| Author |
Message |
    
Rfman100
| | Posted on Saturday, September 20, 2003 - 11:14 pm: | 
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I want to practice CW. (non-transmition)
I have a morse code practise keyer that came with the box on the other end. The problem was that when I would practise, the qulity of the sound was awful. Even if I lowered the pitch.
So I took the box off of keyer.
Today I went to Radio shack and I bought a Piezo Transducer, Mini-Buzzer Element and a 9 volt battery.
I tried to wire of this together but nothing worked. Sometimes I may hear a faint electrical kiss. But nothing more.
I tried each one at time.
One of them came with three wires: Black, Red & Blue. I am not sure what I am suppose to do with the bue wire.
The other one just came with a back and a red wire.
I do not have a soidering irion. I did this by twisting wires without a board.
What should I do?
Thanks |
Ca346
| | Posted on Sunday, September 21, 2003 - 12:31 am: |
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I have an MFJ iambic code keyer ($50) that I use to practice on into a dummy load on my tuner. It has 3 wires. One to each side of the keyer and a ground wire to the base of the keyer.
Soldering irons are cheap. I recommend buying one. It would be better in the long run.
Start with the buzzer. Connect it to the battery and make sure it works on 9V first? Then connect in the key. Good luck |
Rfman100
| | Posted on Friday, September 26, 2003 - 12:15 am: |
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I have a box that you plug into keyer that I bought from MFJ. MODEL CW50.
The plug comes with 3 wires. I am not sure which one is the ground. |
Znut
| | Posted on Friday, September 26, 2003 - 10:20 am: |
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A straight up transducer needs to be driven with a signal. Check what RS recommends for IC's or whatever to drive that thing. It should be cheap and give you options for tones.
However, like a speaker, it may be burnt up if you applied DC to it. |
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