CTB ANSI Code

CTB ANSI is a T10 lamp with a P28s base operating at 250 watts and 50 volts. It has a Clear finish. See the specifications table below for complete technical details, dimensions, compatibility information, and operating characteristics for ANSI CTB lamps.

Electrical Specifications

Amps5
Volts50
Watts250

Photometrics

Light Center Length (LCL)2.25" (57.2mm)

Physical Characteristics

BaseP28s
Bulb ShapeT10
FilamentC-13
FinishClear
Max Overall Length (MOL)5.51" (140mm)

Operating Characteristics

Burn PositionBase Down

General Information
Lamp CodeCTB
Code TypeANSI

T10 Shape

T10
Diameter Designation10/8"
Glass Diameter 1 1/4" (1.25")
Shape CodeT
Shape ClassificationTubular

C-13 Filament

C-13
Coil TypeC - Single Coil

P28s Base

P28s

Cross Reference Part Numbers

BrandMPNDescriptionAvailability
ANSICTB

Equipment Used In

BrandModelType
Eastman Kodak Kodascope B

CTB may also be listed as:
250WATT-T10-56 WESTINGHOUSE250WATT-T10-56-50VOLT WESTINGHOUSE250WATT-T10-P28S-CLEAR-50VOLT MAZDA250WATT-T10-P28S-CLEAR-50VOLT WESTINGHOUSE
50V-250W-PREFOCUS-A1 MAZDACTBCTB ANSICTB ASA
CTB INTERLIGHTCTB WESTINGHOUSECTB-50V ANSICTB-50V ASA
CTB-50V-250W ANSICTB-50V-250W ASACTB-50V/50V/250W/P28S ANSICTB-50VOLT ANSI
CTB-50VOLT ASACTB/50V/250W/P28S ANSII/50V/250W/P28S/T10/C13I/50V/250W/P28S/T10/C13/CTB
I/50V/250W/P28S/T10/CLI/50V/250W/P28S/T10/CL/CTBP-25-EO GENERAL-ELECTRICP-25-EO MAZDA
P-25-EO-GE MAZDAPH-250WATT-T10-56 WESTINGHOUSEPH-250WATT-T10-56-50VOLT WESTINGHOUSEPH-250WATT-T10-P28S-CLEAR-50VOLT MAZDA
PH-250WATT-T10-P28S-CLEAR-50VOLT WESTINGHOUSESP250T10P28SC13-50VSP250T10P28SC1350V-CTBSP250T10P28SCL-50V
SP250T10P28SCL50V-CTBSP250T10PC13-50VSP250T10PC1350V-CTBSP250T10PCL-50V
SP250T10PCL50V-CTB