Re: Ordered my March 2023 Buildathon's updated Sea Sprite+ kit with coupler, key, and Zepp - I have comments and questions
Hello John,I am learning via Long Island CW Club.? I recommend the club for CW newbies.? They have 1-hour zoom meetings where you can see and hear other hams - CW students - learning the code.?
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Daniel KK4MRN <SQLDan2000@...>
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#426
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Re: TTT EZ-build
Chuck,
It may have tweeked back. A previous power reading was .56 watts which matches.
That calls into question the accuracy of the watt meter at low values. Have to set up some standard tests maybe
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John Putnum, AC9UV
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#425
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Re: Ordered my March 2023 Buildathon's updated Sea Sprite+ kit with coupler, key, and Zepp - I have comments and questions
Daniel,
I built the Sea Sprite a few weeks ago. Nice build, clean harmonics. Power about .54w as measured on one of my wattmeters.
I have register for the buildathon and ordered the kit.
I will have
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John Putnum, AC9UV
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#424
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Re: TTT EZ-build
John,
Your scope indicates an Vrms value of 5.14V. If you trust the accuracy of the scope, the power would be 528mW.
When dialed up it showed .74w into a 50 ohm dummy.
Enjoy,
---John AC9UV
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Chuck Carpenter <w5usj@...>
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#420
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Ordered my March 2023 Buildathon's updated Sea Sprite+ kit with coupler, key, and Zepp - I have comments and questions
Hello,
By the way, I ordered the March 2023 Buildathon's Sea Sprite+ kit.? ?I still need to register for the event though.
I have some comments and questions on down.
Has anybody else ordered
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Daniel KK4MRN <SQLDan2000@...>
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#419
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Re: TTT EZ-build
John,
Very nice.? Thanks for showing us the screen shots.? It is an inspiration for others.
I like the nice sine wave.? My TTT has 2 peaks. Another ham suggested I use the pot to turn down my
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Daniel KK4MRN <SQLDan2000@...>
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#418
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TTT EZ-build
Group,
I played around with my TT EZ-build and replaced the final with a 2n2222a in a T0-18 case with a heat sink. I think I had the original transistor in wrong so got a much smaller output.
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John Putnum, AC9UV
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#417
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Re: NEAT tool..
$11.? That is a good deal.
I have a Radio Shack desoldering iron I got years ago.? I used it last Saturday to desolder pins I put in the wrong place.? And get rid of excess solder that dropped
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Daniel KK4MRN <SQLDan2000@...>
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#415
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Re: NEAT tool..
Gangue,
I forgot to mention that on their de-soldering page, they have replacement tips for that tool. Pretty cheap. I added some of those to my order. I always like to stash away any specialty items
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Rex Harper
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#414
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Re: NEAT tool..
Rex,
Thanks, order in. I have a nice little solder sucker that is from Japan that works well but the timing of lifting solder and positioning the tip has always been a source of humor.
---John
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John Putnum, AC9UV
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#413
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NEAT tool..
Gangue,
I just discovered this tool a couple of days ago...
https://www.mpja.com/40-Watt-Desoldering-Iron/productinfo/16922+TL/
It is a de-soldering iron which is a 40watt soldering iron with build
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Rex Harper
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#412
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Re: QSO Today BUILDATHON KIT (#9) SST+ on Mar 25 2023
Presentation at the Buildathon on March 25, 2023:
Build a Simple Station and GOTA (Get On The Air!)
Speaker: Rex Harper
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Daniel KK4MRN <SQLDan2000@...>
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#407
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Errors can conspire together
subscripts or superscripts here.
The standard way to indicate exponentiation when all you can do is type in a straight line is this: a^b means a raised to the b power. So you want 10^x.
It's
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David Ryeburn
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#402
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Re: My Two Tinned Tunas EZBuild - Transmit Issue
Daniel,
OK lets take your problems 1x1......
Congrats again... looks like you have narrowed your problem down to the final or output filter...
OK. Nothing where? Did you check the output of the
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Rex Harper
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#397
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Re: My Two Tinned Tunas EZBuild - Transmit Issue
Daniel--
Are you using a x10 probe?? Also, I'd try adjusting the power pot down and see if it cleans up.??
-HRS
H. Russell Smith, N0QLT???
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Russell Smith
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#396
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QSO Today BUILDATHON KIT (#9) SST+ on Mar 25 2023
Hello all,
Rex updated the QRPme web site the other day to include to the following link:
QSO Today BUILDATHON KIT (#9) SST+ on Mar 25 2023
$45
https://qrpme.com/?p=product&id=QSO9
QSO Today Virtual
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Daniel KK4MRN <SQLDan2000@...>
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#395
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Re: My Two Tinned Tunas EZBuild - Transmit Issue
Hello Russel,
Not sure why this topic morphed into something else.? I am still trying to fix my radio. There is improvement.
I am getting a signal on my oscilloscope now while the rf output goes
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Daniel KK4MRN <SQLDan2000@...>
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#394
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Re: My Two Tinned Tunas EZBuild - Transmit Issue
Rex,
Thanks for the info. I ordered a few 2n2222a with T018 cases and some heat sinks for them. When I have a chance I'll try them out.
I have a few alternative analog SWR/Power meters built and
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John Putnum, AC9UV
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#393
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Re: My Two Tinned Tunas EZBuild - Transmit Issue
Gangue,
From the very beginning of QRPme kitting, I have included a SIP socket in my kits for not only using as a crystal socket but also as a transistor socket for the final transistor. Easily
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Rex Harper
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#392
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Re: My Two Tinned Tunas EZBuild - Transmit Issue
I hear what Rex is saying and kind of agree. I always say 'in region of' or 'about' / 'around' when I'm quoting measurements as most of my test gear is not factory grade or calibrated.
I've known my
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Colin Evans M1BUU
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#389
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