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Hi Dexter,? Which version of Gian's schematic were you changing? My add-in board with his mod is currently at "Trial 5." Whatever you suggest, I will try tomorrow after work. I want to remove this

Hi Jonathan Read later entries here - search on Gian's call or "PTT". My contribution: Gian's circuit except wire to pin 7 goes to pin 3. Try it, you'll like it. 73 de ZL2DEX ...

Buonasera Gian, I did not have any luck with this mod. While I tried the previous versions as well, the clicks remain throughout testing. I did get the LM386 to mute properly by using a modified

R136 is "drive level". Over-driving can produce distortion at the driver stage (cause of "barely intelligible audio", likely mistaken as FMing?), and if it continues can burn out the driver's emitter

Thank you Giuseppe, I will have a look at the code and see if I can make it work for me. -- Mike VK3XL

I had similar audio reports on a BITX40 kit.? What I believe fixed the problem was to adjust R136.? If you can find the comparable variable resistor on your kit, it may help. It is at the base of

The BitX40 with no mods is ready to be powered...except for the microphone. Today I worked on the PTT bar. A parallel pair of switches should take care of me pushing on one end of the bar or the other

A 1206 surface mount resistor like that is typically rated for 1/4 watt. ?Might seem high, as a 1/4 watt axial lead resistor is considerably larger. ?But the 1206 can can better dump heat into the

I have a Hendrix kit built Bit-x 20 (assembled myself) and after about a year of playing with it, finally started making contacts. It has the 10K pot mod instead of a tuning cap. and tunes from 3.152

BITX QSO Night, Sunday, August 20, 7pm Local Time, 7277 kHz in North America, 7177 kHz elsewhere Join us as we make contacts from BITX40 to BITX40 on 7.277 MHz in 40 meters! To participate, call CQ

Soundar VU2RJW wrote… Thank you very much for posting that! As I mentioned previously I had already replaced Q15 and then Q13 before seeing your post. I took a close look at R141 and it did look

Yes gentlemen; checking resistor R141 to be 10 ohms, is one of the first things that I did and it checked okay.? Please keep the trouble shooting ideas coming, I really would like to get this BITX-40

Karl KO8S wrote… Thanks to Soundar VU2RJW, I looked at the 10 ohm R141 and found it had gone to a higher resistance. I replaced it and I'm back on the air again. I was just about to post a note

Do check R141 with that VOM, see if it is still 10 ohms. ?It runs awfully hot, have had several reports of it burning out. I recorded AC measurements with a scope here:

I am trying to trouble shoot low power output on my friends BITX-40 that he built a couple months ago (latest version?) with a VOM after he lost full power.? It now, barely, moves a low range watt

I think I found it... and as they say, the check's in the mail (via paypal!) 73 mike, wb8vge

Soundar VU2RJW wrote... Thanks for posting that. I just checked R141. According to the drawing, it should be 10 ohms. I'm measuring almost 60 ohms there. It won't be surface mount, but I'll see if I

On Wed, Aug 9, 2017 at 06:15 am, Jack Purdum wrote: Is this the correct email, Jack > > econjack@...

The menu (function) button won't do much with the stock code. It is really only used for calibration. Most features using the function button rely on Allard's code. This image (from Allard's github

Alan, It's not about conspiracy or paranoia, it's simply that some people are seeing obscured e-mail addresses in the text of messages, and other people are not.?This appears to be a 'feature' in