| fluorescent ballast for driving esl - Click HERE for Original Thread |
| tade |
| I know the ballasts for lights are used to create high voltage. do you suppose one could work for driving an esl? do they rectify? |
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| bear |
If you are talking about a bias supply, then there is a vague possiblity... the open circuit voltage for most of them is ~600vac, iirc.
It's not really required, since you can use a simple diode multiplier stack to acheive almost any HV you need to bias an ESL, no significant current is needed.
At least one manufacturer used an AC "wall wart" and a reversed small step down transformer followed by a diode multiplier for the HV bias... resulting ~5kvdc.
To drive an ESL with audio you need a high quality transformer, often people use an appropriate impedance ratio output transformer driven "backwards".
_-_-bear |
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