Tue, 28 Sep 1999 18:41:57 +0200
- Message No. 6393
From: Philip.Herzog@gmx.de (Philip Herzog)
Subject: Re: intercom 9v/12v
Hi!
+--> You wrote:
| You know @'s voltage is 12v: any idea for reduce it to 9v between + and
| - of my intercom (without damage the @'s electric circuit) ?
Do you know a bit about electronics?
Go and buy a 7809 regulator and two 100nF capacitors.
1 ----- 3
+ ------------| 7809|------------- +
| ----- |
AT = 100nF |2 100nF = Intercom
| | |
- -------------------------------- -
- Philip
--
--- http://www.rrr.de/~phil/ - fon 0721-9812136
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