Ampex AG 500

The Ampex AG-500 is a professional solid-state reel-to-reel tape recorder introduced in 1967, designed for high-fidelity audio recording and studio use.

Key Technical Overview:

• Tape Speeds: Two-speed transport available with pairs 3¾ and 7½ ips, or 7½ and 15 ips.

• Tape Format: Supports ¼-inch wide magnetic tape with options for full or half track, two track or quarter track configurations (mono or stereo).

• Heads: Supplied with 3 precision Ampex heads in a four-position assembly with options for additional playback/sync heads.

• Electronics: Fully solid-state circuits with modular individual electronics chassis for each channel, allowing easy maintenance.

• Controls: Remote control operation for all transport functions, pushbutton control for record, play, rewind, stop, fast forward, and edit.

• Playback and Record Equalization: NAB and CCIR standards with automatic switching based on speed.

• Frequency Response: 30 Hz to 15 kHz ±2 dB at 7½ ips; 30 Hz to 18 kHz at 15 ips.

• Wow and Flutter: Less than 0.15% RMS at 15 ips.

• Signal-to-Noise Ratio: About 55 dB at 15 and 7½ ips.

• Output: Adjustable between +8 dBm or +4 dBm.

• Transport: Precision milled die-cast top plate for maximum tape stability and minimal flexing.

• Size and Weight: Portable with rugged Samsonite cases or rack mountable; units weigh about 42 lbs (single channel) or 52 lbs (two channel).

Additional Features:

• Tape lifters (manual), tension arm automatic shutoff at end of reel.

• Eddy current clutches for smooth tape handling.

• Illuminated VU meters switchable between record input and playback output.

• Front-facing headphone jack for monitoring.

• Optional accessories include stereo/mono mixer amplifier and microphone preamps.

Applications:

• Designed for broadcast, studio, remote, educational, commercial, industrial, and government use.

• Provides versatility, portability, and professional-grade recording and playback quality.

This model is noted for its blend of robust mechanical design and advanced electronics of the period, making it a highly respected professional reel-to-reel tape recorder with flexibility for various multi-track analog recording tasks.​

In summary, the Ampex AG-500 is a sturdy, feature-rich, and reliable solid-state reel-to-reel tape recorder designed for professional and semi-professional audio environments in the late 1960s.