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I poped the little regulator on a Nano. I always power them now from a TO220 Big regulator. In parallel with whats in Nano? That may not be nice, but works for me? I don't use the raw input anymore.

The devil is in the details...see below: Jack, W8TEE From: Dr Fred Hambrecht <AAR4MI@...> To: [email protected] Sent: Thursday, June 1, 2017 3:02 AM Subject: Re: [BITX20] Conflicting

For me, it's a bad-habit thing. If I get used to having two power sources connected, some day, just as sure as I"m sitting here, I'm going to plug in two power sources and get a min-Fourth of July

This is the info I have found for wiring up the mic , any info on how you wired up would be great! Thanks? 73 Chris VA7XZZ

HI Ryan, How did this go with the HM36 mic? I bought the same one along with the 8 pin chassis mount. Do you have any advise or wiring diagrams for this? Thanks Chris VA7XZZ

In addition to both Arduino's documentation and schematic stating that running A USB and external power simultaneously is supported, there are hundreds, if not thousands, of commercial products using

Actually, I don't think it will have any effect on the computer usb port. The reason it would not harm the usb port is defined in the Arduino Nano schematic... Look at the schematic -

Thanks

I look on ebay and don't have a lot of luck with that. Hopefully someone else will have a good source. Vince - KA8CSH -- Michigan VHF Corp. http://www.nobucks.net/ http://www.CDupe.com/

Lots more info and articles here! http://www.schematicsforfree.com/archive/dir/Audio/Circuits/Dynamics+&+Gain+Control In the last 40+ years I have tried photodiode, fet, ldr and even the NE570. I

How can I get a good gt37-43, could you help me with this?

How can I get a good t50-37, could you help me with this?

According to toroids.info 8 turns on a T50-37 core is 28.16uH. To get 28.16uH on a T50-2 core you'd need 76 turns. Vince. -- Michigan VHF Corp. http://www.nobucks.net/ http://www.CDupe.com/

Thanks Bill Meara, lm386 I will check, I live in turkey, t50-2 I use thyroid, 73

Your BITX 20 board looks very nice.?? If you are hearing a whistling sound on receive, your audio amplifier might be oscillating.? Check the grounding on the LM386.? One other thing I notice from

Hi, I decided to do Bitx20, I use 10 MHz xtal, card is over and I get energy, whistling, what could be the problem.Nobin was wrapped with 8 rounds t50-2

complete link: http://www.arrl.org/files/file/QEX_Next_Issue/Sep-Oct_2010/Anderson%20Sept-Oct.pdf

I copied this link from Google, after inserting qex Audio agc the full article is named: synthesing an Audio AGC circuit Phil Andedrson W0XI published in the QEX Sept Oct 2010 Henning

that link seems to be broken...

please have a loog on www.arrl.org/files/file/QEX...Oct.../Anderson%20Sept-Oct.pdf Henning DK5LV Am 01.06.2017 um 09:58 schrieb Ashhar Farhan: