1962 Telefunken ECC83 / Computor / GAP / R High Grade Smooth Plate tests strong.
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Our users rate Reverb
Fantastic-sounding tube. Excels in High-Fi audio, sounding 3-dimensional, warm, and punchy. In guitar preamps, they bring a richness, slightly softer top end, and creamy breakup. This one is in great condition, with clear logos and lettering, and tests great on a Hickok 539a.
Markings: GI = Dec 1962, Etched Diamond '012'
Telefunken made industrial-grade or computer-grade tubes supplied or labeled for George A. Philbrick Resistors (GAP/R), a pioneering analog computer and operational amplifier company from the mid-20th century. These are highly graded and robust.
Tested on a calibrated Hickok 539a with a digital filament meter and measures plate current.
875 is good.
1250 / .7ma, 1100 / .6ma
I have a very small batch of these and will add more listings based on interest.
| Listed | 14 days ago |
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| Condition | Very Good (Used) Very Good items may show a few slight marks or scratches but are fully functional and in overall great shape.Learn more |
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