Body
Hi Norman,
At least one more parameter is needed for such a calculation. If knowing the capacitance and the time of the pulse or perhaps the energy of the pulse the inductance can be calculated.
Regards
Ole
---In [email protected], <nwootan@...> wrote :
The .026 mfd condenser was a perfect "L/C" match so do your math and solve the impedance of the iron core coil!
On 3/19/2018 7:12 PM, 'S.friedrich' s.friedrich@... mailto:s.friedrich@... [EVGRAY] wrote:
Hello Norm, that means this vote could not reach with any other LC!?!. For me that seems to be an ignition coil with breaker contact like the old Vw beetle. But this capacitor is very small, how big was the inductance of the coil in Henry?
Von Samsung Mobile gesendet
-------- Ursprüngliche Nachricht --------
Von: "Norman Wootan nwootan@... mailto:nwootan@... [EVGRAY]"
Datum:20.03.2018 01:02 (GMT+01:00)
An: [email protected] mailto:[email protected]
Betreff: Re: [EVGRAY] Sven, this is old style 3 pole magneto coils for Outboard Marine outboards!
Sven, this 3 pole coil design was used for many years by Outboard Marine Corp 40s up to the 70s in the two cylinder magnetos. I had a magneto test bench where I could experiment with the careful timing adjustments of the breaker points (before breakerless solid state commutation). by careful adjustment of breaker gap/timing you could get magneto operating at peak of resonant curve in the "Ultra high Q" region! At idle, (300 RPM) a very well tuned magneto of this design would yield a good one inch bright blue arc. The condenser for this type of coil was .026mfd which was a "perfect match" to the impedance of the iron core coil. I had various values of condensers (capacitors) but only the proper value would yield maximum performance!
On 3/19/2018 6:02 PM, Norman Wootan nwootan@... mailto:nwootan@... [EVGRAY] wrote:
https://m.ebay.com/itm/Ignition-Coil-for-Some-Early-Model-Johnson-Evinrude-2-Cylinder-Replaces-584477-/220888888795 https://m.ebay.com/itm/Ignition-Coil-for-Some-Early-Model-Johnson-Evinrude-2-Cylinder-Replaces-584477-/220888888795
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