Re: SST-20 from Wayne Burdick, N6KR - Manhattan Circuit Construction Madness Project
Re; SST transceivers, for those considering a homebrew version: For my 20m SST, I made several worthwhile mods: 1. I added a JFET amplifier after the crystal filter feeding into the '603 product
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Walter Thomas/K3ASW
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#8918
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Re: WWV receiver
Looks like a W1AW-specific version of the venerable "Neophyte." Should be fun! --Kirk, NT0Z My book, "Stealth Amateur Radio," is now available from www.stealthamateur.com and on the Amazon Kindle
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Kirk Kleinschmidt, NT0Z
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#8917
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Re: SST-20 from Wayne Burdick, N6KR - Manhattan Circuit Construction Madness Project
Daniel The output power depends upon bias voltage and the impedance presented to the output of the final. If this transistor directly feeds the low pass filter, at 12-13 volt bias it will provide 1.5
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Curt
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#8916
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Re: SST-20 from Wayne Burdick, N6KR - Manhattan Circuit Construction Madness Project
I finally searched for Dave AA7EE blog site and yeah, wow - that is a beauty. https://aa7ee.wordpress.com/2016/09/09/a-scratch-build-of-n6kr-and-wilderness-radios-sst-for-20m/ Dave has a link to
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Daniel KK4MRN
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#8915
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Re: Multi-function test jig idea for homebrew radios.
Werd! Your boards look inventive! When I latched onto DipTrace* my desire to do Manhattan evaporated! From then on, it was look for projects, design, inspect, submit orders, wait, rinse & repeat. The
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k6whp
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#8914
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Re: Multi-function test jig idea for homebrew radios.
Edit.. sorry, I forgot the image. William, Here is mine I made with Kicad and made at JLCPCB. ?This was maybe 3 years ago, cheap shipping was higher then. Cost about $6 shipped for the 5 boards. 40
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wb6ogd
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#8913
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Re: SST-20 from Wayne Burdick, N6KR - Manhattan Circuit Construction Madness Project
Daniel All is well. Looking forward to you building an SST or something to your liking. Examine AA7EE projects for inspiration, I recall he describes all the details. If you build a modern SST I
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Curt
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#8911
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Re: SST-20 from Wayne Burdick, N6KR - Manhattan Circuit Construction Madness Project
Daniel - There are cheap unauthorized knock-offs of QRPGuys' designs on eBay. That is probably what you are seeing, unless you're seeing ads for people selling their genuine gear from QRPGuys. It's
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Dave AA7EE
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#8910
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Re: Multi-function test jig idea for homebrew radios.
Gary, Below is a board I ordered after a tutorial by Jim Kortge re the panelizing and scoring. Occurred about a year ago. In the PCB below, the math works out to? $4 additional for the scoring as an
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k6whp
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#8909
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Topless crystal and MUPPET tester
I wanted to add these to topics already in progress but I can't find them using my phone, how do the Youngs do this? Here is a 24.MHz crystal opened up, sorry for the 007 view but it need some
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Michael
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#8907
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Re: SST-20 from Wayne Burdick, N6KR - Manhattan Circuit Construction Madness Project
Curt, I think you and Jerry are correct that in general most do not care if hams home brew the radios of other designs and show them off.? They even encourage it.? Ashhar Farhans uBitx transceiver
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Daniel KK4MRN
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#8906
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Re: Crystal Parameter Measurements
Here is my last batch of 10.7 crystals to test. In order to make it easier for me to keep track of the little darlings I used the color code on the tops with an unused color to mark the "head". Number
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Michael
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#8905
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Re: Multi-function test jig idea for homebrew radios.
JLCPCB lets you put multiple circuits on one 100x100 panel for the super cheap price. They won't cut them apart and you can't show scribe lines(IIRC). I cut them apart with tin snips, wish I had a
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wb6ogd
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#8904
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Re: WWV receiver
Hey Mike, Yes, I'm a long time ARRL member. I'll take a look. Thanks ! Jim [email protected]> wrote:
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Jim WB4ILP
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#8903
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Re: WWV receiver
Hey Alan, Thank You Very Much ! That's it. Jim WB4ILP [email protected]> wrote:
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Jim WB4ILP
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#8902
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Re: WWV receiver
Jim: If you are an ARRL member (and therefore, a QST subscriber) there are several QST articles available via download at the ARRL site; simply do a periodical archives search at the ARRL site for
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Mike Dinolfo
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#8901
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Re: WWV receiver
Hi Jim, I found this schematic in my archives. I hope this helps. 73, Alan, N8WQ
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Alan N8WQ
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#8900
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Re: Multi-function test jig idea for homebrew radios.
I am familiar with that. ..actually, Chuck, I had wrestled with that question for several projects I did. One comes to mind: an LM386 amp board that was produced by DipTrace. After an extremely
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k6whp
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#8899
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1W PA replacement I use
<https://www.ebay.com/itm/373648941226> Being considered for the ADC replace of the BS170s that Steve loves. QRT? QRT?? dit dit
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chuck adams
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#8898
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Re: Multi-function test jig idea for homebrew radios.
I think I have bad news for you William.? In the order process, when you submit the Gerbers, an engineer on the team will inspect the board.? If it does have multiple boards, separated by regions
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chuck adams
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#8897
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