Siegfried Meier
Well-known member
Hey guys,
I have two 280 A2 meters here. I think one of them was connected incorrectly (by me, of course...) on the input power. I can see something called F1 across the positive pin - it looks like a solid colour resistor, but it's labelled "LF 1 1/2A" which makes sense, since the power adapter is 15V 1A. When I measure this component on the working 280 meter, I get a value and then the meter climbs to 0 ohms. However, on the dead meter it does nothing, which is leading me to believe this is cooked.
Can anyone tell me what this is? I've looked in the schematics on the Dorrough site and can't seem to find these specific revisions. It sounds like it might be some kind of diode, but I've never seen anything like it before.
Thanks!
Sig
I have two 280 A2 meters here. I think one of them was connected incorrectly (by me, of course...) on the input power. I can see something called F1 across the positive pin - it looks like a solid colour resistor, but it's labelled "LF 1 1/2A" which makes sense, since the power adapter is 15V 1A. When I measure this component on the working 280 meter, I get a value and then the meter climbs to 0 ohms. However, on the dead meter it does nothing, which is leading me to believe this is cooked.
Can anyone tell me what this is? I've looked in the schematics on the Dorrough site and can't seem to find these specific revisions. It sounds like it might be some kind of diode, but I've never seen anything like it before.
Thanks!
Sig