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  1. bushtech

    Solar powered power brick

    Got this brick fairly recently. Noticed on overlanding trip that brick was not charging via sunlight. Charge it from my cellphone charger and charges up fine. But I can leave it sitting in the sun for days and state of charge does not change. Can be seen by 4 blue LED's that light up when fully...
  2. bushtech

    Bosch Cordless Drill GSR 12-2 Charger testing

    This drill stopped working and I discovered that the batteries were flat/not charging. Now either the batteries are history or the charger is not charging the batteries. How do I check whether the charger is working? I get 17V AC coming out of the transformer and roughly the same in DC after...
  3. bushtech

    Power-One power supply mod

    It has always been a dream to have a decent power supply for my bench. This power supply was gifted to me by a very kind friend. It's a Power-One HCC15-3. It pushes out + and - rails from about 10V to 17V regulated by 2 pots at a very healthy +- 3A. Like this piece of kit. How...
  4. bushtech

    Car phone charger with AD85063D. Does it deliver?

    I am curious about this charger. Can it actually supply 2.1A as stated on the charger? When it was still working it mostly charged at 300 or 600mA. Here is the datasheet application for the charger: And here is the diagram for the actual charger: as I drew it in LTspice. Please be patient...
  5. bushtech

    fta Sat TV decoder: Need some ID

    Busy working on my fta Sat TV decoder. But I have come across some things that I can't identify. In the small red rectangle is two legged smd alfa 010. What is that? Then the big red rectangle has got something that looks like a 4 poster carport roof. It has got 4 leads coming up from the...
  6. bushtech

    Denon AVR 1804 amp won't switch on

    Grabbed the remote yesterday to switch on the amp, pushed button and nothing happened:(. Checked remote working by shining it at my phone camera and pressed button = working. Opened unit, checked fuse = working.Checked power cable, 220VAC arriving on board and red pilot light lit up as usual. I...
  7. bushtech

    Wi Lite wireless lighting switch

    Sir 73's de Edd You are a marvel Sir. Thank you. I think it will be a lot easier to figure out this diode with a photo which shows this diode as one of a set of 4. You can see them there where it shows D4 and D8
  8. bushtech

    Successfully unsoldering a big relay

    Hi What is the correct/best way to unsolder one of these beasties. I had a helluva time unsoldering it by heating up 2 pins at a time and pulling (stupid, I know). Ended up up with the expected damage to the board
  9. bushtech

    Hello from the sharp end of Africa

    Hi all and thank you for this great forum. Been lurking for a few weeks and have already learnt a lot. Been dabbling on and off in electronics for years but now that I've retired I have decided to get into electronics repair seriously as I have a crate full of broken electronics thanks to...
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