12V 60A car battery , maybe dead?

[Richdes]

Hello everybody in special to Groundloop this is my first post here an after read the complete post (12V 60A car battery , maybe dead?) I have decide go for the first circuit with air core but I Just I have #14 wire Wich is 1.6mm Is ok for air core or not? and the transistor what I have is 2sc4060 almost the same of BUX80 only different in his emitter base voltage BUX80 is (Veb)10v and 2sc4060 (Veb)7v I thin I need with this transistor 6v from input . Thanks a lottttt  I Wait for your advices and experience

[Groundloop]

Hello everybody in special to Groundloop this is my first post here an after read the complete post (12V 60A car battery , maybe dead?) I have decide go for the first circuit with air core but I Just I have #14 wire Wich is 1.6mm Is ok for air core or not? and the transistor what I have is 2sc4060 almost the same of BUX80 only different in his emitter base voltage BUX80 is (Veb)10v and 2sc4060 (Veb)7v I thin I need with this transistor 6v from input . Thanks a lottttt  I Wait for your advices and experience

Hi Richdes,

If you look one page back on this thread then you will see the good work on member "Rodelu".
The problem with your 1,6mm wire is that it will be difficult to twist the three wires together
before you wind the air core coil, but it can be done, I guess. The transistor (2SC4060) is OK to use
and you will need a heat sink on the transistor. If you have other questions, feel free to ask.

GL.

[Richdes]

Thank you Groundloop for your zoon reply I have made the inductor calculation and with 75 meter 1mm 18#  0d 100mm 75 meters give me an 2 MH of coil inductance and to get the same inductance with 14# and 0d 100mm to get 2MH the calculator has given to me 110 meters instead 75meters with #18 the coil calculator is here http://ekalk.eu/l_es.html tell me if I right or wrong and what about the input vcc with the 2sc4060 I guess 6 o 5v what do you think about it, !do you read my mind when you reply me! . I was planning to coil serpentreal as Rodelu did. The 2sc4060 is a litter faster Than BUX80 and more powerful in current, whith 14# gauge the circuit will be more powerful Don't you Think so?
                                   Best regards

[Groundloop]

Thank you Groundloop for your zoon reply I have made the inductor calculation and with 75 meter 1mm 18#  0d 100mm 75 meters give me an 2 MH of coil inductance and to get the same inductance with 14# and 0d 100mm to get 2MH the calculator has given to me 110 meters instead 75meters with #18 the coil calculator is here http://ekalk.eu/l_es.html tell me if I right or wrong and what about the input vcc with the 2sc4060 I guess 6 o 5v what do you think about it, !do you read my mind when you reply me! . I was planning to coil serpentreal as Rodelu did. The 2sc4060 is a litter faster Than BUX80 and more powerful in current, whith 14# gauge the circuit will be more powerful Don't you Think so?
                                   Best regards

Richdes,

You can use A LOT of approximation on the coils because you can adjust the base input feedback.
If you use lesser turn than 200 then it only means you will have less inductance and higher pulse
current through the transistor. You will get approx. 63 meters of copper wire with 200 turns onto
a 100mm plastic tube. (A little more because each layer adds the diameter.) But it is NOT that
important. You can regulate the current usage by the variable resistor AND your maximal input
voltage to the circuit. The though job for you is to twist the copper wires. You probably has to
cut three length (approx. 65 meter) and then manually twist those three wires together. Probably
doing so outdoors with the help of two other persons.

The circuit will run from 1 Volt up to the voltage that you cross the safe operating area of the transistor.
Do NOT run the circuit without any load on the output! Doing that (no load) will kill the transistor
due to over voltage. A safe input voltage is from 1 Volt up to 12 Volt.

I agree that your implementation will give you more output due to the recommended lesser inductance coils.
But it depends on your variable resistor setting and your choice of input voltage. The voltage "spikes" in the
coil must not be higher than 600 Volt for your transistor. But the important issue here is to get those "spikes"
into the load and dissipate them there to keep the transistor safe.

GL.

[Richdes]

Hi Groundloop I m here again I was busy for a while but  yesterday I have made my coil with #14 gauge, as you told me: !was difficult but not impossible! and I could did it this is my first trifilar coil 200 turns of #14 gauge twisted together and just waiting for the BYV29 that are on the way. I m planning to make put a 5w 1k resistor on the output circuit to avoid to damage the transistor by this way the circuit will never run without a small load to avoid high spikes. what do you think about it? I have another idea if the circuit runs so far so good as I expect I want to make five coils and five circuits connecting all outputs in series to desulphate 60v battery bank.What do you think about it? Could it be done?.
  Best regards Groundloop all your posts are well explained