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I got mine yesterday also,? ordered 2/17.? I looked and I too have the WX chip.? I plan on doing the 7509 regulator SMD MOD as it's an almost drop on the board fix. -- John NQ3RP

Very nice job, congratulations! 73 de OA4CKN

wb7dmx, Bobby You take a peek at Jack Purdum's Second Edition, Beginning C for the Arduino. I am finding it interesting,. Terry - KB8AMZ Brimfield Twp, OH Linux User#412308, Ubuntu User #34905 OSs:

I just ordered that same box... Reminds me of Heathkit cabinet color... Like minds think alike...

Looks like I got the WX opamp.? Guess I'll have to figure out the regulator mod.?? ? I included the serial number as reference.? Can't wait to get it together and make a few contacts.

-Justin N2TOH

Or any NPN Transistor for that matter? BD139s were used in other transmitters. HG Semiconductor makes 2sc2078s, 2sc1969s, 2sc2312s, MRF477, & other obsolete rf transistors. I have a few of the

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:* uBITX_Programmers_Reference.pdf *Uploaded By:* Jim

Ordered uBITX on 12th Jan, notified of shipping on 8th March, delivered to UK via Indiapost with no surcharges on 15th March.

Hidehiko Thanks for your feeed back. The CW Start Delay Option was incorrectly applied to the new key logic. Originally, this feature was created for people using external linear, and no bugs were

I've built the ubitx and now experimenting about CW mode with dummy load. I set the iambic key and it worked well but I found that the start of dot or dah was broken, not a full code when TX. I set

The startup frequency is the VFO A frequency. To set the VFO A, you have to just switch to VFO B and back. - g

No, but 2 pi r.

You can find links to firmware options from the ubitx.net homepage. -- Mike Woods mhwoods@...

Why not 2SC2078??? ?Classic design, cheaper ?and the same pinout as IRF.

See, this is why I posted. I know I'm in over my head. I don't fully understand the crystal filter and where its passband is positioned. You just gave me good information though, so thank you. And

Ordered 4th Jan Acknowledged. 7th Jan Delivery advice 7th March Delivered 15th March Numbered 288/3, ?3rd batch Complete with WX chip !!! Otherwise looks good Looking fwd to assembly. John

Hello. What is the easiest Bitx/mBitx as project for high school kids? 73 Mike 4X1LM

A good way to compare switcher FET's for how hard it will be to drive them at RF frequencies is the total gate charge in nano-Coulombs. IRF510:? 8.3 nC IRF530;? 26 nC MTP3055E: 15 nC The uBitx

I got mine from Ebay Link (