On the Knight 600 tube tester http://bama.edebris.com/manuals/knight/600tube/
to calibrate the tester it says adjust R-10, the calibration control mounted on TS-2. The parts list doesn't show TS-2. Are they talking about adjusting the plastic screw that is connected to the meter needle?

:On the Knight 600 tube tester http://bama.edebris.com/manuals/knight/600tube/
:to calibrate the tester it says adjust R-10, the calibration control mounted on TS-2. The parts list doesn't show TS-2. Are they talking about adjusting the plastic screw that is connected to the meter needle?

Franz, TS-2 is terminal strip 2. R-10 is 1200 ohm variable resistor for adjusting the meter to read on line test mark. To locate it look for TS-2 mounted to the roll chart bracket. You will also see your rectifier mounted on this TS-2.

Bill VA

::On the Knight 600 tube tester http://bama.edebris.com/manuals/knight/600tube/
::to calibrate the tester it says adjust R-10, the calibration control mounted on TS-2. The parts list doesn't show TS-2. Are they talking about adjusting the plastic screw that is connected to the meter needle?
:
:Franz, TS-2 is terminal strip 2. R-10 is 1200 ohm variable resistor for adjusting the meter to read on line test mark. To locate it look for TS-2 mounted to the roll chart bracket. You will also see your rectifier mounted on this TS-2.
:
:Bill VA
What does the plastic screw on the front of the meter do & how is it adjusted?

:What does the plastic screw on the front of the meter do & how is it adjusted?

The plastic adjustment screw on the front of the meter is associated with the mechanical Zero adjustment of the metereing as referenced to its scales left indexing mark. Typically it is making an fine tensioning adjustment to the top coiled spring of the set of two, of which there is a like counter-tensioned unit at the bottom on common d'arsonaval types of meter movements .
You would want the unit void of any power and then the adjustment screw will gradually swing that pointer in both directrtions, in respect to which direction it is turned. I usually will set it to what seems to initially be right on Zero, and then power up the init to confirm that the unit resumes that zero posituioning each time. Sometimes, in accordance with the quality of meter movement , it is required to make an averaging after several tries.

THASSSSIT !

73's de Edd

:::On the Knight 600 tube tester http://bama.edebris.com/manuals/knight/600tube/
:::to calibrate the tester it says adjust R-10, the calibration control mounted on TS-2. The parts list doesn't show TS-2. Are they talking about adjusting the plastic screw that is connected to the meter needle?
::
::Franz, TS-2 is terminal strip 2. R-10 is 1200 ohm variable resistor for adjusting the meter to read on line test mark. To locate it look for TS-2 mounted to the roll chart bracket. You will also see your rectifier mounted on this TS-2.
::
::Bill VA
:What does the plastic screw on the front of the meter do & how is it adjusted?

The screw on the meter is used to adjust the mechanical zero of the meter. Usually, with all power removed from the tester, the screw is adjusted until the meter rests on the left hand zero line, in the position the meter will be read (horizontal or vertical), and then forget about it.

Lewis

::::On the Knight 600 tube tester http://bama.edebris.com/manuals/knight/600tube/
::::to calibrate the tester it says adjust R-10, the calibration control mounted on TS-2. The parts list doesn't show TS-2. Are they talking about adjusting the plastic screw that is connected to the meter needle?
:::
:::Franz, TS-2 is terminal strip 2. R-10 is 1200 ohm variable resistor for adjusting the meter to read on line test mark. To locate it look for TS-2 mounted to the roll chart bracket. You will also see your rectifier mounted on this TS-2.
:::
:::Bill VA
::What does the plastic screw on the front of the meter do & how is it adjusted?
:
:
:The screw on the meter is used to adjust the mechanical zero of the meter. Usually, with all power removed from the tester, the screw is adjusted until the meter rests on the left hand zero line, in the position the meter will be read (horizontal or vertical), and then forget about it.
:
:Lewis

Yes, and I hope the next question is not "What if it don't adjust and stays an inch or so from the zero line?"

Bill VA

:::::On the Knight 600 tube tester http://bama.edebris.com/manuals/knight/600tube/
:::::to calibrate the tester it says adjust R-10, the calibration control mounted on TS-2. The parts list doesn't show TS-2. Are they talking about adjusting the plastic screw that is connected to the meter needle?
::::
::::Franz, TS-2 is terminal strip 2. R-10 is 1200 ohm variable resistor for adjusting the meter to read on line test mark. To locate it look for TS-2 mounted to the roll chart bracket. You will also see your rectifier mounted on this TS-2.
::::
::::Bill VA
:::What does the plastic screw on the front of the meter do & how is it adjusted?
::
::
::The screw on the meter is used to adjust the mechanical zero of the meter. Usually, with all power removed from the tester, the screw is adjusted until the meter rests on the left hand zero line, in the position the meter will be read (horizontal or vertical), and then forget about it.
::
::Lewis
:
:Yes, and I hope the next question is not "What if it don't adjust and stays an inch or so from the zero line?"
:
:Bill VA
I got that adjusted to zero, but how do I adjust R-10? It's round metal, the outside is connected to the center lug on the load control, there is a lever coming from R-10 the lever is soldered to the post where the R-11 resistor & the rectifier are connected.

:I got that adjusted to zero, but how do I adjust R-10? It's round metal, the outside is connected to the center lug on the load control, there is a lever coming from R-10 the lever is soldered to the post where the R-11 resistor & the rectifier are connected.

Any chance that what you are describing is what we affectionately call a "buzz pot"?
In which case, the adjustment is made at the X crossing at the center with a small screwdriver blade inserted.

Ref:
http://img355.imageshack.us/img355/9425/buzzzzzzzzzzzzzpotwq1.jpg

73's de Edd

:
::I got that adjusted to zero, but how do I adjust R-10? It's round metal, the outside is connected to the center lug on the load control, there is a lever coming from R-10 the lever is soldered to the post where the R-11 resistor & the rectifier are connected.
:
:Any chance that what you are describing is what we affectionately call a "buzz pot"?
:In which case, the adjustment is made at the X crossing at the center with a small screwdriver blade inserted.
:
:Ref:
:http://img355.imageshack.us/img355/9425/buzzzzzzzzzzzzzpotwq1.jpg
:
CAVEAT......
Make that an INSULATED screwdriver..OR its handle....since, if necessity requires
that adjustment has to be made on HOT / Working equipment.

WHY...because the typical low values of those pots as well as the slot being common connected, and not insulated, may result in the application of 275,000 millivolts to your body proper and burn a pinhole- punch thru in your tennies finding a ground. LOL

73's de Edd