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Using 680 ohms will really make the LED bright.? I = (12V - 3.3V ) / 680.? Most work real nice on just a few ma.? 2.2K should give nearly 5 ma.? What folks are saying is an LED is not "operated"

Complete basic electrics, Ben. An LED is a *current-driven* device. You can use *any* Voltage to feed it, so long as you limit the *Current*. You do this with a resistor. Here you use basic arithmetic

So I can tap the wires from K1 and then use a voltage divider circuit to drop it to 3.3volts right? Ben Kd2nou

You can use a dual color LED with 3 leads, centre is common gnd. I have used a standard 3mm LED , you can also use 5 mm if you need, but the 3 mm is quite Ok The 680 ohms is the dropping and current

Thank you VU2POP. Is the yellow wire for RX and the green wire for TX and then the 680 ohm resistor goes to ground? Is the LED 12 volts? I was planning on using a Red 3.3 volt LED to indicate TX and a

Hi ben See attached pics, solder 2 wires below the K1 relay as shown, then to the Dual color LED , the centre of the LED goes to ground thru a 680 Ohms restistor. Have fun happy Bitxing 73 Pop VU2POP

I tuned in late, but there was too much noise. I was using the FT-101 and the noise floor was about an S7 or S8. Vince. -- Michigan VHF Corp. http://www.nobucks.net/ http://www.CDupe.com/

Only made one contact. NX2U, Michael, in TN. Heard a few, very light, but couldn't make out the details. Kevin - NC KN4AAG

Tom, of all nights, tonight is the first night I got your call sign, when W1LY and you signed off. Shouted out to you with a 100 watts and a wire, but nothing getting out from here. Craig KM4YEC

Ok Dex...I hear you but you're never too old to try something new, eh? It's now 0313 Z and managed to work VE3RRD AL about 3 miles, VE6RAC about 1,600 miles and W1LY Wily about 787 miles. Heard WI1B

W1LY, Your 600 watts like you are sitting next to me. at 10:07 and earlier about 15 minutes ago. I dialed up 90 watts and you didn’t answer. Craig KM4YEC in east TN

I heard W1LY calling CQ on both BitX40 and IC718, but no one hearing me tonight. I can hear W1LY and hear other side a few times with out getting call sign. Time to raise the antenna. Craig KM4YEC

I'd second that for the full Raduino - with A7 (and A6) free/d, it ought to be possible with a bit of assignment juggle ... :) especially not needing/wanting CW or 'touch keyer.' Would that be a

Tom VE3THR: About 3:45pm here, 9:45pm there - I've most likely missed the chance, and nothing else to try with :( 73...

I put a resistor and a 12v LED into the TX line to my 30mm x 30mm fan which blows directly on the final heatsink. I wanted to drop the voltage to the LED and now I can see when I am in TX and that the

radiomanjwt: we're 3 hours ahead of you (daylight saving adds 1), so that's 8-9pm here. Let's see, eh? This BITX is my first foray into HF, so even this 67-year-old is a "tenderfoot", and I have

I worked Mike VE6RAC on 7178 too. I called and called on 7277 nothing heard. Nobody heard on the usual frequencies. My dx was Russ KG0BK and Gordy AA5TN both about 3 miles away. Ed W0OIC

Didn't hear much on 7277. Worked Tom VE3THR here in ON, and Ken WI1B in MA. Heard a couple of weak stations, couldn't get calls. But did work VE6RAC in Alberta with my 6W on 7178 which is now my

Hi Allard, thanks for the reply. Would it also ne possible to incorporate encoder tuning? It would be much easier to tune ig you could just push a button for hz, khz, mhz, and adjust with

Listened on 7277 tonight but didn't hear anyone...got clobbered by the BC station? on 7275. Brent