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Wonder how well, or how long, it would run on four 18650 batteries? RichKC8MWG

Thank you for the compliments Yes gave Farhan a few for his experiments HI ! OK will work out a way to send to thru any one visiting VK land Which part of VK do you live in Tnx 73 Pop Sent:

quote ==== LiFePO4 are a different animal. 3.3V nominal, they carry their energy more in the middle of their charge range (so there's not much incentive to use the top or bottom 5%), and can

Where on Facebook? Roy WA0YMH BITX20@...> wrote:

Hi Slim, I liked your oLed display. Did you developed it (the routine for VU meter, etc), or got it ready ? Do the arduino control this graphic display too ? Thanks and 73 Roney PY1ZB Em 06/01/2017

i am having the same problem and have not found a solution yet i did find this oled screen interfering with rf module? https://forum.arduino.cc/index.php?topic=438696.0 oled screen interfering

Frank, There are a number of different cells in the lithium family. Each has different voltage ranges and reactions to abuse. What most of the public call "Li-on" is the lithium cobalt

So working on converting a bitx40 to 160m . Why? Why not ? I have a 160 m inverted vee and qrp on 160 would be a good challenge for sure. I have already modified the Vfo and bypassed the receive input

Yeah, mine shipped also. I had no doubts, I just figured they were busy. Joel Caulkins KB6QVI

I received an email right after I made this post stating that the DDS has shipped. Sent: Friday, January 06, 2017 2:26 PM To: 'BITX20@...' Subject: RE: [BITX20] the arrival After a

Slim, looks great, I am using a similar display (only singular) and have also put in an S-meter, but I get terrible “clicking” from the display when it updates, I find the display is injecting

I managed to blow my final by adjusting the pace bias to high past the 100ma. Lesson learned to slowly adjust Art Sent from my iPhone

yes John is right ,but in this case you also can playing rockn roll :))))) http://www.jessystems.com/Images/20M%20SP%20XCVR/Fig%2013%20Transmitter%20Linear%20Amp%20Rv1.jpg

On the contrary. These are voltage devices, not current devices. If you put enough voltage on the gate, it will go into avalanche mode and destroy the device within milliseconds. Always start with

Yes, you monitor current into the final when setting the IRF510's bias. Ashhar's "Wire Up" notes suggest setting the bias for 100ma. Just be aware that (as I read the datasheet) the current goes

Spurious responses caused by the odd-order harmonics inherent in a square-wave local oscillator are relatively easy to eliminate with front-end filtering. What is much more difficult to eliminate is

i m finished ZIA,Belthorn,Nurig,Jabom ,pocket sized ,all transcivers by legendary Pete N6qw and use si5351 all of them and havent lpf ..do not do mistery of all....especially for

Whether a LPF at the VFO frequency lowers your noise level may or may not be noticeable, however the Si5351 outputs Square waves that are inherently high in harmonic energy which is why you need a

you must look the current ,about 50ma (witahout input signal) ..voltage is not imporant but in my case is 3,4v on gate irf 510

Indeed. From fig 1 on page 3 of the Vishay datasheet, the IRF510 might have a drain current of around 10 Amps at a Vgs of 5 Volts. That's sucking 10*12 = 120 Watts from a 12 Volt supply, and all