开云体育

The AMSRO1-7805 does 36V, the VXO7805 does 36V as well unless you set it up for -5V output (not what we want here.) These are a PC board with parts attached to make a switching module, they're not

Mark, do the new replacement 7805's also have a max input voltage of 35V or is it capable of higher voltage? Also, are they in the same package? Bob — KK5R ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Mark

This is SPAM that needs to be blocked...

FYI I used an LM2596 dc to dc converter to drop the 13.8 vdc from P1 to 5vdc It’s rated to 3a. I use it to feed my TDA 2030a audio amp, my SSM 2167 mic preamp/compressor and theRaduino ?board. I

To get an efficient 12V to 5V regulator, you can look at the 7805 equivalent modules like the AMSRO1-7805 or the VXO7805, these are switching regulators so they are efficient but noisy so you might

(Resending because when I reported that obvious SPAM about the 27 mil or whatever funds, I was auto-kicked from the group?! Weirdness. Very sorry if this is a repeat but guessing that my post was lost

Bora, You have an incorrect file loaded for the v6 board.? The correct version is in the attached zip file on GitHub: https://github.com/phdlee/ubitx/releases/tag/v1.20 The uBITXV5 folder has the

Hi all, I use UBITX_CEC_V1.1_NX. hex for V6. But I can't found open code. My BFO fabrication setting 11.996.850Mhz. But I need an 11.050.00Mhz fabrication setting because of my SSB ladder filter

I would bet it was a kit. And almost all of those radios used 01A tubes or the equivalent. Sent: Saturday, July 11, 2020 7:08 AM To: [email protected] Subject: Re: [BITX20] The 1926 ?bitx of my great

Hi Gerard I would like to echo Michael's comment about pulling apart an ANTIQUE receiver that looks to be relatively whole. Your Grandfather's old wireless receiver would go well in the collection at

Restore that fantastic piece of history. It would be a shame not to restore it and make it work. Just my 2 cents.

Hate to see you destroy that piece of history for just the capacitors… Sent: Friday, July 10, 2020 1:27 PM To: [email protected] Subject: [BITX20] The 1926 ?bitx of my great father Hello, Seriously,

I only have access to one of my calibrations for a v4.? It was 175000. 73 Evan AC9TU

quiet severe!

hello, Here you can see a sides of my printed circuit board. I modified for the Ardino power supply (10 ohm resistance + capacitors. For the power supply of the Nextion, it can be done directly on the

Hello, Seriously, I found this old TSF, and the variable capacitors will serve me for an antenna loop. I’m still working on my own construction of ?Bitx where I can go from A to Z. The power supply

Thank you Gentlemen! I am now able to tune in strong local AM stations.? I went back to the BFO tuning tool and watched Ashhar YouTube.? I was not believing the tuning adjustment coming in around

I remember reading in an old spec sheet for a three-terminal regular that the operating voltage of the regulator was three volts. This no doubt depends largely on the design of the regulator but 3-4

Back in the days of the Commodore 64, there was a recurring problem with the main power connection pin on the board having a hairline crack in the solder joint. All that needed to be done was reheat

Keep all leads short or be prepared to add large and small caps at each end of the long leads because voltages can build up across stray inductance caused to long leads. Like a 10 MFD and a 0.1 disc