Fisher 500-T Stereo Receiver (1959)

The Fisher 500-T is a landmark stereo receiver introduced in 1959, representing one of Fisher's earliest forays into integrated stereo amplification with a built-in FM/AM tuner. Renowned for its robust construction, advanced engineering, and rich tube sound, the 500-T played a pivotal role in bringing high-fidelity stereo audio into the homes of audiophiles during the dawn of the stereo era. With its combination of a powerful tube amplifier, precision tuner, and elegant wood cabinet, the 500-T remains a sought-after classic among vintage audio enthusiasts.

Specifications

Feature	Specification
Model	500-T
Brand	Fisher
Category	Tube Stereo Receiver
Year of Production	1959–1962
Power Output	32 watts per channel (stereo)
Impedance	4, 8, and 16 ohms (switchable)
Output Tubes	(4) 7591
Rectifier Tube	1 x GZ34
Other Tubes	9 total (including preamp and tuner sections)
Tuner	Built-in FM/AM tuner with multiplex stereo
Inputs	Phono, Auxiliary, Tape (via external adapter)
Preamp	Built-in active preamplifier
Cabinet	Solid wood, classic mid-century design
Dimensions	19" W × 7" H × 13" D
Weight	Approx. 45 lbs

Historical Context

The Fisher 500-T was introduced at a transformative time in audio history—the early 1960s, when stereo recordings and FM broadcasting were gaining momentum. As one of Fisher’s first integrated stereo receivers, the 500-T combined a high-performance tube amplifier with a sensitive FM/AM tuner and multiplex stereo decoding, all in a single chassis. This integration made it a convenient and high-quality solution for consumers eager to experience true stereo sound.

Designed by Avery Fisher, a pioneer in high-fidelity audio, the 500-T featured custom-designed transformers and a meticulously laid out circuit to minimize noise and maximize dynamic range. Its use of the relatively rare 7591 output tubes provided a balance of power and linearity uncommon in receivers of the era. The 500-T quickly earned a reputation for exceptional build quality, musicality, and reliability, helping to establish Fisher as a leader in the burgeoning hi-fi market.

Sound Signature

The Fisher 500-T delivers a classic tube amplifier sound: warm, smooth, and richly detailed. Its musical midrange and extended, controlled bass response make it particularly well-suited for jazz, classical, and vocal recordings. The GZ34 rectifier contributes to a soft, dynamic attack, while the 7591 output tubes provide clarity and authority without harshness. Even by modern standards, the 500-T’s tonal balance is highly regarded for its natural presentation and engaging listening experience.

Maintenance and Restoration Tips

Due to its age, the Fisher 500-T typically requires careful inspection and servicing before regular use. Common issues include:

Aging Capacitors: Electrolytic and paper capacitors degrade over time and should be replaced to prevent failure and restore performance.
Resistor Drift: Carbon composition resistors may have drifted in value; checking and replacing as needed improves stability.
Tube Replacement: While original tubes may still function, the 7591 output tubes and GZ34 rectifier are often replaced for optimal performance and reliability.
Cleaning Controls: Potentiometers, switches, and jacks should be cleaned to eliminate crackling and intermittent connections.
Power Transformer: Though generally robust, the transformer should be tested for proper voltage output and signs of overheating, especially if the unit has been heavily used or modified.

It is recommended to have the 500-T serviced by a technician experienced in vintage tube equipment. Proper restoration can extend the life of the unit and preserve its collectible value.

Collectibility and Market Value

The Fisher 500-T holds a collectibility rating of 8 out of 10. Its significance as an early stereo receiver, combined with its excellent sound and build quality, makes it a favorite among vintage audio collectors. Fully restored units in excellent cosmetic and electrical condition typically sell for $400 to $800, with higher prices for rare finishes or original packaging.

Units with original tubes and documentation may command a premium, especially if verified as low-hour or unused. Given its historical importance and enduring performance, the Fisher 500-T remains a smart acquisition for both users and collectors of classic audio gear.