Hickok 530 Operating Instructions Manual page 5

THE INSTRUMENT PACKED HEREWITH IS:
1 -- MODEL 530 DYNAMIC MUTUAL CONDUCTANCE TUBE TESTER
1 -- MODEL 530B DYNAMIC MUTUAL CONDUCTANCE TUBE TESTER
1 -- MODEL 510X DYNAMIC MUTUAL CONDUCTANCE COMBINATION TUBE TESTER AND
ANALYZER
— F O PY
ACCESSORIES INCLUDED WITH THE 550 TESTER ARE
1 -- INSTRUCTION BOOKLET FOR 530
—— M ——.-+— nn пне
1 -- GRID CAP
SIGNED
ACCESSORIES INCLUDED WITH THE 510X TESTER ARE
10. INSTRUCTION BOOKLET FOR 510X
о
l'-- BOOK OF TUBE SETTINGS
1 -- PAIR FLEXIBLE LEADS WITH PINS AND RODS
1 -- CONDENSER CABLE WITH PLUGS, PIN TIP AND ALLIGATOR CLIP
SERIAL
SIGNED
READ THESE INSTRUCTIONS THROUGH BEFORE ATTEMPTING TO OPERATE TESTER.
1. FUNCTIONS OF VARIOUS CONTROLS:
(a) The Selectors "A" and "B" control the socket contacts,
Plate, Grid, Cathode, etc., are led to any combination of socket contacts as
required. These switches are fully wired but only slightly more than one-third
of the available combinations are used with tubes announcede The master switch
(see page 11, on 510X only) must be set on TUBS TEST when instrument is used
as a tube tester.
(b) The Center switch in the top row controls the filament voltage. The
550, 5508, and 510X testers are now equipped to test tubes with filament
voltage to 137 volts.
(c) The Potentiometer "L" oontrols the sensitivity of this moter. Whey
set at 60 (Gm) the scale is road in micromhos from 0-3000. When set at 7/
tho mioromho scalo readings from 0-6000. When sot at tho mioromho scale
reads 0-15,000, The other settings for tho loft potentiometer as given in tho
chart after cach type of tubo aro used when it is roquirod that a good tubo
road in the groon soctor of tho motor, This Rod-Groon scalo is tho so-callod