RCA Pro/Broadcast MI-26256, MI-11452A 1960 - Metal/ rack mount

Radio Corporation of AmericaProfessional Broadcast or Industrial Audio equipment.

Western Electric 274B vacuum tube

The RCA MI-11452 series Remote Intercom Speaker typically tests at approximately 50 ohms (pair)Lot Valuation Breakdown (Estimated for 2026)

Primary Value Drivers ($1,100 – $1,500):

RCA MI-11452A Intercom Stations: As the most liquid items in the lot, these typically sell for $350–$375 for a set of three in similar cosmetic condition.

RCA VU 180 Meter: Agenuine vintage RCA meter in its original bezel is valued at roughly $200–$350 for restorers of classic compressors or consoles.

Power Supply Pair (WP-33 & 580): These heavy-duty broadcast supplies are valued for their transformers. Untested, theyUntested, they generally bring $250–$400 as a pair forSecondary Components ($300 – $600):

Relay and Isolation Units (MI-26277-A & MI-26256): These modular broadcast units are niche; they typically sell for $125–$200 each to specific collectors.

Inductor and Loose Parts:

Value $4500The RCA MI-26256 and MI-11452A are highly sought-after vintage broadcast and studio intercom units from RCA's "MI" (Manufacturing Item) line. They are highly collectible among audiophiles and historians of vintage recording gear.