Fisher ProVance Medalist II (R-20) Receiver (1963)
The Fisher ProVance Medalist II (R-20) is a stereo receiver introduced in 1963 as part of Fisher's mid-range Medalist series. It was a tube design that combined high-fidelity performance with good looks, and audiophiles liked it during the early days of stereo in the home.
It has a slide-rule tuning dial, a walnut veneer cabinet and a warm tube sound. Collectors and tube audio fans still look for it.
Specifications
| Feature | Specification |
| Model | ProVance Medalist II (R-20) |
| Year of Production | 1963–1964 |
| Power Output | 20 watts per channel (stereo, RMS) |
| Impedance | 8 ohms |
| Tuner Bands | AM, FM |
| Output Tubes | (4) 7591 (push-pull configuration) |
| Front Panel | Gold-anodized aluminum |
| Cabinet | Walnut veneer with solid wood trim |
| Tuning Display | Slide-rule analog dial with illuminated pointer |
| Inputs | Phono, Tape Monitor |
| Controls | Source select, Tone controls, Balance, Loudness |
| Switches | Stereo/Mono toggle, Tape Monitor switch |
| Dimensions | 19" W × 7" H × 14" D |
| Weight | 38 lbs |
Key Features
- AM/FM Tuner: High-sensitivity tuner with precise tracking for its era, delivering clear radio reception.
- Push-Pull Output Stage: Utilizes four 7591 tubes in a push-pull configuration for improved power efficiency and reduced distortion.
- Slide-Rule Tuning Dial: Iconic analog tuning scale with a smooth vernier drive for accurate station selection.
- Gold-Anodized Front Panel: Distinctive upscale finish that resists tarnishing and adds visual elegance.
- Walnut Veneer Cabinet: Hand-finished wood enclosure that complements mid-century home audio furniture.
- Tape Monitor Function: Allows users to switch between live input and tape playback without external patching.
- Stereo/Mono Switch: Enables mono FM reception for improved signal clarity under weak reception conditions.
Historical Context
The ProVance Medalist II (R-20) was released in the late 1950s, when stereo broadcasting and recordings were gaining mainstream traction. Fisher already had a name for its tuners and tube amplifiers. It positioned the Medalist series between the entry-level and flagship models, with strong performance at a more accessible price.
The R-20 combined a tuner, preamp and power amp in one chassis, and it played a role in popularizing the integrated stereo receiver. Fisher used premium components and careful circuit design, and receivers like the R-20 set benchmarks for sound quality in home audio.
The R-20's sound is warm and detailed, with a rich midrange and smooth high frequencies. Vintage audio enthusiasts still think highly of it.
Sound Signature
The Fisher R-20 sounds like a classic tube amplifier: warm, smooth, and musically engaging. The push-pull 7591 tube output stage gives it ample dynamics and clarity, and the tube-based preamp adds a lush, analog character. The midrange is particularly lush, which suits vocals and acoustic instruments. Bass is tight and controlled for a tube receiver of its era, and the highs are detailed without being harsh.
It pairs well with high-efficiency speakers (90 dB+), and it sounds good even at moderate power levels.
Maintenance and Restoration Tips
Like all vintage tube equipment, the R-20 needs careful maintenance to keep it running reliably and to preserve its value.
Common Issues:
- 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 drift out of tolerance; checking and replacing as needed improves stability.
- Tube Replacement: The 7591 output tubes are no longer in production but are available NOS (New Old Stock) or through modern equivalents. Preamp tubes (e.g., 12AX7, 12AT7) should be tested or replaced if noisy.
- Power Transformer: While generally robust, some units may exhibit hum or voltage irregularities due to insulation breakdown—monitor for overheating or low output.
- Control Cleaning: Potentiometers and switches often become noisy; use contact cleaner designed for electronics (non-residue type) and exercise controls repeatedly.
Recommended Servicing Steps:
1. Perform a full safety check (leakage current, grounding).
2. Replace all electrolytic and coupling capacitors.
3. Test or replace all tubes.
4. Clean controls, jacks, and switches.
5. Align AM/FM tuner sections for optimal reception (requires proper equipment).
6. Check bias and output balance after tube replacement.
> Note: Always have restoration work performed by a technician experienced with vintage tube gear to avoid damage.
Collectibility and Market Value
The Fisher ProVance Medalist II (R-20) holds a collectibility rating of 7/10. It is not as rare as Fisher's flagship models like the 500 or 800 series, but it is appreciated for its build quality, sound, and design.
- Unrestored, working condition: $300–$400
- Fully restored with new capacitors and matched tubes: $500–$600
- Original, mint condition with documentation: Occasionally exceeds $650 at auction
Units with original tubes, clean dials, and unmodified circuitry command higher premiums.
Conclusion
The Fisher ProVance Medalist II (R-20) is an example of early 1960s high-fidelity engineering. It has solid performance and the warmth of tube audio. With proper care and restoration, it still works for both listening and collecting.
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