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  1. Minder

    Momentary Switch to directional DC motor

    Your required description in the OP states you would like to use a PB in place of the toggle? This circuit would only need the addition of a N.O. section on the PB and wired in series with motor power. Using the first diag. you could just include 2 of the unused relay contacts for motor polarity...
  2. Minder

    Momentary Switch to directional DC motor

    I have a flip-flop circuit made up of a couple of 24vdc relays, but the relays are maintained alternately. You could however add a N/O section to the sw ( DPST-PB) which should do the trick for you. M.
  3. Minder

    British Television?

    That was my reasoning back when satellite receivers were highly popular, and there were those that came up with the code to de-scramble. If you want to radiate a signal on my person or property, its mine to do as I wish. Max.
  4. Minder

    Ripped off? We shall see!

    Definitely a Chinese vendor! Also check out the negative/neutral F.B. he has! I would take the refund and run. M.
  5. Minder

    British Television?

    In the UK it used to be the Post Office I believe that collected it, and at that time they had a detector van, identified by the VHF detector antennae on the van roof when it would cruise the streets detecting non-payers. I recall one amusing incident that happened to one of my neighbors that...
  6. Minder

    British Television?

    IIRC, in UK you also had to have a license for a car radio, and I believe it was the case in Canada once, not sure about the US. I think it was pretty much dropped because of being hard to enforce, not like the TV license. M.
  7. Minder

    British Television?

    You pay for the privilege of TV and Radio reception, There is commercial TV in UK, It is akin to paying a yearly license fee to drive an automobile. Max.
  8. Minder

    Ripped off? We shall see!

    The one good thing about Ebay is that the seller has to provide a estimated delivery date, if not delivered in time you can claim a refund from the vender by opening a dispute with ebay, I have had a few non-deliveries from China and ebay has settled it quite fast. Also, there are a few sellers...
  9. Minder

    Simple example of double sided PCB design

    Have you considered KiCad? Here is a few simple tutorials to get started on a small double sided board. #1 Start Project #2 Assigning a schematic component to a PCB footprint #3 Silk Screen and Copper pour #4 Placing mounting srew holes on KiCad PCB. #5 Create a library that you can use...
  10. Minder

    Can I replace PLC with microcontroller for project

    If your concern was because I mentioned the relatively lower I/O refresh rate for the PLC, it would inconsequential, especially in this application. M.
  11. Minder

    Can I replace PLC with microcontroller for project

    A PLC should be perfectly capable, The operation appears to be a point-to-point procedure which is well within the capability of a PLC. An issue often appears when servo positioning is required, especially if interpolated moves are required. Some PLC's have add-on modules to take care of this...
  12. Minder

    Can I replace PLC with microcontroller for project

    A PLC has essentially a micro controller as its core, the difference is that the PLC has all the I/O conditioned with Opto modules etc. Another nice feature of a typical PLC is that the (ladder) logic can be displayed on a PC screen and the (on/Off) condition of each I/O can be seen. You could...
  13. Minder

    Building a closing switch using household items.

    Don't let Michael Faraday hear you say that!:rolleyes: M.
  14. Minder

    TNY264 - What do the other ID numbers mean please?

    Often manuf. date of production/ver etc.etc. M.
  15. Minder

    How do I implement firing of triac using microcontroller?

    There is also Fairchild AN3006 for a 555 circuit, You can also use the same principle for a micro, see Triac app notes on Microchip site.. And Fairchild AN3003. M.
  16. Minder

    Help required to identify circuit board

    Without details of the function of the boards and device identity, they are essentially scrap. M.
  17. Minder

    Help required to identify circuit board

    They do appear is if they could be some kind of I/O interfaces of some kind. M.
  18. Minder

    Stumped on this circuit blinking led with 1 transistor

    The base is floating! The transistor needs to be driven somehow. They are relying on the charge/discharge of C1, I don't really see any useful purpose being served by such a circuit? Especially as a tutorial.! M.
  19. Minder

    Help required to identify circuit board

    If true, makes it very difficult to identify the purpose of the board. M.
  20. Minder

    Help required to identify circuit board

    Looks like a OEM number?:( M.
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