From w3nu at roadrunner.com Sun Sep 20 21:25:35 2015 From: w3nu at roadrunner.com (Charles Ring) Date: Sun, 20 Sep 2015 21:25:35 -0400 Subject: [MFJ-Ameritron] MFJ-492 In-Reply-To: References: <1075F984E4FF477CAD67DC95C6737EB3@HowiePC> <2F5C256925774735B9A1FB252F74F647@DanHowiePC> <1099070926F3452487ED4EACFE3B8E33@HowiePC> <008501d0f3c4$b16266a0$142733e0$@com> <11C2359AECDD421DB1EF4F1F203DCA43@HowiePC> <55FF0DB4.9070008@bellsouth.net> Message-ID: <55FF5C8F.5070501@roadrunner.com> I recently bought a used MFJ-492 keyer, with a never-installed memory expansion chip. The downloaded manual does not make clear if this chip goes in the vacant socket, or if it should replace the existing same-size chip. Also, the two existing large chips are keyed opposite from each other, so which way should the memory expansion go? -- *Charles Ring W3NU*