Heathkit TC-2 Tube Tester

[Jones, Steve]

Attended the 48th annual Winchester VA hamfest this
morning. My prize was a Heathkit TC-2 tube tester
($15!!). Seems to work fine.

Does anyone have any experience with this unit? In
particular, there is a SET LINE adjustment that I guess
compensates for line voltage variation. How do I use
this? There was no manual and it is not obvious. On the
right side of the unit is a slide switch. Up position is for
ADJUST LINE SHORT and down is TEST. There is a
SHORT light. There is a meter that has a scale from
0-100. In the middle of the scale is a verticle line. On
the left side of the line it says LINE, on the right side it
says TEST. When I turn it on, without a tube, if I turn
the SET LINE knob the reading on the meter goes up
and down somewhat.

For all the tubes I tested, the SHORT light was lit with
the afore mentioned slide switch in the UP position. The
light went out in the down position.

Any help on this appreciated. Thanks.

Steve

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