Paul, Thanks for sharing. That patent for the heat sink sure puts an end to the debate of blowing in vs pulling out for the fans :-)
TNX es 73, Ron WD8SBB --- On Sat, 10/15/11, Paul <[email protected]> wrote: > From: Paul <[email protected]> > Subject: [Drakelist] R.L. Drake Patents > To: [email protected] > Date: Saturday, October 15, 2011, 5:34 PM > For those interested, the RV-75 > variable rate tuning is described in U.S. Pat. No. > 4,352,010, and the infamous TR-7 PA amplifier heat sink > located in the cabinet and near the PTO is described in U.S. > Pat. No. 4,237,521. > > These patents are available at www.freepatentsonline.com or > other patent websites of your choice. > > Paul, W5NTQ > > _______________________________________________ > Drakelist mailing list > [email protected] > http://mailman.zerobeat.net/mailman/listinfo/drakelist > _______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist
