Product Overview
Sylvania CTT-DAX Incandescent Projector Lamp 1000W 120V Blue Top - Medium Prefocus P28s Base, T12 Bulb, NOS
Condition
Unused NOS. Clear envelope shows intact filament assembly, gold base with pins, and blue dome coating on the tip - no cracks or chips. Original box labeled CTT-DAX, 1000 Watts, 120V. Sourced from legacy electronics supply chain recovery. Covered by our no-hassle guarantee.
Ships same or next business day from our Idaho warehouse. Honest pricing, no nonsense.
Online since 1999. We are here for our customers, with a no-hassle satisfaction guarantee.
Product Overview
Sylvania CTT-DAX is a 1000W, 120V incandescent projector lamp built for high-intensity light output in 16mm film projectors and compatible professional AV systems. The blue top coating manages heat and improves beam quality. ANSI code CTT/DAX. Base type: Medium Prefocus (P28s). Bulb shape: T12 tubular. Burn position: base down. Filament type: C13D.
Key Features
- Wattage: 1000W
- Voltage: 120V
- ANSI Code: CTT/DAX
- Blue top coating for heat management and beam quality
- Base: Medium Prefocus P28s (28mm)
- Bulb shape: T12 tubular
- Filament type: C13D
- Burn position: base down (BD)
- Manufacturer: Sylvania
Applications
- Replacing a burnt-out lamp in a vintage 16mm movie projector - removing the old bulb from the housing, seating the CTT-DAX into the prefocus bracket, and securing it before the next screening.
- Routine lamp maintenance in school or archive projectors, keeping historical and educational film content viewable without hunting for a compatible modern substitute.
- Repair shop bench work on Bell & Howell and similar projector models that call out CTT/DAX by ANSI code.
- Hobbyist home cinema setups running vintage 16mm equipment where LED retrofits are incompatible due to base type, wattage, or optical geometry.
- Studio and event use cases where the authentic color temperature and filament character of an incandescent source is the point, not a compromise.
Frequently Asked Questions
What base does the CTT-DAX use, and will it fit my projector?
The CTT-DAX uses a Medium Prefocus (P28s) base. Confirm your projector specifies the ANSI code CTT or DAX and accepts a 1000W, 120V lamp with a P28s base. If your projector lists CTT/DAX by ANSI code, this lamp is the correct type.
What is the blue top for?
The blue top coating on the bulb tip manages heat and improves beam quality by absorbing excess infrared energy near the top of the envelope. It is a feature of this specific Sylvania version, not a universal CTT/DAX characteristic - some CTT/DAX lamps have a gold or black top instead.
Is anything else included with this lamp?
One Sylvania CTT-DAX projector lamp in its original labeled box. No additional accessories included.
What does Unused NOS mean for a lamp like this?
Unused NOS means the lamp was never installed or operated. It was stored and is now being offered from surplus supply. The envelope, filament, and base show no signs of use or damage.
Incandescent projector lamps do not get easier to find as time goes on - and a NOS Sylvania with the blue top and intact filament is the kind of part a serious restorer keeps one of on the shelf. If your projector is ready, this lamp is too.
