A video in which I open my post 🙂
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eBay links:
MECHANIC XG-Z40 10cc Syringe Solder Paste Flux Sn63/Pb37 25-45u https://www.ebay.com/itm/MECHANIC-XG-Z40-10cc-Syringe-Solder-Paste-Flux-Sn63-Pb37-25-45u-/311834953927
5/ 10pcs MR11 MR16 GU5.3 G4 Wire Connector Halogen LED Bulbs Holder Base Socket https://www.ebay.com/itm/5-10pcs-MR11-MR16-GU5-3-G4-Wire-Connector-Halogen-LED-Bulbs-Holder-Base-Socket-/132257130266
Mini 25 Tie point Breadboard Protoboard Soudure + PCB Adapter Board Pour Arduino https://www.ebay.com/itm/Mini-25-Tie-point-Breadboard-Protoboard-Soudure-PCB-Adapter-Board-Pour-Arduino-/253115045353
50pcs Ferrite Bead 8X4X3mm Toroide Core Coil Inductor Ring Cables Filter Ferrous https://www.ebay.com/itm/50pcs-Ferrite-Bead-8X4X3mm-Toroide-Core-Coil-Inductor-Ring-Cables-Filter-Ferrous-/252379560826

By Julian

Youtuber, shed dweller, solar charge controller aficionado

9 thoughts on “Julian’s electronics postbag: #114 – solder paste”
  1. Avataaar/Circle Created with python_avatars John West says:

    Basically there are 2 general types of toroid material, powdered iron, and ferrite. The characteristics of each compound determine the efficiency of the material at the frequency and current of interest.

  2. Avataaar/Circle Created with python_avatars John West says:

    Tins of rosin flux were always referred to as 'solder paste' when I was growing up. So to avoid confusion these days I always refer to solder in the form of a paste as, 'paste solder'.

  3. Avataaar/Circle Created with python_avatars DrTeeth says:

    The paste is probably thixotropic, like tomato ketchup. The more you agitate it, the fluid it becomes. I have some paste in a tub and syringes and nozzles on the way.

  4. Avataaar/Circle Created with python_avatars nimoy007 says:

    Good god, man! Just use a hot air gun!!

  5. Avataaar/Circle Created with python_avatars Gadgetboy says:

    I'm looking forward to the computer

  6. Avataaar/Circle Created with python_avatars steveandamyalso says:

    Can you please calculate the AL value of the toroidal cores? You can use your scope and its function generator.

  7. Avataaar/Circle Created with python_avatars Robert Heal says:

    "soudure" is the French word for "solder" or "soldering", and Americans ( well, some of them ), like to point out that it does not have an L in it.

  8. Avataaar/Circle Created with python_avatars RWBHere says:

    Thanks ajulian. Those ferrite toroids are a lot bigger than the ones I've been using. Mine are about 5mm OD, if memory serves. The bifilar coil is about 4 or 5 turns in each half, and they work fine with generic NPN transistors and a 1kOhm resistor.

  9. Avataaar/Circle Created with python_avatars metallitech says:

    swizz
    noun [ S ] also swiz UK ​ /swɪz/ US ​ /swɪz/ uk old-fashioned informal

    something that is disappointing or unfair:

    "There's only half as much in the new packets. "What a swizz!"

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