smaller and smaller

IMG_2552_223

I guess this was inevitable, SMD I’m going to. Here a photo of a previous PCB for a current project of mine.

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5 Comments

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5 responses to “smaller and smaller

  1. Ha, Ha. Wait ’til you get to my age……You won’t be able to see those tiny components . LOL
    Years ago I remember seeing a project in an electronics mag built on 0.2 inch ( yes, I did say 0.2 not 0.1 inch) Viroboard, The author claimed that 0.1 inch board was unnecessarily small and fiddly !!!

  2. hi,
    actually my vision isn’t good either. I’m wearing glasses (or contact lens most of the time, i can’t bear all that crap that glasses attrack). I’ll probably use a magnifier but I needed to work with SMD more often.

    0.2 seem to be on the opposite size of thinking lol. Do manufacters still make those 0.2 boards ? But could be nice for tube circuitry.

    • I haven’t seen 0.2 inch stripboard for years, as fare as I know it is not made anymore and, yes, It was handy for valve circuits on occasions.

      As far as I know Vero were the only people to make it but they got bought-out several times in the 80’s and 90’s and I think that was when it was dropped.

      I started playing with electronics in the 70’s, at that time making your own PCB’s was a real pain and quite expensive so I never really tried very hard to make them, instead I used strisboard and I got quite good at it (at least, I like to think so)

      As a side note: 0.1 inch Veroboard was rated at 30 Volts, I don’t know if the cheaper knock-offs’ were rated the same ( I have never been able to find out) but, with care, one can go up to 60 Volts. I did once try 120 Volts and did not have any problems, but I think that was more luck than anything else !! Perhaps with a thick layer of PCB lacquer would enable one to use high voltages safely, just be carefull when cutting the tracks to make sure they are well and truly cut, or make a (double cut).

      I have also mounted PCB mains transformers on stripboard with no problems. On the mains voltage side, only use every other strip, always double cut the strips including the in-between strips.

      • hi, I didn’t even know that vero was actually a company name.

        i’ve been pretty inactive on tubes recently. It’s really expensive and an unwieldy electronic domain.

        PCB still isn’t that cheap actually (although it is compared to the past I guess). It makes sense only if there’re plans to make several dozen of the same circuits.

        I ordered 10 PCB for this project, cost me 53euros (with shipping) from China. (In France, without surprises, it’d have cost me 600euros because of the machinery programming).

        I’ll see how it turns out, but it isn’t cheap once you add the components.

        protoboard remains my first choise for one-shot project. They’re very handy to do all sort of circuits. It allows me to change easily things around.

        thanks for your interest in my blog bishka. really appreciated !

      • Vero was a company. I seem to remember that they got into difficulties and were bought out by Metal Box, Who then sold them to Bic (becoming Bic Vero). After that, there was a management buy-out and they just made equipment cases, then they diapered.

        As for Valve circuits, They are expensive and the transformers are hard to find but, often used trick for the power supply is to use two transformers back to back If you make the input transformer big enough and with the correct secondary voltage, it can supply the heaters and the step-up transformer at the same time. If is also possible to use Mains transformers as out-put transformers, so long as you get the turns ratio right See this vid
        https://www.youtube.com/watch?v=Yzo3A-NywSs You can skip to the halfway point if you want.

        I have recently moved and I am trying to get the flat sorted, as soon as I do I will get back to my synth project.

        Anyway, I like your posts, I look forward to them.

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