I have S/N 6951 and it has a version 1 IF board. I have tried 2 different version 2 boards ( which I know are in good working order) and they work but I cannot get the s-meter to adjust: with the version one board my radio reads S9 at 28 MHz but both version 2 boards read S8 or a little lower when reading the calibrator signal. Do I have to adjust R1136 receiver sensitivity to get all boards to react the same? Steve KD2ED In a message dated 5/25/2008 11:59:08 A.M. Eastern Daylight Time, [EMAIL PROTECTED] writes:
Hi, Does anyone know about when, by serial number, Drake went to the newer version 2nd IF-Audio board? As much time has passed, I know that unless one is sure his/her radio is original, it may be hard to tell due to possible board changes before the current owner. But does someone out there has a good idea? FYI, my current TR7 is SN, 5392, split rear panel, late version NB, Late version pre-driver, early version digital control board and early version IF/Audio. I may be wrong, but the NB is likely a newer addition. I did notice that my IF/audio board has been repaired, an IC replaced and a poor soldering job that I had to clean up. I guess, bottom line, I'm trying to figure out if my audio board is original to the radio or not. Thanks, David WD9CMD **************Vote for your city's best dining and nightlife. City's Best 2008. (http://citysbest.aol.com?ncid=aolacg00050000000102)
