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EICO HF-20 Model 20 & Unbranded Vacuum Tube Mono Amplifier with Merit Transformers

Currency:CAD Category:Electronics / Vintage Electronics Start Price:10.00 CAD
EICO HF-20 Model 20 & Unbranded Vacuum Tube Mono Amplifier with Merit Transformers
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[?]Live Online Auction Starts In 2026 Oct 13 @ 10:00 (UTC-07:00 : PDT/MST)
Preview: October 10th (10am - 5pm)
Pick ups: October 14th - October 16th (10am - 5pm)

Preview and Pick up location: 27294 Fraser Hwy, Aldergrove, BC V4W 3P8

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Two open-chassis mono vacuum-tube audio amplifiers comprising an EICO Model 20 (HF-20) integrated high-fidelity amplifier and an unbranded amplifier assembled on a galvanized metal chassis. Introduced in the mid-1950s, the EICO HF-20 combines a preamplifier-equalizer and a 20-watt Ultra-Linear Williamson-type power amplifier. Its gold-tone faceplate carries selector, level, loudness, bass, and treble controls. The chassis is marked for two 12AX7/12AD7/ECC83, two 12AU7A, two 6L6-series/5881, and one 5U4-series tube positions; all seven sockets are empty. The unbranded amplifier incorporates Merit Transformer Line components, cylindrical capacitor housings, several installed glass tubes, and controls labeled Tuner, 45, 78, PA, Volume, Bass, and Treble. Rear fittings include a fuse holder, convenience receptacle, and screw-terminal strip with handwritten impedance markings.

Contents: EICO HF-20 integrated amplifier and one unbranded vacuum-tube amplifier
EICO model: Model 20 (HF-20) mono integrated high-fidelity amplifier
HF-20 rated output: 20 watts; 34 watts peak
HF-20 speaker taps: 4, 8, and 16 ohms
HF-20 power requirement: 105-125 volts AC, 50/60 cycles; 100 watts
HF-20 specified tube complement: 2 12AX7/12AD7/ECC83, 2 12AU7A, 2 6L6-series/5881, and 1 5U4-series
HF-20 tubes included: None; seven tube sockets are empty
Transformer marking: Merit Transformer Line
Period: Mid-1950s EICO HF-20 design
Condition: As pictured.