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  1. bushtech

    4G/5G etc

    Perfect for Wifi towers on the hills. The trouble with fibre is that you need to run the fibre to wherever it goes. Here that means digging a trench.
  2. bushtech

    4G/5G etc

    Staying in the rural areas you are always sucking on the rear mammalian protuberance. When we moved into the bush I was forced to get a sat connection for internet at an eyewatering cost. Fortunately one of the ISP's put up a tower a long way away. Putting up a directional yagi at least...
  3. bushtech

    4G/5G etc

    http://www.fujitsu.com/downloads/TEL/fnc/whitepapers/Fujitsu_Wireless_Backhaul.pdf
  4. bushtech

    Chinese Hiland 0-30V/Audioguru PSU build (down the rabbit hole)

    Audioguru: Correct. Paulv: C10 connects between D13 and Q3/R19 Your Rev 6: C10 connects between R19 and U3
  5. bushtech

    Chinese Hiland 0-30V/Audioguru PSU build (down the rabbit hole)

    Audioguru: I am building to your Rev 6 design as per first post on this thread.
  6. bushtech

    Chinese Hiland 0-30V/Audioguru PSU build (down the rabbit hole)

    Update: Installation of RV3: Have I interpreted the wiring at the pot correctly?
  7. bushtech

    Chinese Hiland 0-30V/Audioguru PSU build (down the rabbit hole)

    Install of cap C10
  8. bushtech

    Chinese Hiland 0-30V/Audioguru PSU build (down the rabbit hole)

    Update: Tricky insertion of Diode D13. Big thanks to Paulv here: Don't think I could have figured it out without his help http://www.paulvdiyblogs.net/2015/05/tuning-030v-dc-with-03a-psu-diy-kit.html
  9. bushtech

    Chinese Hiland 0-30V/Audioguru PSU build (down the rabbit hole)

    Update: Diode D7 double up and reversal:
  10. bushtech

    Chinese Hiland 0-30V/Audioguru PSU build (down the rabbit hole)

    Yep, it's a little monster. Hope it doesn't tear a hole through my plastic case a la Fukushima!:)
  11. bushtech

    Chinese Hiland 0-30V/Audioguru PSU build (down the rabbit hole)

    Update time: New transformer received:
  12. bushtech

    Help finding a display

    Why not just show both at the same time: https://www.ebay.com/itm/DC-100V-10A-Voltmeter-Ammeter-Blue-Red-LED-Amp-Dual-Digital-Volt-Amp-Meter/112581197562?var=412989464185&hash=item1a365cbefa:m:mJR8WZogsNA-ivdQ2VBe5rw
  13. bushtech

    Help identify a resistor without bands

    Great! Thanks dorke.
  14. bushtech

    Help identify a resistor without bands

    Apologies for chipping in: If you need say a 2W resistor and you can only find a 3W version, is that OK to use?
  15. bushtech

    Chinese Hiland 0-30V/Audioguru PSU build (down the rabbit hole)

    Thanks Audioguru and hevans1944
  16. bushtech

    Chinese Hiland 0-30V/Audioguru PSU build (down the rabbit hole)

    I like that idea of yours hevans, would never have thought of that. This idea of small cap in parallel is new to me. Can you give me a short description of how this works or maybe just a weblink.
  17. bushtech

    Chinese Hiland 0-30V/Audioguru PSU build (down the rabbit hole)

    No, but Ive heard of it. Here's a photo of the cap. Quite heavy. I have got some of this wire, should I go thicker? : http://www.mantech.co.za/Stock.aspx?Query=352M0024and
  18. bushtech

    Chinese Hiland 0-30V/Audioguru PSU build (down the rabbit hole)

    Due to the size of cap C1(12000μf 63V) I will have to move it off board. Does it matter if the cap is now connected via 100mm (4") long cables?
  19. bushtech

    Chinese Hiland 0-30V/Audioguru PSU build (down the rabbit hole)

    I'm quite happy using the 2N3055's. Will heatsink them. I think it's very unlikely that I will ever need 3A @ 30V. Just need to find out if any of them is usable as I know nothing about their history.
  20. bushtech

    Chinese Hiland 0-30V/Audioguru PSU build (down the rabbit hole)

    Regarding the 2N3055's: I found some ancient one's of unknown history. I scored a whole bunch of components from a car radio shop that operated in the 80's. Ran them through my chinese esr tester: B Uf 1 80 494 2 68 503 3 11 517 4...
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