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boatman

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Everything posted by boatman

  1. boatman
    20 litre plastic containers (ex-cleaning companies) filled with water? Oh, and they're free!
  2. boatman
    Well done @Crazy Al it's over 11 years since the design was started and well past the time it was migrated to SM components. Good luck with the migration and if there's anything I can do to help send me a PM. Although I no longer have access to EasyPC which was the original design platform, I do have Kicad.
  3. boatman
    Wood should be OK, but I think even galvanised tube will suffer end damage on concrete. A lot less than aluminium but the underlying steel isn't hardened.
  4. boatman
    One thing to be careful of when storing ali tube vertically is end damage. If the floor is concrete put down some padding (6mm rubber sheet is ideal) otherwise the tube ends will suffer.
  5. boatman
    So, an M16 connecting nut would be a good place to start. I'll be in the Inverness Men's Shed on Tuesday and I'll see what we've got to hand.
  6. boatman
    Is this what you are looking for? I turned it many years ago from a chunk of hex bar. The hex end was drilled & tapped to M10 with a bit of studding screwed in (with Loctite). You can make the stud any size you want. If you have a Men's Shed in your locality, give them a call as it's something they should be happy to knock up for you (we do this sort of thing every week in our Shed).
  7. boatman
    Get in touch with Brian Summers, he's the most likely source of manuals etc. http://www.tvcameramuseum.org/
  8. boatman
    Sorry I missed this post. here's a link to the zip file for version 1.4.
  9. boatman
    In my last job before I retired we used something very similar to this: https://bownetcms.co.uk/shop/data-cabinets/19-wall-box-accessories/power-distribution-units-pdu/uk-13a-bs1363-socket-12-way-vertical-rack-mount-pdu/ Quite expensive but very robust. Oh, and it was nearly 20 years ago!
  10. boatman
    Oooh err, I still have a 2020/2021 trade catalogue. It's probably worth putting it on Fleabay! Seriously though, this is very similar to the box we used for Bluecom and will probably do the trick: https://cpc.farnell.com/multicomp/mcrecs80/case-aluminium-80x108-5x45mm/dp/EN85413
  11. boatman
    You might find that adding a couple of general purpose transistors improves the performance.
  12. boatman
    Yes, the PIC12F629 is still available. You could substitute it with the PIC12HV629 which has a built-in shunt regulator so the 5V regulator can be dumped.
  13. boatman
    Sorry about the delay in replying here but I have been "sans computer" for a week (WiFi problems). Anyway, in true Blue Peter fashion "Here's One I Made Earlier". EN2014050261.pdf
  14. boatman
    Congratulations on your retirement, it sounds like you will be as busy as ever.
  15. boatman
    If it helps the small blue pot in the second picture is marked "503" which means it is 50k.
  16. boatman

    Sound to motor!

    boatman replied to sleah's topic in Lighting

    Thanks for that link. I managed to track down an article I wrote for Television magazine which was published in February 1977. I thought I would never see it again!
  17. boatman
    No problem, it looks like JST VH series will fit.
  18. boatman
    A multitool with a metal cutting blade should do the job. https://www.toolstation.com/dewalt-dcs356-18v-xr-multi-tool-3-speed/p98472 https://www.toolstation.com/bosch-expert-starlock-carbide-metal-plunge-cut-multi-tool-blade/p98073
  19. boatman
    Did you measure the pin pitch on the PCB headers?
  20. boatman
    They look like JST VH series (3.96mm pitch). Try this link: https://www.mattmillman.com/info/crimpconnectors/common-jst-connector-types/#vh
  21. boatman

    Flickering TV

    boatman replied to D.l's topic in Lighting

    Ah, the innate laziness of modern youth rears its head (not to mention insolence).
  22. boatman

    Flickering TV

    boatman replied to D.l's topic in Lighting

    Google for "TV Simulator". There's a few on Amazon at £14.99.
  23. boatman
    There are two circuits in the Bluecom power pack. Each circuit has an audio termination in the power pack but, if they are joined together using the "Common" button, one of the audio terminations is removed so there is still only one termination.
  24. boatman
    Hmmm, sorry I didn't look before I posted. Just zipped them up.
  25. boatman
    If it helps, when I was developing the BlueCom system, another Blue-Room member traced the circuit of a Stonewood CBP1. I believe it's identical to the Metro Audio beltpack. You'll need to use some scissors and sellotape but it's all there. Not wishing to implicate anyone in copyright busting, I'll leave it to the unnamed member to own up if they are so inclined! CBP1.zip
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