[OZAPRS] LM7805 and caps
dave at horsfall.org
Mon Aug 27 18:54:53 EST 2007
On Mon, 27 Aug 2007, FLECK, Wolfgang wrote:
> It is common knowledge that these 3 terminal regulators have a tendency
> to oscillate. The capacitors prevent it. They need only about half a
> microfarad or so to settle them down. It is also a good idea around RF
> gear to have a bit of extra filtering. Say a 0.01mF ceramic in parallel.
And don't forget the "feedback" diode.
> Regards Bob VK2BYF
G'day, Bite Yer Foot :-)
-- Dave vk2kfu
Ozaprs mailing list
Ozaprs at aprs.net.au
More information about the Ozaprs