Berlant Concertone 508

The Berlant Concertone 508 (also labeled as American Concertone 508 or under dual Berlant/TEAC branding) is a transitional vintage open-reel tape recorder from approximately 1961–1963, produced during the period when Berlant Associates (founded by Emmanuel "Bert" Berlant) was merging with or licensing production to TEAC in Japan. This model represents the shift from U.S.-made Concertone designs to TEAC-influenced units, often badged interchangeably or sold as TEAC equivalents (the 508 was the mono counterpart to the stereo Concertone/TEAC 507).

It was a mono (monaural), semi-professional/prosumer deck with tube-based electronics, aimed at high-fidelity home use, broadcasters, or small studios. The 508 emphasized reliable performance, industrial build quality, and compatibility with evolving stereo standards (though mono-only in this variant). Surviving examples are quite rare, often appearing in vintage sales as collectibles or restoration projects, sometimes with dual labeling reflecting the merger era.

Key Technical Specifications 

Tape Speeds: 3.75 ips and 7.5 ips (standard for high-fidelity consumer/prosumer decks of the early 1960s; balanced play time and quality).

• Frequency Response: Approximately 40 Hz to 12 kHz (or better; aligned with similar transitional models like the Concertone 507 series).

• Signal-to-Noise Ratio: Around 55 dB (respectable for tube-era mono designs with good shielding).

• Track Configuration: 1/4-track (quarter-track) record/playback (mono; full compatibility with quarter-track tapes for extended mono recording or future stereo dubbing).

• Heads: 3-head design (erase, record, playback) for off-tape monitoring while recording.

• Reel Sizes: Up to 7" standard (compact and portable-friendly; NAB hubs likely supported via adapters if needed).

• Motors: 3-motor transport (separate capstan, supply, and take-up for stable tension, smooth operation, and low wow/flutter).

• Timing Accuracy / Wow & Flutter: Approximately 0.25% (typical for reliable semi-pro performance in this era).

• Other Features:Tube electronics (characteristic of pre-solid-state transitional models).
  NAB equalization standard.
  Monitoring from tape, level controls, and basic inputs/outputs.
  Likely included basic remote/pause capabilities in some variants.
  

• Weight: Substantial (likely 50–70 lbs, similar to the related 507 stereo model at ~67 lbs; sturdy chassis for durability).

• Original Price: Approximately $520 (premium positioning for a quality mono deck during the early 1960s).

Design and Build Overview

The 508 featured a robust 3-motor direct-drive transport for precise tape handling, minimal maintenance, and excellent mechanical stability—hallmarks of late Berlant/early TEAC engineering. It used vacuum-tube amplification for warm, high-headroom sound typical of the era, with a focus on clean mono recording suitable for home hi-fi, voice work, or broadcast applications. The quarter-track heads allowed for longer recordings on standard tapes compared to half-track formats.

As a transitional model, it bridged U.S.-designed Concertone prosumer machines (e.g., the 505/507 series) and full TEAC production. Some units show dual Berlant/TEAC labeling, reflecting the company's sale or merger phase. It shared mechanical similarities with the 507 (stereo version) and later badged units like certain Concord or TEAC R-2000 variants.

Compared to earlier pure Berlant models (e.g., 1401 or 20/20 with 10.5" reels and 15 ips capability), the 508 was more compact and consumer-oriented, prioritizing 7" reels and lower speeds for everyday hi-fi use while retaining semi-pro build quality. It was praised in vintage contexts for industrial reliability and sound quality rivaling contemporaries.

Today, these are highly collectible due to rarity, with common restoration needs including recapping, tube replacement, belt/pulley checks (if any), and head alignment. Service info is scarce but overlaps with related TEAC/Concertone models from the era.