David Clark U3815A Drilled Screened Box, P/N 26497P‑21

David Clark Drilled Screened Box Elevation, U3815A – 26497P‑21

Upgrade your intercom system with the genuine David Clark Drilled Screened Box Elevation U3815A (Part 26497P‑21). Designed for compatibility with Series 3800 headsets, this module delivers reliable PTT and volume control for safe, clear cockpit communication.

• Seamless Intercom Integration – Integrates headsets with mobile radios in the Series 3800 system using drilled and screened enclosure.
• Independent Volume Control – User-adjustable listen level potentiometer lets pilots tailor in-ear audio without affecting fellow crew.
• Push-to-Talk Precision – Built-in PTT button and remote PTT jack ensure clear, isolated transmission while pressed.
• Robust Construction – Manufactured by David Clark in the USA from Part 26497P‑21; built to FAA and quality standards.
• Compact Design – Lightweight (approx. 0.05 kg), drilled and screened aluminum box—ideal for cockpit mounting.

The U3815A module adds both radio and intercom capabilities to your David Clark Series 3800 communications setup. Featuring a rugged, drilled-screened aluminum enclosure, it minimizes electromagnetic interference while housing essential components: a headset jack, PTT button, radio input, dual intercom ports, remote PTT, and a potentiometer for volume. The volume control adjusts only your headset, leaving the system’s global audio untouched. When PTT is engaged—either directly or via remote—radio priority audio is cleanly delivered to the connected headset. Installation is simple: mount using included grommets, connect via keyed sockets to intercom and radio interface cords, and pair with optional remote PTT switches like belt packs or foot switches.

Technical Specifications

• Part Number: 26497P‑21
• Model: U3815A
• Country of Origin: USA
• Weight: ≈ 0.05 kg (approx. 1 lb shipping weight)
• ECCN: 7A994; Schedule B: 8518.90.3000
• Connectors: Headset jack, radio input, dual intercom, remote PTT connector
• Controls: In-line potentiometer for listen level; 25-turn internal transmit level potentiometer
• Mounting: Four-point mount with grommets; no fasteners included
• Certifications: Built under David Clark’s FAA-compliant QMS (ISO 9001:2015, AS9120B)