Simulated Tube Test

d. Connect a. 510,000-ohm resistor (para

b. Connect a 100,000-ohm resistor (para

20b) between the pins of the OCTAL test

socket as indicated in the chart (c above), and

socket as indicated in the chart (c below),

rotate the FUNCTION SWITCH to positions

and rotate the FUNCTION SWITCH to posi-

1 through 5. The SHORTS lamp should not

tions 1 through 5.

g l o w in any combination of FUNCTION

c . The SHORTS lamp should glow in

SWITCH position or resistor connection,

the positions marked "X" when the resistor

(b above) is connected between the indicated

26. Simulated Tube Test

pins on the OCTAL test socket.

a. Set the FUNCTION SWITCH to

RANGES B and connect the equipment as

b. Adjust the variable transformer (para

20b) so that the voltmeter indicates 50 volts,

c. Depress pushbutton 3 -- MUT. COND,

The test set meter should indicate 40 scale

divisions

Note. If the meter pointer deflects to the left, re-

verse the power cord plug of the variable transformer.

d. If the test set meter (TV-7/U only) does

connect

not indicate 40 scale divisions

the decade resistor in parallel with R113.

(1) Adjust the decade resistor so that

the test set meter indicates 40 scale

divisions

(2) Solder a resistor of the correct value

in parallel with R113.

e. When the test set meter (except for the

TV-7/U) indicates more than 40.5 divisions,

adjust R113 until the correct indication is ob-

tained.

f. When the test set meter (except for the

TV-7/U) indicates less than 39.5 divisions,

Figure 36. Connection for simulated tube test.