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Old 20th August 2016, 03:30 PM   #1
diyAudio Member
tiefbassuebertr's Avatar
Join Date: Jul 2005
Location: D-55629 Schwarzerden
Default Helium Bluetooth Speakers Powered by Supercapacitors

Who have heard this boombox ?
Helium Bluetooth speakers powered by supercapacitors - Images
In use seems to be follow devices:
1) Fostex FE103E or FE126E
Maxwell 2000F 2 7V Battery Back Up Capacitor K2 Series Ultracapacitors Boostcap | eBay
3) class-D amp with integrated bluetooth receiver
New TPA3116 Bluetooth Amplifier Board Class D 50W 2 Amp Board CSR4 0 | eBay
or single bluetooth receiver without integrated amp and single stereo class-A/B amp
New KRC 86B Bluetooth 4 0 Stereo Audio Receiver Module Board DIY | eBay
100W Single Channel Mono Audio Amp TDA7293 Amplifier Board HiFi AC12 32V | eBay
4) Charger similar like LTM8026 for Maxwell ULTRACAPACITORS, BC SERIES
Who have heard the above mantioned boombox?
Are there already diy projects realized in this kind ?
Thank you for advices.

Last edited by tiefbassuebertr; 20th August 2016 at 03:35 PM.
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