model 223 FEATURES
ACCOMMODATES ALL SERIES STRING AND Other UP-TO-DATE TUBE
TYPES: - 17 individual filament voltages from .75 to 110
volts. Tests all standard base types: 4-, 5-, 6-, 7-pin
large, octal, loctal, 7-, 9-, and 10-pin miniature, and Spin
nuvistor, novar and compactron.
OPEN ELEMENT TESTS: - This special test supplements the
primary Emission Test.
12 LEVER ELEMENT SELECTOR-DISTRIBUTION SYSTEM: - This
important CONAR feature provides
complete flexibility and anti-obsolescence assurance due to
new tube basing terminations.
THREE-COLUMN, TUBE ROLL CHART.
INDEPENDENT FILAMENT TERMINAL SELECTION: - Locates terminals
of all filaments (single, double, center-tapped) regardless
of pin positions. This is possible only when 12 instead of
the usual 10 levers are provided.
FILAMENT CONTINUITY TESTS: - Rapidly shows up open filaments
including open sections of tapped filaments.
TESTS SPECIAL TUBES: - Tests special-purpose tubes and gas
rectifier types such as 0Y4, 0Z3, 0Z4 and remote-control
gaseous types such as 0A4.
TESTS MULTI-SECTION TUBES: - Individual tests for each
section of multi-section tubes (where required). Open-close
"eye" tests of cathode ray indicator tubes.
HOT CATHODE LEAKAGE TESTS: - Reliable, sensitive neon method
shows up cathode leakage.
INTER-ELEMENT SHORT TESTS: - Made universally simple through
the use of the CONAR 12-lever element selector system.
METER: - Large, easy-to-read, clear-plastic cased meter.
Rugged, double-jeweled D’Arsonval type.
LINE ADJUSTMENT: - Read directly on meter. Continuously
variable, heavy-duty line-voltage control.
TEST CIRCUITS COMPLETELY TRANSFORMER-ISOLATED FROM POWER
LINE: - Assures utmost safety to operator and instrument.
SEPARATE WINDING ON POWER TRANSFORMER FOR TEST VOLTAGE.
Filament voltage taps are NOT used for test voltage supply.