Joe, Check this out. Page 2 shows a negative keying circuit.
http://k1el.tripod.com/k8man.pdf Tom, N4TL > [Original Message] > From: Joseph Glockner <[EMAIL PROTECTED]> > To: DXBase Reflector <[email protected]> > Date: 8/1/2007 8:11:21 PM > Subject: [Dxbase] Kenwood TS-850S - with the DXbase Internal CW Interface -anyone tried this? > > To all who own Kenwood TS-850S, > > I have always run CW using my 1958 bought J-38 Straight Key. > > Since I have never tried to run Keyboard CW using the > DXbase Internal CW interface, I brewed up that circuit > that is in the DXbase help files - and noted that (using > a VOM/DMM) the voltage was "negative" (using the 2N3904/2N2222 > NPN transistor) -- and of course - NO keying!! > > So, I put in a PNP transistor and the keying is there - > just that it is reversed -- I do not have any way to > invert it.. > > Has anyone out there with a Kenwood XCVR - ever got a circuit > made up properly to run the DXbase Internal CW Interface? > > Just trying to see "if" my station setup would truely allow > the use of the DXbase Internal CW Interface.. > > Any thoughts? > > 73 Joe wa6axe > > ______________________________________________________________ > Dxbase mailing list > Home: http://mailman.qth.net/mailman/listinfo/dxbase > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected]
