(tr)uSDX Forum

The power supply connector is only slightly soldered and has started to shaking at my device.

I soldered the socket at the (tr) SDX and made a solution with cable and additional socket for the plug-in power supply. Thus, the bushing on the device is no longer loaded when the power supply is plugged in and out. In addition, I installed a bridge rectifier in the supply line to avoid false polarity too.
I know I'm losing 0.7 volts
But I don't have any problems with false polarity

Nice idea with the bridge rectifier. A simple diode would protect, too - but would not power the system with wrong polarity. And as a bridge rectifier electricity will cross 2 diodes, so you loose 1.4V

I use an adapter to Anderson PowerPoles as with all the rest of my equipment, thus there is minimal risk of wrong polarity.

Moved to general forum

Some german OMs from our 1st round asked about a matching power plug... I bought this one:

https://www.ebay.de/itm/114303730729

It is not that superb high quality one... but it fits.

73, Stephan

https://a.aliexpress.com/_vc0XkK

I use this, on the end of a standard usb-c cable, from a Pd-compatible powerbank.

USB supplies only 5 volts, this means reduced HF output power

USB-C PD can also supply higher voltages like 12V. However this requires an agreement with the end device. But there are small boards available with a push button that can be used to select the desired voltage.

https://de.aliexpress.com/item/1005001406969058.html

However I do not know about the amount of noise that is generated by the upconverter.

https://vk3yy.wordpress.com/2021/05/27 ... a-radios/

This ham has good results with a powerbank. No appreciable noise.