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Roy, shipped on 12/13/16 TonyF

If one plans to run from LiFe2O4, there's no need to do anything different than when one runs lead acid. Minimum cell voltage is 2.1VDC, Ultimate max is about 4.1V, but for long life most folks

* Hello Raj I was able to adjust the 50 mA finally, I was measuring in the wrong place but with your help I hit the point. Thank you.* * Jorge* 2017-01-05 11:11 GMT-02:00 Raj vu2zap@...

Lots of IRF510's in RF amps running at 24v out there in the world. That is on somewhat thin ice if not driving into 50 ohms. On the other hand, they are really cheap. Originally aimed at the

W5KUB,con Chat with Ashar Farhan <https://youtu.be/2_BPq5E5MlA?t=1513> Round table where Ashar Farhan talks about the BitX40 and all things BitX Ashar my friend you are looking a little tired? Take

For mountaineering or glacier travel it's better to modify with 2SC1969 or RD16HHF1 @12 Volt... 'Repair & Reuse or Recycle E-Waste' BITX20@...> wrote:

Watch out. Your peak transmitted signal cannot exceed the maximum voltage rating of the transistors. I would be very hesitant of going beyond more than 14-15v. input DC. For the IRF510, that would be

little red faced lol its late here and have been on the go for 17 hours and counting :)

You can access this file at the URL: https://groups.yahoo.com/neo/groups/BITX20/files/LED%20for%20BITX.jpg Sent: Thursday, January 05, 2017 2:41 PM To: BITX20@... Subject: RE: [BITX20]

Go to yahoo page for photo Sent: Thursday, January 05, 2017 2:36 PM To: BITX20@... Subject: [BITX20] Re: LED for XMIT indication why can i not see the photo ???

BITX20@...> wrote:

Peter, Any idea if this failure might have occurred due to a nearby transmitter while the Bitx was connected to an antenna? Jerry ---In BITX20@..., <parkerp@...> wrote : A

I'm using LiFePO4 and it's a drop-in replacement for lead-acid (4x cells at 3.3V nominal; use lead-acid voltages - 10V minimum; 13.8V max.). LiCo/LiMn could be a bit more challenging as they carry

Using the Raduino, the LD78L09 is no longer needed for VFO stability, so you can likely go below your 10.7v Will lose dynamic range in those bidi amps as you get too low, but I wouldn't be surprised

Hi folks, I'm hoping to turn my BitX40 into a portable unit I can use for lightweight SOTA, particularly longer missions involving mountaineering or glacier travel. Ideally I would not use a SLAB

Billy C-103 is a capacitor, not a potentiometer, and is not needed for an un-modified BITX-40v3. You would only need this and related components if you want to fine-tune BFO offset for LSB or want to

Waiting for mine to arrive, still on a plane if i trust the tracking number :) -- 73, Paulo CS7AGH A.R.L.A. #100 / DMC #08386 / EPC #25379 / Field Radio Operator #IFR212 / Portuguese QRP Radio

Sometimes, the box "makes" the project! BITX20@...> wrote:

I know my one uses Adafruit_TFTLCD.h and Adafruit_GFX.h but i will have to try next week when i am home the mcufriend Arduino library and see if it will work it looks identical to this 240x320

Hi Martin: I have submitted an article based on the same VFO/TFT display to QST for publication...no word yet. It's actually an antenna analyzer, but the VFO and TFT work the same way. I'm also