Julian’s electronics postbag: #140 – new ebay stuff
JLCPCB Prototype for $2(Any Color): https://jlcpcb.com Grey and yellow envelopes from China. eBay links: 3S-10S-17S Li-ion Lifepo4 LTO Battery Equalizer…
What does rectified audio sound like?
JLCPCB Prototype for $2(Any Color): https://jlcpcb.com Music put through a precision rectifier - what does that sound like?
Inside some usb led light strips
JLCPCB Prototype for $2(Any Color): https://jlcpcb.com Who doesn't love things with LEDs and a USB plug? I can't be sure…
New pcbs from jlcpcb – i’ve now done all 6 colours
JLCPCB Prototype for $2(Any Color): https://jlcpcb.com A white PCB to distribute power to 14 other boards. A green PCB to…
Building a 4s2p lithium ion 18650 battery with vruzend 1.6
JLCPCB Prototype for $2(Any Color): https://jlcpcb.com My biggest 18650 lithium battery pack using the Vruzend 1.6 system. Assembly can be…
First look: vruzend 1.6 lithium ion 18650 battery system
JLCPCB Prototype for $2(Any Color): https://jlcpcb.com Building a simple 4S1P lithium ion pack using the Vruzend 1.6 battery building kit.…
Julian’s electronics postbag: #139 – led voltmeters and cables
More electronics stuff in envelopes to take my projects forward - plus the inevitable fail purchase. 90 Degree Right Angled…
Active cell balancer for lithium ion battery packs
JLCPCB Prototype for $2(Any Color): https://jlcpcb.com Very clever active cell balancer for lithium-ion battery packs, which can transfer energy from…
New pcb from jlcpcb – analog filter circuit – vocoder
JLCPCB Prototype for $2(Any Color): https://jlcpcb.com Analog filter board with lots of intrigue. Is this connector really 3.96mm, or is…