The ELK-960 Delay Timer should fit rigth in, however no temperature sensing.
<http://www.elkproducts.com/products/elk-960.htm> ---per LA9XKA At 05:05 17.05.2007, you wrote: >My club has several ACC controllers and none have provided for cooling >fan control. Does anyone have a simple circuit to turn on a fan with >PTT and then keep it running for xx minutes after PTT is released? >The repeater PTT line goes to ground on transmit. > >Most of the NE555 timer circuits that I have seen will not work in >this configuration. Delay on drop out. DODO. Thanks de David K5RAV > > > > > > >Yahoo! Groups Links > > >
