12.2015 um 12:00 schrieb Rex: > > Joerg, > > > > This looks like a very useful mod on a unit that many of us have. I'm > > not aware of any schematics available for these, so I guess you have > > reverse-engineered the "black" part of the schematic that you > > provided. -- Nice work! > > > > Having said that, may I offer some minor criticism (constructive and > > positive, I hope) of your document? > > > > The schematic you provided shows the key transistors as Q1 and Q2. In > > the text you refer to Q208 and Q209 (which I think are marked on the > > board). From the description, I think Q1 = Q208 and Q2 = Q209. It > > would be nice if the schematic had the Q-numbers changed, or at least, > > you mentioned the equivalence in your text. > > > > (Trivial) Aren't you using an existing SMA connector for your output? > > So, maybe it should be black in the schematic. > > > > Your picture of the board rework is pretty low resolution; even > > zooming into it just gives bigger blurry image. You have added some > > annotations but they are in red over the green board color. Combined > > with the low resolution they are very hard to read. I'm pretty sure > > they remain in German in the English version too. > > > > My suggestions: > > - Edit the schematic to change the Q-numbers to match the board > > and text, or at least give the equivalence in the text. > > - Use a higher resolution picture and make the annotations more > > readable with different color or background shading. > > - The picture you provide is "after". It would be nice to also > > have "before". If you don't have a before picture, I or some other > > member could probably take one. > > - Consider having picture annotations in English for the English > > version. > > > > I think what you have done is great. I just think the sharing document > > could be improved to make it easier for others to duplicate. > > > > If you like, I could possibly help make a more readable annotated > > picture if you can provide me a higher res picture of the board. Just > > an offer to help if you would consider my suggestions. I think you > > will see my email in my post. > > > > -Rex KK6MK > > > > > > > > On 12/12/2015 4:39 PM, Jörg Logemann wrote: > >> Hi, > >> I worked out a modification of the Lucent GPSDO to get 10MHz out of it > >> which I offer to the community. The article is available in english and > >> german (attached). > >> > >> best 73 > >> Joerg, DL2NI > >> > >> > > > > ___ > > 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. > > -- > Dipl.Ing.(FH) Jörg Logemann > Veilchenstraße 3 > D-89150 Laichingen > Germany > Tel. +49 7333 922506 > Mobil +49 171 2814359 > Fax. +49 7333 922507 > mail: joerg.logem...@t-online.de > > > ___ > 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.
Re: [time-nuts] modification Lucent RFTG
Joerg,
It all looks good to me. I didn't notice any problems at all with the
English text. Much easier to follow with the improved pictures.
I notice that the annotations on the picture for the German version are
the same as the English version now. Very little that would change
("move" and "pad"?) and probably easy to figure out, so probably fine as
it is. Just thought I would mention it.
Thanks for sharing your Mods. Nicely done. Should be helpful.
-Rex
On 12/13/2015 1:59 PM, Jörg Logemann wrote:
Rex,
I made some modifications to my article and I hope, that everything is
ok now. Please feel free to correct the text if you find some spelling
mistakes (very likely) because my english is not perfect, hi.
Thanks for your help,
best 73s
Joerg, DL2NI
Am 13.12.2015 um 12:00 schrieb Rex:
Joerg,
This looks like a very useful mod on a unit that many of us have. I'm
not aware of any schematics available for these, so I guess you have
reverse-engineered the "black" part of the schematic that you
provided. -- Nice work!
Having said that, may I offer some minor criticism (constructive and
positive, I hope) of your document?
The schematic you provided shows the key transistors as Q1 and Q2. In
the text you refer to Q208 and Q209 (which I think are marked on the
board). From the description, I think Q1 = Q208 and Q2 = Q209. It
would be nice if the schematic had the Q-numbers changed, or at least,
you mentioned the equivalence in your text.
(Trivial) Aren't you using an existing SMA connector for your output?
So, maybe it should be black in the schematic.
Your picture of the board rework is pretty low resolution; even
zooming into it just gives bigger blurry image. You have added some
annotations but they are in red over the green board color. Combined
with the low resolution they are very hard to read. I'm pretty sure
they remain in German in the English version too.
My suggestions:
- Edit the schematic to change the Q-numbers to match the board
and text, or at least give the equivalence in the text.
- Use a higher resolution picture and make the annotations more
readable with different color or background shading.
- The picture you provide is "after". It would be nice to also
have "before". If you don't have a before picture, I or some other
member could probably take one.
- Consider having picture annotations in English for the English
version.
I think what you have done is great. I just think the sharing document
could be improved to make it easier for others to duplicate.
If you like, I could possibly help make a more readable annotated
picture if you can provide me a higher res picture of the board. Just
an offer to help if you would consider my suggestions. I think you
will see my email in my post.
-Rex KK6MK
On 12/12/2015 4:39 PM, Jörg Logemann wrote:
Hi,
I worked out a modification of the Lucent GPSDO to get 10MHz out of it
which I offer to the community. The article is available in english and
german (attached).
best 73
Joerg, DL2NI
___
time-nuts mailing list -- time-nuts@febo.com
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Re: [time-nuts] modification Lucent RFTG
Paul, thanks for your reply. I did not cut any trace on the pc board. The separation from the 15MHz signal is done by removing the 10nF capacitor. Yes, the short line leeding to the cap is still there but this little "stub" has no effect. Of course the line can be cut, but I like to "keep all doors open" if I want to remove the modification one day, hi. With the video amp you will have more power compared to my solution, also a good way... I will build a distribution box with 9 outputs for the 10MHz signal (4 powersplitter 1to3) and thus will need another amplifier. Perhaps you could make it passive because of more gain. 73 Joerg DL2NI Am 13.12.2015 um 16:21 schrieb paul swed: > Joerg > Yes this looks like a nice simple mod. > Its difficult to tell from the pictures but in order to use the sma it > looks like you cut the trace over by the cap. > I ran into the same thing. The lead goes into the board and its end point > is unclear. > When I released a solution about 9 months ago I used a video op-amp. This > gave gain and drive. But with more complexity. > It is a bit of a challenge to slip the boards in and out. > Thanks > Paul > WB8TSL > > On Sun, Dec 13, 2015 at 6:00 AM, Rex wrote: > >> Joerg, >> >> This looks like a very useful mod on a unit that many of us have. I'm not >> aware of any schematics available for these, so I guess you have >> reverse-engineered the "black" part of the schematic that you provided. -- >> Nice work! >> >> Having said that, may I offer some minor criticism (constructive and >> positive, I hope) of your document? >> >> The schematic you provided shows the key transistors as Q1 and Q2. In the >> text you refer to Q208 and Q209 (which I think are marked on the board). >> From the description, I think Q1 = Q208 and Q2 = Q209. It would be nice if >> the schematic had the Q-numbers changed, or at least, you mentioned the >> equivalence in your text. >> >> (Trivial) Aren't you using an existing SMA connector for your output? So, >> maybe it should be black in the schematic. >> >> Your picture of the board rework is pretty low resolution; even zooming >> into it just gives bigger blurry image. You have added some annotations but >> they are in red over the green board color. Combined with the low >> resolution they are very hard to read. I'm pretty sure they remain in >> German in the English version too. >> >> My suggestions: >> - Edit the schematic to change the Q-numbers to match the board and >> text, or at least give the equivalence in the text. >> - Use a higher resolution picture and make the annotations more >> readable with different color or background shading. >> - The picture you provide is "after". It would be nice to also have >> "before". If you don't have a before picture, I or some other member could >> probably take one. >> - Consider having picture annotations in English for the English >> version. >> >> I think what you have done is great. I just think the sharing document >> could be improved to make it easier for others to duplicate. >> >> If you like, I could possibly help make a more readable annotated picture >> if you can provide me a higher res picture of the board. Just an offer to >> help if you would consider my suggestions. I think you will see my email in >> my post. >> >> -Rex KK6MK >> >> >> >> On 12/12/2015 4:39 PM, Jörg Logemann wrote: >> >>> Hi, >>> I worked out a modification of the Lucent GPSDO to get 10MHz out of it >>> which I offer to the community. The article is available in english and >>> german (attached). >>> >>> best 73 >>> Joerg, DL2NI >>> >>> >>> >> ___ >> 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. -- Dipl.Ing.(FH) Jörg Logemann Veilchenstraße 3 D-89150 Laichingen Germany Tel. +49 7333 922506 Mobil +49 171 2814359 Fax. +49 7333 922507 mail: joerg.logem...@t-online.de ___ 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.
Re: [time-nuts] modification Lucent RFTG
Rex, thank you for your reply! Your "minor criticism" is justified, I wil do the changes immediately (today). If you read your own article for the 20th time you don't see things like these... Thank you very much. vy73 Joerg Am 13.12.2015 um 12:00 schrieb Rex: > Joerg, > > This looks like a very useful mod on a unit that many of us have. I'm > not aware of any schematics available for these, so I guess you have > reverse-engineered the "black" part of the schematic that you > provided. -- Nice work! > > Having said that, may I offer some minor criticism (constructive and > positive, I hope) of your document? > > The schematic you provided shows the key transistors as Q1 and Q2. In > the text you refer to Q208 and Q209 (which I think are marked on the > board). From the description, I think Q1 = Q208 and Q2 = Q209. It > would be nice if the schematic had the Q-numbers changed, or at least, > you mentioned the equivalence in your text. > > (Trivial) Aren't you using an existing SMA connector for your output? > So, maybe it should be black in the schematic. > > Your picture of the board rework is pretty low resolution; even > zooming into it just gives bigger blurry image. You have added some > annotations but they are in red over the green board color. Combined > with the low resolution they are very hard to read. I'm pretty sure > they remain in German in the English version too. > > My suggestions: > - Edit the schematic to change the Q-numbers to match the board > and text, or at least give the equivalence in the text. > - Use a higher resolution picture and make the annotations more > readable with different color or background shading. > - The picture you provide is "after". It would be nice to also > have "before". If you don't have a before picture, I or some other > member could probably take one. > - Consider having picture annotations in English for the English > version. > > I think what you have done is great. I just think the sharing document > could be improved to make it easier for others to duplicate. > > If you like, I could possibly help make a more readable annotated > picture if you can provide me a higher res picture of the board. Just > an offer to help if you would consider my suggestions. I think you > will see my email in my post. > > -Rex KK6MK > > > > On 12/12/2015 4:39 PM, Jörg Logemann wrote: >> Hi, >> I worked out a modification of the Lucent GPSDO to get 10MHz out of it >> which I offer to the community. The article is available in english and >> german (attached). >> >> best 73 >> Joerg, DL2NI >> >> > > ___ > 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. -- Dipl.Ing.(FH) Jörg Logemann Veilchenstraße 3 D-89150 Laichingen Germany Tel. +49 7333 922506 Mobil +49 171 2814359 Fax. +49 7333 922507 mail: joerg.logem...@t-online.de ___ 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.
Re: [time-nuts] modification Lucent RFTG
Joerg Yes this looks like a nice simple mod. Its difficult to tell from the pictures but in order to use the sma it looks like you cut the trace over by the cap. I ran into the same thing. The lead goes into the board and its end point is unclear. When I released a solution about 9 months ago I used a video op-amp. This gave gain and drive. But with more complexity. It is a bit of a challenge to slip the boards in and out. Thanks Paul WB8TSL On Sun, Dec 13, 2015 at 6:00 AM, Rex wrote: > Joerg, > > This looks like a very useful mod on a unit that many of us have. I'm not > aware of any schematics available for these, so I guess you have > reverse-engineered the "black" part of the schematic that you provided. -- > Nice work! > > Having said that, may I offer some minor criticism (constructive and > positive, I hope) of your document? > > The schematic you provided shows the key transistors as Q1 and Q2. In the > text you refer to Q208 and Q209 (which I think are marked on the board). > From the description, I think Q1 = Q208 and Q2 = Q209. It would be nice if > the schematic had the Q-numbers changed, or at least, you mentioned the > equivalence in your text. > > (Trivial) Aren't you using an existing SMA connector for your output? So, > maybe it should be black in the schematic. > > Your picture of the board rework is pretty low resolution; even zooming > into it just gives bigger blurry image. You have added some annotations but > they are in red over the green board color. Combined with the low > resolution they are very hard to read. I'm pretty sure they remain in > German in the English version too. > > My suggestions: > - Edit the schematic to change the Q-numbers to match the board and > text, or at least give the equivalence in the text. > - Use a higher resolution picture and make the annotations more > readable with different color or background shading. > - The picture you provide is "after". It would be nice to also have > "before". If you don't have a before picture, I or some other member could > probably take one. > - Consider having picture annotations in English for the English > version. > > I think what you have done is great. I just think the sharing document > could be improved to make it easier for others to duplicate. > > If you like, I could possibly help make a more readable annotated picture > if you can provide me a higher res picture of the board. Just an offer to > help if you would consider my suggestions. I think you will see my email in > my post. > > -Rex KK6MK > > > > On 12/12/2015 4:39 PM, Jörg Logemann wrote: > >> Hi, >> I worked out a modification of the Lucent GPSDO to get 10MHz out of it >> which I offer to the community. The article is available in english and >> german (attached). >> >> best 73 >> Joerg, DL2NI >> >> >> > ___ > 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.
Re: [time-nuts] modification Lucent RFTG
Joerg, This looks like a very useful mod on a unit that many of us have. I'm not aware of any schematics available for these, so I guess you have reverse-engineered the "black" part of the schematic that you provided. -- Nice work! Having said that, may I offer some minor criticism (constructive and positive, I hope) of your document? The schematic you provided shows the key transistors as Q1 and Q2. In the text you refer to Q208 and Q209 (which I think are marked on the board). From the description, I think Q1 = Q208 and Q2 = Q209. It would be nice if the schematic had the Q-numbers changed, or at least, you mentioned the equivalence in your text. (Trivial) Aren't you using an existing SMA connector for your output? So, maybe it should be black in the schematic. Your picture of the board rework is pretty low resolution; even zooming into it just gives bigger blurry image. You have added some annotations but they are in red over the green board color. Combined with the low resolution they are very hard to read. I'm pretty sure they remain in German in the English version too. My suggestions: - Edit the schematic to change the Q-numbers to match the board and text, or at least give the equivalence in the text. - Use a higher resolution picture and make the annotations more readable with different color or background shading. - The picture you provide is "after". It would be nice to also have "before". If you don't have a before picture, I or some other member could probably take one. - Consider having picture annotations in English for the English version. I think what you have done is great. I just think the sharing document could be improved to make it easier for others to duplicate. If you like, I could possibly help make a more readable annotated picture if you can provide me a higher res picture of the board. Just an offer to help if you would consider my suggestions. I think you will see my email in my post. -Rex KK6MK On 12/12/2015 4:39 PM, Jörg Logemann wrote: Hi, I worked out a modification of the Lucent GPSDO to get 10MHz out of it which I offer to the community. The article is available in english and german (attached). best 73 Joerg, DL2NI ___ 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.
