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OneteslaTS RF Operating Frequency?

PostPosted: Wed Mar 21, 2018 9:31 am
by BudP
Does anyone know the approximate RF frequency that the OneteslaTS operates on? (i.e., the resonant frequency of the secondary, NOT the interrupter's audio frequency). Is it below or above -or in- the AM broadcast band?

Thought I'd ask before spending a lot of time searching with a general-coverage receiver... just wondering where to start looking.

I'm assuming the interrupter modulates the RF, and one should be able to hear the audio on a radio receiver tuned to the correct frequency... yes? no?

Bud

Re: OneteslaTS RF Operating Frequency?

PostPosted: Wed Mar 21, 2018 4:32 pm
by BudP
Never mind... I found it. I found another thread mentioning 270 kHz, so I started looking there. Mine is running at around 275 kHz, and on a general coverage receiver tuned to that frequency, set to AM mode, the signal from the coil can be heard. It sounds exactly like the sound produced by the spark (no surprise there), and the fidelity seems to be about the same as the "spark-speaker". Sounds pretty neat when OMD files are played. Next, I'll have to check the propagated range of the signal...

Re: OneteslaTS RF Operating Frequency?

PostPosted: Thu Mar 22, 2018 11:20 am
by BudP
Found the third harmonic of my coil around 835 kHz, which makes the actual operating frequency around 278.3 kHz. Sound about right to everybody?

Re: OneteslaTS RF Operating Frequency?

PostPosted: Thu Mar 22, 2018 12:12 pm
by Bayley
yep

Re: OneteslaTS RF Operating Frequency?

PostPosted: Fri May 04, 2018 11:43 am
by ElectroTom
nice, when I get mine working I will be trying that !