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Re: Challenge: Building a BITX on a Perf Board?
They are available from crkits.com. Likely this is a kit with all the parts. Both 7090 and 7190 will be offered.
2017年6月20日 15:29,"martin jarvis martinfilbertjarvis@... [CHINA_QRP]"
They are available from crkits.com. Likely this is a kit with all the parts. Both 7090 and 7190 will be offered.
2017年6月20日 15:29,"martin jarvis martinfilbertjarvis@... [CHINA_QRP]"
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By
Adam Rong
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#2250
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Re: Challenge: Building a BITX on a Perf Board? [1 Attachment]
very interesting - where are the DIY7 series variable inductors available from? thanks
very interesting - where are the DIY7 series variable inductors available from? thanks
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By
martin jarvis <martinfilbertjarvis@...>
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#2249
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Re: Challenge: Building a BITX on a Perf Board?
This is my 2nd KW (Knobless Wonder). I made a few changes to the layout and components. The wires are now on component side. Some toroid transformers are replaced by DIY7 series and fixed inductor. I
This is my 2nd KW (Knobless Wonder). I made a few changes to the layout and components. The wires are now on component side. Some toroid transformers are replaced by DIY7 series and fixed inductor. I
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By
Adam Rong
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#2248
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Re: Challenge: Building a BITX on a Perf Board?
---In CHINA_QRP@..., <rongxh@...> wrote :
> Let’s do 7190. It will be an international frequency and it is also okay for US technician class.
Seems like a good choice.
> I suppose nobody like
---In CHINA_QRP@..., <rongxh@...> wrote :
> Let’s do 7190. It will be an international frequency and it is also okay for US technician class.
Seems like a good choice.
> I suppose nobody like
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By
AA7US
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#2247
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Re: Challenge: Building a BITX on a Perf Board?
Good morning from Rio de Janeiro.
Most of 40 meters voice activity in PY land (Brasil) is concentrated around 7060 to 7100.
73
PY1AHD ALEX
Alexandre Grimbeg
Em 18/06/2017 07:22, Adam Rong
Good morning from Rio de Janeiro.
Most of 40 meters voice activity in PY land (Brasil) is concentrated around 7060 to 7100.
73
PY1AHD ALEX
Alexandre Grimbeg
Em 18/06/2017 07:22, Adam Rong
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By
py1ahd
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#2246
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Re: Challenge: Building a BITX on a Perf Board?
Let’s do 7190. It will be an international frequency and it is also okay for US technician class. I will start to customize a crystal. It would take about 3 weeks if everything goes well. The first
Let’s do 7190. It will be an international frequency and it is also okay for US technician class. I will start to customize a crystal. It would take about 3 weeks if everything goes well. The first
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By
Adam Rong
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#2245
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Re: Video about Choc Perf Board
Yes, i would like to see underside too pla...are the boards available to order and what is price/shipping? Thanks
Yes, i would like to see underside too pla...are the boards available to order and what is price/shipping? Thanks
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By
martin jarvis <martinfilbertjarvis@...>
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#2243
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Re: Challenge: Building a BITX on a Perf Board?
Hi Adam,
This is an another great kit to the QRP community!
The single frequency Knobless Wonder is SSB version of the popular CRK-10A.
I hope the chocolate board and parts will be provided.
Your
Hi Adam,
This is an another great kit to the QRP community!
The single frequency Knobless Wonder is SSB version of the popular CRK-10A.
I hope the chocolate board and parts will be provided.
Your
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By
qrpjl1kra
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#2244
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Re: Video about Choc Perf Board
Very nice Adam.
It's like solving a puzzle to get everything located and connected just right.
Great job... I like it!
73,
John
AA7US
---In CHINA_QRP@..., <rongxh@...> wrote :
Thanks for the interest,
Very nice Adam.
It's like solving a puzzle to get everything located and connected just right.
Great job... I like it!
73,
John
AA7US
---In CHINA_QRP@..., <rongxh@...> wrote :
Thanks for the interest,
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By
AA7US
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#2242
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Re: Video about Choc Perf Board
Thanks for the interest, John. Here is the bottom side of the Choc Perf Board built Knobless Wonder.
In most cases, for example, like the bi-directional amplifiers, we don't need to add any
Thanks for the interest, John. Here is the bottom side of the Choc Perf Board built Knobless Wonder.
In most cases, for example, like the bi-directional amplifiers, we don't need to add any
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By
Adam Rong
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#2241
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Re: Video about Choc Perf Board
Thanks Adam. Very interesting build.
I'd like to see the underside of the perf boards to see how you make the connections.
73,
John
AA7US
---In CHINA_QRP@..., <rongxh@...> wrote :
Folks,
Just
Thanks Adam. Very interesting build.
I'd like to see the underside of the perf boards to see how you make the connections.
73,
John
AA7US
---In CHINA_QRP@..., <rongxh@...> wrote :
Folks,
Just
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By
AA7US
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#2240
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Video about Choc Perf Board
Folks,
Just uploaded a video about CHOC PERF BOARD. We took BITX and Knobless Wonder as examples.
https://www.youtube.com/watch?v=-bHG0431y00
Thanks,
Adam
Folks,
Just uploaded a video about CHOC PERF BOARD. We took BITX and Knobless Wonder as examples.
https://www.youtube.com/watch?v=-bHG0431y00
Thanks,
Adam
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By
Adam Rong
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#2239
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Re: Challenge: Building a BITX on a Perf Board?
I am happy to announce that my transmitter is working at a bit more than 2 watt @ 12 volt. I tried everything, even I found a possible issue of the transformer at the driver stage. Now it is working
I am happy to announce that my transmitter is working at a bit more than 2 watt @ 12 volt. I tried everything, even I found a possible issue of the transformer at the driver stage. Now it is working
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By
Adam Rong
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#2238
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Re: Challenge: Building a BITX on a Perf Board?
This is the kit under testing. I tried everything but not yet successful. When PTT is pressed, I can observe about 0.4 watt PEP output, but no more after the PTT pressing. It seems
This is the kit under testing. I tried everything but not yet successful. When PTT is pressed, I can observe about 0.4 watt PEP output, but no more after the PTT pressing. It seems
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By
Adam Rong
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#2237
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Re: Adam Rong's Website?
It is back. My web hosting company recently upgraded their system and it automatically replaced one of my file. Now it is all good. Thanks guys.
I will post more new products
It is back. My web hosting company recently upgraded their system and it automatically replaced one of my file. Now it is all good. Thanks guys.
I will post more new products
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By
Adam Rong
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#2236
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Re: Adam Rong's Website?
Thanks guys. Never mind. I already reported the issue to my web hosting company.
2017年6月15日 12:45,"martin jarvis martinfilbertjarvis@... [CHINA_QRP]" <CHINA_QRP@...>写道:
Thanks guys. Never mind. I already reported the issue to my web hosting company.
2017年6月15日 12:45,"martin jarvis martinfilbertjarvis@... [CHINA_QRP]" <CHINA_QRP@...>写道:
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By
Adam Rong
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#2235
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Re: Adam Rong's Website?
BLANK HERE ALSO IN NJBOB AF2DX
BLANK HERE ALSO IN NJBOB AF2DX
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By
pileupjunkie
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#2234
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Re: Adam Rong's Website?
Yes blank here too
By
martin jarvis <martinfilbertjarvis@...>
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#2233
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Re: Adam Rong's Website?
Thanks guys. I will check out.
2017年6月15日 11:03,"Larry Lovell larry.lovell@... [CHINA_QRP]" <CHINA_QRP@...>写道:
Thanks guys. I will check out.
2017年6月15日 11:03,"Larry Lovell larry.lovell@... [CHINA_QRP]" <CHINA_QRP@...>写道:
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By
Adam Rong
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#2232
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Re: Adam Rong's Website?
It seems to have been blank for a couple of days. I thought that Adam might be updating it.
It seems to have been blank for a couple of days. I thought that Adam might be updating it.
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By
n7rgw
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#2231
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