Last Updated 39 minutes ago
Overview
The Type 2841 is a 51¼ in. row of three separately fed 1,500 W cells. Each accepts its own colour frame. The three-light is the widest Molefar in this family because all three cells sit in one row.
Key specifications
| Specification | Type 2841 |
|---|---|
| Maximum head load | 4,500 W across 3 circuits |
| Maximum per cell | 1,500 W, 12.5 A with a 120 V lamp |
| Control | Separate lead per cell. External switching or dimming. |
| Width and depth | 51¼ in. wide × 9¾ in. deep |
| Hanging drop | 22¼ in. from pipe centre to bottom of colour-frame holder |
| Fixture weight | 32 lb including yoke and holder |
| Globe sockets | Recessed single-contact lamp, with one spring contact at each end |
| Filter hardware | One Type 28412 three-cell holder, 3 individual Type 27934 filter frames |
Replacement lamps
Mole lists three 120 V, 3,200 K double-ended lamps. Each end of the globe seats in a spring-loaded contact. The series sheet specifies horizontal lamp operation within ±4°.
| Lamp code | Power | Current at 120 V | Ushio finish | Ushio rated life |
|---|---|---|---|---|
| FDB | 1,500 W | 12.5 A | Clear | 400 h |
| FGT | 1,500 W | 12.5 A | Frosted | 400 h |
| FFT | 1,000 W | 8.3 A | Clear | 300 h |
The original Mole sheet lists a clear FGT and a 500-hour FFT. The finish and life above are for Ushio’s own catalogued lamps. Match the markings on the replacement. Ushio double-ended quartz lamp catalogue.
Strengths and limitations
- Three gelled circuits can be cued independently from one hanging position.
- The row occupies more than four feet of pipe width. Check spacing against nearby scenery and other overhead fixtures before laying out the run.
Practical uses
For a three-colour backing, patch the same cell position on every fixture to the same colour group. Bring each group up separately and look for dark seams before programming the mixed cue. A swapped circuit is much easier to spot one colour at a time.
Output and photometrics
The series sheet identifies the Type 2701 one-light and an FDB lamp in its photometric test. It gives no three-cell output figure for the Type 2841. For a three-colour wash, record readings by circuit, including the gel and dimmer level. Two neighbouring cells with different gels can give very different readings from the same lamp wattage.
Molefar series mounting diagrams and test conditions.
Power and controls
Three 1,500 W lamps give a 4.5 kW total. At 120 V the three feeds draw 12.5 A each. Three 1,000 W FFT lamps give a 3 kW total through the same three circuits.
Mole specified three 36 in. conductors per circuit, with the plug selected when ordered. Confirm the fitted connectors and lamp voltage at prep. The lamp table above covers 120 V globes.
Optics and mounting
The Type 28412 holder spans all three openings and accepts three individual Type 27934 frames. Check the holder for twist across its length and seat each frame before focusing.
Comparable fixture
The Type 2791 arranges four cells in two rows. It has an extra colour circuit and a different hanging footprint. Compare the Molefar layouts in the manufacturer’s catalogue.
Field coverage and further reading
The Wortham Theater Center’s Cullen inventory lists the Type 2841 with an FDB 1,500 W lamp and a 15½ × 18⅜ in. gel frame. Those details identify the lamp and frame used at that venue. Wortham Theater Center, Cullen technical package.
Rental and used-fixture checks
Confirm the 51¼ in. width will pass through the access route and fit the planned pipe position. Count three filters and three leads, then check each compartment independently.
Documentation
- Mole-Richardson Molefar Super Quartz Cyc-Strips, specifications and mounting diagrams (view the original sheet online)
- Type 2841 specifications on AV-iQ
- Mole-Richardson rental catalogue, Molefars
- Ushio double-ended quartz lamps
Back to contents · More Mole-Richardson fixtures · Browse tungsten lights