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NC40A T3 Secondary
By Wayne McFee · #14425 ·
Re: DC Receiver
The Colpitts board was 100 x 50? I thought it was 50 x 50. That's what I ordered anyway... Michael N6MST
By Michael Thompson · #14424 ·
DC Receiver
I got the boards for my third board layout.? So far batting a thousand. Did get scared when I built the audio section first and wasn't getting anything out but a click when I probed the input. Build
By chuck adams · #14423 ·
Re: Designs in the works
Chuck, Check out Ebay 290684255355 I just bought 80 of the BNC connectors (for my attenuator kit #13) for about $0.70 each including shipping. These have worked out well in the past and I also include
By Sandy T <windy10605@...> · #14422 ·
move to io
Please, what are hashtags and chats? Io says I have none.... J7e de John G8JMB
By John sailor <hornpipe112@...> · #14421 ·
New file uploaded to [email protected]
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the [email protected] group. *File:* NorCal40A Simplified Assembly Document by.pdf
By [email protected] Notification <qrp-tech+notification@...> · #14420 ·
Re: Designs in the works
Hard to tell for sure but it looks like a board could be designed for either, as in both so the person building the board could make the choice. 73/72 Mike WA8BXN
By Mike WA8BXN · #14419 ·
Re: Project #3 -- Comb Generator
In reply to Tony's question: "It appears that the narrower the pulses come out of these things, the more rich the harmonics. I would love to hear an explanation for any EE types out there." Here we
By drmail377 · #14418 ·
Re: Designs in the works
The problem is you can't get gerber files from their software. You are locked into them which i dont like.
By Doug Hendricks <ki6ds13@...> · #14417 ·
Re: R5 Resistor Network Substitution
Alan (and Chuck), Thank you for the clarification and the citation. I viewed Chuck's videos but that one blew right by me. I appreciate Chuck's PM last evening clarifying that as well. ..still rolling
By William <k6whp@...> · #14416 ·
Re: Designs in the works
Chuck, ......of course there is always Ebay 281859029794 at $0.18 each for non board mount BNC when you buy in qty of 100. It will require a short piece of coax. 73 Kees K5BCQ
By Sandy T <windy10605@...> · #14415 ·
Re: Designs in the works
I prefer the first one: BNC-KWE-BNC-female-nut-bulkhead-right-angle-PCB-mount-RF-connector-TSUS https://www.ebay.com/itm/112638946076 because of its better mechanical support.? The problem with that
By Jim Pruitt WA7DUY · #14414 ·
NC40A PCBs
I ordered my PCBs from ALLPCB.com last Wednesday 22 Nov. A pack of 11 arrived an hour ago. Amazing! Five days from thinking about it to delivery. Many thanks Chuck for setting this up. Last week I
By Thomas Robinson G?SBW · #14413 ·
W7EL Optimized QRP Transceiver
At the risk of repeating a frequent topic: Is there a SMD PCB available for the W7EL Xcvr? I was surprised that Far doesn't make one. Thanks, - 73, John, N0TA
By John N0TA · #14412 ·
Re: Designs in the works
IMHO,? KWE BNC female , appers foolproff? but little costlier. Perhaps you also need to see the customer's taste and choicee.?all the best sarma? / vu3zmv
By Mvs Sarma · #14411 ·
Re: j309 transistor and MVAM109 varactor
Dimitar, Maybe not... The MVAM109 data sheet shows an average capacitance range from about 500 pF at 1V to about 35 pF at 9V The BB910 is about 50 pF at 0V to 10 pF at 10V Chuck Carpenter, W5USJ
By Chuck Carpenter <w5usj@...> · #14410 ·
Re: Designs in the works
Chuck, are you aware of ExpressPCB? You chaeck them out by googling on that name. I get my pcb's made by them, and they all come out beautiful.? AND they provide (free) all the scematic-drawing and
By Bob Nelson · #14409 ·
Designs in the works
I'm working on several projects for PCB projects. Before I commit to a physical BNC, which of the following would you like better? http://tinyurl.com/y76y4w9c or http://tinyurl.com/yatzsn8j If you
By chuck adams · #14408 ·
NC-40a X5 adjustment range (anecdotal)
I am building a second board now that I have one completed using specified parts as much as possible to have a comparison standard. My current goals for this second board are to investigate crystal
By Mike WA8BXN · #14407 ·
Re: NC40A Trim pots at Tayda Electronics in USA
Go to www.TaydaElectronics.com , a Denver Colorado supplier, and select Potentiometers,Trimmers, 6mm top adjust and they have them both for only $.06 each. Hle there they also have the resistors,
By Darrel Heckendorf · #14406 ·