Last Updated 37 minutes ago
Overview
The Type 2811 places two Molefar cells side by side under one yoke. Each has its own circuit and filter frame. The 37¾ in. head can carry a warm and a cool wash for a change of scene without moving the fixture.
Key specifications
| Specification | Type 2811 |
|---|---|
| Maximum head load | 3,000 W across 2 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 | 37¾ in. wide × 9¾ in. deep |
| Hanging drop | 22¼ in. from pipe centre to bottom of colour-frame holder |
| Fixture weight | 24½ lb including yoke and holder |
| Globe sockets | Recessed single-contact lamp, with one spring contact at each end |
| Filter hardware | One Type 27912 two-cell holder, 2 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
- Two circuits let the crew set and rehearse a two-colour change from the dimmer position.
- Both cells share the yoke. Moving the head to correct one wash also moves the other.
Practical uses
For a day-to-evening backing, load one cell with each colour and check the cyc with each circuit at its intended cue level. Check the transition at the join between adjacent heads, where the balance of the two colours can change.
Output and photometrics
The series sheet identifies the Type 2701 one-light and an FDB lamp in its photometric test. It gives no two-cell output figure for the Type 2811. For a two-colour cue, meter each colour on its own at the top, middle and bottom of the cyc, then check the blend.
Molefar series mounting diagrams and test conditions.
Power and controls
Two separate circuits feed up to 1,500 W each. With two 1,500 W, 120 V globes, each circuit draws 12.5 A and the head totals 3 kW. With two 1,000 W globes the combined load is 2 kW.
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
One Type 27912 two-cell holder takes two Type 27934 filter frames. Both frames can carry the same colour when a cue calls for one wash, or different colours when each circuit needs its own look.
Comparable fixture
For a single independently placed colour at the end of the run, the one-light Type 2701 occupies less pipe width. Compare the Molefar layouts in the manufacturer’s catalogue.
Field coverage and further reading
Mole’s rental catalogue lists the Type 2811 as a two-circuit head and offers 1,000 W or 1,500 W globes. A booking for a “2K Molefar” can describe the installed pair of lamps in a head rated for 3 kW. Mole-Richardson rental catalogue, Molefars.
Rental and used-fixture checks
Request both circuit leads and both filter frames. During prep, energize each circuit separately and mark which lead feeds the left and right cells as viewed from the backing.
Documentation
- Mole-Richardson Molefar Super Quartz Cyc-Strips, specifications and mounting diagrams (view the original sheet online)
- Type 2811 specifications on AV-iQ
- Mole-Richardson rental catalogue, Molefars
- Ushio double-ended quartz lamps
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