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  1. majoco

    Simple SW receiver on 3V?

    2 minutes googling and.... http://theradioboard.com/rb/viewtopic.php?t= Plenty of interesting posts here.
  2. majoco

    New boy on the forum...

    I dug out an old pic of my "Ivalek" crystal radio and it says it was a "Galena" radio? I don't think I had to fiddle around trying to find that "sweet spot"..... :)
  3. majoco

    Pure Tempus 1 DAB no sound or backlight

    It would help if we knew where you're located as DAB is not a worldwide system.
  4. majoco

    10.7 MHz oscillator with transistor

    Never mind connecting the oscillator to an FM IF amplifier - do you have a shortwave receiver, preferably digital, that you can use to search for your oscillator around 10.7MHz? Much better than a frequency counter as when you connect the counter to your oscillator, the frequency will change! I...
  5. majoco

    Panasonic Dect phone low emf option

    I have a pair of these phones - KX-TG2722 - and it says on the box "One touch ECO mode - transmission power is reduced up to 90%". The phones are still in the box - I got them free when I went to a 4G network for my Internet and phone connection. It says in the instruction leaflet ( you can...
  6. majoco

    Is transistor faulty or something else amiss

    I've made a few of these VHF FM transmitters for various purposes and they usually worked pretty well. My usual problem was finding the frequency - it doesn't need much to send the frequency out of the VHF FM band! There isn't enough power to make a frequency counter work - in the end I used a...
  7. majoco

    Radio detector + emitter

    Here's the emitter part, but it won't be a trivial exercise. The receiver is easy enough - a microwave diode and a coffee can with no lid....you probably won't be able to 'tune' it to a specific frequency but how many radar frequency signals are you expecting...
  8. majoco

    Capacitance measurements and frequency

    Huh? Are you sure you are not confusing "F" for "Farads" with "F" for "Frequency"?
  9. majoco

    New boy on the forum...

    Thanks, Bertus, for the welcome. Yes, I do have a ham licence but haven't been seriously operating for years - I put a 2m rig and a mag mount in the car on long trips and it's usually listening to the local repeater at home but that's about it other than a Kenwood 120V that I use for a signal...
  10. majoco

    New boy on the forum...

    Hi all - just joined the "Radio and Wireless" forum so a short history is probably warranted. For my eighth birthday Dad bought me an "Ivalek" ctystal set and with a long wire stretched down the back garden many MW station were received but it got boring. Dad's friend Fred Turner modified it to...
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