Hallo Orion users, 2 weeks ago I`ve got an Orion1. It was announced to be full ok. But as I switched it on , I saw the display was a little dark in the upper left corner and was flickering during tra
I would call Paul Clinton TT service mgr and ak about this..or complain about this???? That shoud not happen. I wander how many tey had go out that way>??? 73, Lee, KC9CDT Hallo Orion users, 2 weeks
A power transistor failed after 5-6 years of use and Heinz did a great job of troubleshooting and repair. There was a parts shortage at time of mfr and factory made a slightly inelegant substitution.
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Wed, 12 Jan 2011 17:30:21 -0600
NTE is a replacement line, typically more expensive than original 2N parts. The BD246 part is not a typical US part, though its possible, but that's more a European part number, unlikely to be stocke
Thanks for the feedback. May I explain my impression that not the transistor BD246C itself is the problem. It was not defekt. Also not whether it was manufactured (see datasheed Bourns) . Yes the Dat
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Thu, 13 Jan 2011 11:14:19 -0600
If the BD246 wasn't faulty, just slowed by the length of the leads, how did the radio ever work? Might the aging of an electrolytic have contributed to the poor regulation? 73, Jerry, K0CQ __________
Yes the cabel length with its inductance and the capacitive coupling between them (cbe) influenced the controll loop in this circuitry and made it too slow. The upper switchmode frequency is reduced