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I did not see a picture? Here is a signal generator made with ArduinoX, an Encoder, and BNC out. I set it from 100KHz to 30MHz. 3D printed Knob a Bezel. Probably less than $50. Mike, WA6ISP

Mike: This is a picture of the signal generator we're doing for our next club build. It covers 100Hz-30MHz and uses a touch screen interface. Al Peter designed it and laid out the PCB for it. It

Regarding version 2: I am using amunters v14.? The frequency changes happen(ed) as the radio moves from rx to tx, and back from tx to rx.? During TX there is no change, it is only as you keydown

Do try it if you feel so inclined. ?Should work. ?Though I'm inclined to mess with either pin 1 or pin 7, as that avoids the cap discharge you mention, and is useful in other situations beyond the

That's pretty much what Gian started out with. Gian was pulling pin 7 high, the article says hi or lo works. As I say, lots of others seem to be finding that grounding pin 7 (or tying it to VCC)

Jack, I miss one encoder switch level. At my display the text from "SW3" always is the last text that was shown at the bottom. 73 de Matt

why do we not just use a transistor to shunt pin 5 to ground when TX is high? Since the 386 will be disabled and only running on capacitors there shouldn't be too much energy to move.

Sorry they sold out quite fast. ________________________________ Sent: Tuesday, August 1, 2017 10:18 AM To: [email protected] Subject: Re: [BITX20] AGC boards are in Would like one if possible Kind

Take a look here: http://la3za.blogspot.com.au/2003/04/using-pin-7-of-lm386-to-reduce-bci-and.html Figure 2 shows how to mute the LM386 by grounding pin 7 and feeding pin 6 thru a resistor (10-100

For those wanting a Raduino board. There is a better option than the orginal Raduino board with it Soldered - in Nano. RaduinoX PCB designed to add some features. I have Lots of Bare PCBs and some

Assume an input voltage of 0.1v at pin 3. ?Current through the 50k resistor to ground would be 0.1/50000, and assuming a beta of 100 on those two PNP's the maximum current sucked away from pin 1

Hi Jerry, thanks for your report and data. Yes, 1.35K. Your worry about the transistor driving the push-pull maybe right. KC8WBK has moved from pin 7 to pin 1 and it seems to be working OK. The

Hi, thanks for the update on using pin 1. I am glad and it is like I was expecting. 73 Gian I7SWX

Driving pin 1 to 12v does indeed put about 8ma through the pnp's on the pin 2 side. More worrisome, nothing much limits the current through the pnp's on the pin 3 side. Driving pin 1 to something

1. The most general purpose board is from www.qrp-labs.com. I use it all the time for my new projects 2. You use the Raduino board. it comes with the new bitx40 or you can order one from hfsigs. 3.

John, thanks for your reply and technical knowledge. Appreciate the info concerning the different voltage regulators.

Hi to all. ?any thoughts/remarks/recommendations for the SI5351 VFO/BFO? 73 Mike ?4X1LM

Would like one if possible Kind regards Gary M0OTL

He's got you mixed up with Dan and his AGC boards. Vince.

I had a knob that matched the others I was using except the hole for the shaft was too small - just the opposite as everyone else was dealing with. I put it on the lathe and bored it out to the