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Hi,
first I have to say that I use the circuit in the Bedini SG intermediate book, page 11.
I built the circuit today, I tested MJL21194G transistors.
I had to replace the pot and the 27k resistor with a 62ohms to get .103A on the ampmeter. I have bougth 30 of those transistors and they all performed almost exactly the same from .102 to .104A. I have also tested a 2N3055 in the cirduit and the 2N3055 give around the same result.
I have rebuilt the test circuit twice and it give me same result.
I have see some other comment about the same problem but I did not see any answer ... ???
What should I try ?
I finally proceed to build the Bedini circuit at page 9 of the intermediate book and test it live.
I have follow all the spec. in that book and from the beginner book too.
It is much more powerfull than my bifilar one.
After running a couple of hours with 3 x 5amp @12v batteries as load, the 1k 2 watts potentiometer die.
That is my second question, Why ? perhaps batteries were to small for that machine.
Yves
first I have to say that I use the circuit in the Bedini SG intermediate book, page 11.
I built the circuit today, I tested MJL21194G transistors.
I had to replace the pot and the 27k resistor with a 62ohms to get .103A on the ampmeter. I have bougth 30 of those transistors and they all performed almost exactly the same from .102 to .104A. I have also tested a 2N3055 in the cirduit and the 2N3055 give around the same result.
I have rebuilt the test circuit twice and it give me same result.
I have see some other comment about the same problem but I did not see any answer ... ???
What should I try ?
I finally proceed to build the Bedini circuit at page 9 of the intermediate book and test it live.
I have follow all the spec. in that book and from the beginner book too.
It is much more powerfull than my bifilar one.
After running a couple of hours with 3 x 5amp @12v batteries as load, the 1k 2 watts potentiometer die.
That is my second question, Why ? perhaps batteries were to small for that machine.
Yves