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I would not argue with you on using IRF510s... i simply choose to use real RF transistors because they typically have better characteristics for RF design work eg flatter capacitance curve vs

I have run into an issue with taking the pre-amp audio signal from Q70 and using it with an external amplifier. When I remove VOL-H (Orange wire) from the top of the volume pot and run to another

Alan, You had zero'd the RV1. Please bring it back to center and leave it there and forget it exists. Check on a loud hallow with RV1 centered. If RV1 is fully clockwise then your output will be

I have noticed that this happens when the center pin is disconnected. Raj

what is your paypal address?

Jack I changed it to 1.03 and push it to github. The modified parts are shown below. //================================================= Line Number : 1152, 1154 in ubitx_menu.ino void

Thank you Dexter, it's getting better and better all the time. I'll delay my shopping for a while :) 73! George VE7WQ Wednesday, February 21, 2018, you wrote: DNM> All above, plus ease of

masa Thanks for your suggestion. Your code work perfectly. I have been able to set the CW frequency more easily since applying your code. I added your code to CEC Firmware. In CW Mode, fixed code

Hi Jerry. No effect on amps moving RV1. 100ma each on adjustment of RV1&2 whilst pressing PTT on mic PA,Brown, supply 200 ma on PTT 12v,red, rail 250 in receive 550ma tx A loud hallllow produces no

All above, plus ease of procurement: 20 x 1000 parallel = 50 ohms, 20 x 1/2 = 10 Watts. Matrix 4x5 for least lead length.

I found them for about $200 at did you key. The 300 W version was only $72. Those are pretty competitive prices to vacuum tubes!

You really have to squeeze! (hi). I sometimes pull the plunger back to draw a little air. It seems to come out a little easier after I do that. Maybe it breaks up a clog or something. It still often

Thank you Thomas, will do, for sure. The local store got those in stock. 73! George VE7WQ Wednesday, February 21, 2018, you wrote: TSvGI> Yep, but just for fun try nine 470 ohm resistors and one

What if you replaced the diodes with an LM317? Would that be as reliable?? Sent from Yahoo Mail. Get the app

i did the hokie pokie and this jpg came out

Was that section in the code what changed it? Jack, W8TEE To: [email protected] Sent: Wednesday, February 21, 2018 5:54 PM Subject: Re: [BITX20] #ubitx Calibration resolution I finally got my

Yep, but just for fun try nine 470 ohm resistors and one 1.2 K ohm resistors in parallel. All should be 1 watt or better.? Sent from Yahoo Mail. Get the app

When replacing that IRF510, I'd just clip the old one out leaving stubs 1/8 inch long, and then solder the new one onto those stubs. Avoids ripping up the board when removing the old pins.? And very

my software, expresssch only puts out .bmp i will look at doing something about the quality asap. sorry for the poor quality. dave no changes the i can think of to rv1

Hi Jerry and thanks again,appreciated. Just taking this now in little steps. I will get back to you. Thanks Alan