Overview
The KLH Model Eighteen 053771 is a vintage FM multiplex tuner manufactured by KLH R&D Co. of Cambridge, Massachusetts. Featuring an all-transistor design and compact form factor, this unit delivers straightforward FM stereo reception ideal for vintage audio enthusiasts and mid-century audio system builders. The tuner combines efficient circuitry with practical controls for reliable performance across the FM band.
Key Features
- All-transistor construction for stable, reliable operation
- FM multiplex stereo reception with RCA fixed and volume-controlled outputs
- Built-in analog tuning meter for precise frequency selection
- Compact desk-top form factor (9.25″ × 5.5″ × 4.5″)
- AC 117 Volt operation with integrated power supply
- Designed to integrate into vintage audio systems and components
Technical Specifications
- Band: FM (88-108 MHz)
- Technology: All-transistor
- Output Configuration: RCA stereo (fixed and volume-controlled)
- Power Supply: AC 117 Volt
- Controls: Tuning knob, on/off switch, output level
- Display: Built-in tuning meter
- Dimensions: 9.25″ L × 5.5″ D × 4.5″ H
- Weight: 3 lbs 15 oz
- Connector Type: RCA phono jacks
- Model: Eighteen (Model 18)
- Part Number: 053771
Typical Applications
- Vintage audio system restoration and assembly
- Mid-century hi-fi and stereo equipment collections
- Compact FM reception for retro audio setups
- Secondary or accent tuner for classic audio enthusiasts
- Audio museum exhibits and cataloging
Compatibility & Replacements
Compatible With
- Vintage stereo receivers and amplifiers with RCA inputs
- Mid-century audio system components (1960s–1970s era)
- Standard AC 117 Volt household power outlets
- FM broadcast band antennas (dipole, room, or external)
Replaces / Drop-In Replacement For
This Model Eighteen 053771 is a direct component match for KLH Model Eighteen applications. Verify compatibility with your specific audio system setup before ordering.
Works With
- Any stereo amplifier or receiver with RCA line inputs
- Passive FM antennas and active FM antenna boosters
- Vintage tape decks, turntables, and phonographs (via shared amplifier)
- Standard residential AC electrical service (117V/60Hz)
