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On Sat, Jun 23, 2018 at 11:09 am, Don, ND6T wrote: > > OK, I just did the same test. Brand new, just out of the box, 12.5 volt > source. I get 61.5 milliamps. De-power. Unplug the display. I get 40.8

Joel, The first thing I would do is find the trace you burnt on the schematic. Then I would look at the steps that you took to install the mod and see if/how they are related. Let us know what you

No worries, Joel! Although I am sorry that it happened. The trace appears at first glance to be the TX trace. If it were cut in the wrong place and jumpered to the +12 volt bus then you were probably

Easy enough to foul up like that, I've done worse. More than once. Well worth an hour or two of trying to chase this down. I'd expect it to be repairable. The trace you burned is the TX +12v rail. My

If you decide not to fix it I will buy it from you. 73 Dick Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10 ________________________________ Sent: Saturday, June 23, 2018

I forgot to mention that the board smoked when I pushed the PTT, it was working sort of until I did that. Joel N6ALT

Remi, OK, I just did the same test. Brand new, just out of the box, 12.5 volt source. I get 61.5 milliamps. De-power. Unplug the display. I get 40.8 milliamps when repowered. -Don

Unplug the display. Then how much does the main Raduino board draw? I measured mine (crudely though, at the bottom end of my power supply's ammeter) at 60ma. Verify that the voltage out of the LM7805

I debated on whether I would admit to being this stupid to the group, but while fitting the click fix board to my perfectly working uBitx all mounted in a custom enclosure, I vaporized a trace on the

tnx don, larry, jerry My raduino alone (now, it was more yesterday) consume 230mA on a 12V battery

SolderSmoke #205 Solstice, Mars, Antennas, Displays, Phasing Fix, VFOs, Lexicon, MAILBAG | | | | | | | | | | | SolderSmoke #205 Solstice, Mars, Antennas, Displays, Phasing Fix, VFOs, ... Radio

If I just power up my raduino it draws about 100ma. nothing else connected, the display works, backlight is on. Without the display, more like 60ma.? Most of that is probably backlight.

Will I have been thinking along the same path and right now it is in the noodling/research stage. I need to get spice on my computer to do some modeling. Skip Davis, NC9O

Some of the clones are going for the lowest possible price, and fab/qc is as cheap as possible. They work well enough for some applications when powered from 5 or 6v. But depending on where that die

Remi F1MQJ- If power consumption is a problem, there are regulator boards that can be had/made that use a torrid to buck-boost the voltage. Much higher in efficiency than a 7805. I have heard a claim

Hi! Farhan and others, I feel spurii are result of the first mixer being over driven by a large margin. A rough estimate indicates that the 45MHz input to the? 1st mixer is in vicinity of 0 to +1

It appears that there are multiple versions of the TA2822 audio amplifier, by several different manufacturers. http://www.alldatasheet.com/view.jsp?Searchword=TDA2822M Some are rated 3V to 15 or 16V

Ian, First, thank you for the time and effort you have put into this radio and now, a truly nice display to go with it. ? I'm new to Arduino but your tutorials and instruction allowed me to upload

Let me try again.

Here is the Google Translate URL for the article.