Aviation Headset Power Supply
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Alternative PSU / case for David Clark noise cancelling conversion
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- Electronics
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- Creative Commons — Attribution — Noncommercial
OK, this is a bit niche. I had converted my David Clark headset to incluce active noise cancelling with a kit from here
https://www.aviationheadsets.co.uk/noise-cancelling-conversions/
It comes with a simple box/switch containing a 9v battery. I wanted to create a new case to be able to use a rechargable battery with much higher capacity. The 9v is sent directly to the headset.
The new case contains a 2 boards from aliexpress
- UPS board which takes care of charging the 18650 battery, and stepping the 3.8v up to 9v
https://www.aliexpress.com/item/1005005714456736.html (be sure to get version with 9v output). Only the module is needed. I originally bought the one with battery holder, and unsoldered it.
- Single cell lithium battery voltage display
https://www.aliexpress.com/item/1005005631263938.html (single cell version)
The DC socket is 5.5mm x 2.1mm lockable, I bought this (but only used the socket)
https://www.ebay.co.uk/itm/314756637852
The push button switch to test the voltage
https://www.aliexpress.com/item/1005001644121542.html
The rocker switch to turn on the UPS
https://www.aliexpress.com/item/1005005559022429.html (type S130, 10mm x 15mm)