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David Clark U3800 Drilled Screened Box | P/N 26497P‑03
Essential intercom interface module for David Clark Series 3800 systems. The U3800 provides full-duplex communication capabilities in a rugged, EMI-shielded enclosure—ideal for core system integration.
Primary Intercom Hub – Serves as the main connection point in Series 3800 configurations
Full-Duplex Audio Support – Enables continuous communication between crew members
Multiple System Connectors – Allows integration with auxiliary modules and expansion ports
Includes Mounting Hardware – Ships with necessary grommets for straightforward installation
Made in the USA – Precision-built to meet aviation standards
The David Clark U3800 (P/N 26497P‑03) is the core module in the Series 3800 intercom system. Designed as the primary hub, it allows intercom connections between multiple crew members and supports full-duplex audio. Built into a rugged aluminum housing that’s drilled and screened for electromagnetic shielding, it ensures both durability and clean signal transmission. Whether installed in aircraft, emergency vehicles, or ground support environments, the U3800 offers proven reliability and simple integration with other David Clark system modules.
Technical Specifications
Part Number: 26497P‑03
Model: U3800
Function: Intercom core module (Series 3800)
Enclosure: Drilled and screened aluminum for EMI protection
I work on old vintage motorcycles, most of which have a fair amount of oil and grease on the engine and transmission parts. These gloves are so much better than the run of the mill cheapo's that can be bought about the same price. Yes, these will tear like any nitrile glove, but these are very, very durable and do a very nice job of standing up to gas, oils, and brake cleaner. I've yet to find any better than these for the price. No complaints whatsoever.
I took the chance of ordering expired Loctite 330. It was jelled up pretty good and generally unusable. It was my fault for trying it and never called the company to complain as I took the chance and that is on me. Order the good stuff.
Had used aviation Camguard for years. Added as well to each quart of oil added to my Lyc 540 SIA5 aerostar engines. Went past TBO with excellent compressions. Oil analysis always normal.
Also add to automobiles but too early to see a benefit.
