Re: Strange Tek2440 issue
Ok, Q879 collector is solid. When things go sour, it stays. The base voltage is moving, as is the emitter. So it's being told to compensate for the change. However, under normal conditions, the collector voltage is lower by a few hundred mv than the schematic calls for while the base and emitter are within a few mv. Under normal conditions there's a 300mv drop across the shunt.toggle quoted messageShow quoted text
Going to take a closer look at Q879's feed.
On 09/01/2020 10:03 AM, Siggi wrote:
On Mon, Aug 31, 2020 at 8:36 PM Vince Vielhaber <vev@...> wrote:The 5V jumping around is the 5V regulated that C494 is on. There itOh, interesting. I assumed you were talking about the 5VD, which is the