Shorted input
To jcarr : Jonathan, don't do me an ox - what you write, I certainly know. But manufacturer, which don't get current limiting to the output, ox is, 'cos he may not to exclude case, when short is for example directly in cabel. You must not to do " hard short ", but with 10 - 33 Ohms. To Peter : Induction from relay coil to signal line is not crazy, but you must use good stabilised voltage and coil must use + / - voltage ( 2 . 12 V instead 1 . 24 V ). Relicts of hum on both ends of coil winding are typical together in phase oposite, so induction of hum is disregarded.
To jcarr : Jonathan, don't do me an ox - what you write, I certainly know. But manufacturer, which don't get current limiting to the output, ox is, 'cos he may not to exclude case, when short is for example directly in cabel. You must not to do " hard short ", but with 10 - 33 Ohms. To Peter : Induction from relay coil to signal line is not crazy, but you must use good stabilised voltage and coil must use + / - voltage ( 2 . 12 V instead 1 . 24 V ). Relicts of hum on both ends of coil winding are typical together in phase oposite, so induction of hum is disregarded.
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.