SOLD - FOR SALE: Heathkit Tube High Fidelity AM Tuner model AJ-21 - early 60's
Item #649298865Info: Heathkit Tube High Fidelity AM Tuner model AJ-21 - early 60's
||Cash, Money Order, Interac/EMT
||4.08 (kg) Calculate Shipping
||9 - Excellent (?)
May 01, 18 7:15pm (PST)
Edited: May 18, 18 5:02am
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This tuner is circa 1963 and works perfectly. I will sell it with a 60 day warranty because it is in such good shape and works flawlessly. It is mono so 1963's interpretation of high fidelity is a little different from today's standards. It has two outputs, fixed or variable. Super retro styling. It is a great unit but I have too much gear and something has got to go. Will be posting more tuners shortly so check back.
With the exciting new styling of charcoal grey enamel on its steel cabinet and ivory-colored bezel and lower front panel, the Heathkit AJ-21 AM Tuner proudly awaits display in any room in your home. This superb successor to the AJ-20 brings you high fidelity AM reception at a budget price and in a size convenient to everyone...for bookshelves, tables, etc.
This self-powered unit has three tuned stages for high sensitivity and a full wave voltage doubler detector for lower distortion. The "fidelity" switch gives you a choice of maximum selectivity or maximum fidelity. One of the two outputs is the variable level cathode follower type for the direct driving of power amps, regardless of cable length...the other output is fixed for use with preamplifiers. Has built-in rod antenna and provision for external antennas. Flywheel tuning and edge-lighted slide-rule dial.
SPECIFICATIONS—Tuning range: 550 kc to 1600 kc. Intermediate frequency: 455 kc. Sensitivity (for 20 db quieting IHFM standards): 1000 kc—8 uv. IF bandwidth (6 db down): NORMAL—2 kc.; MAXIMUM—18 kc. Output impedance (cathode follower): 5000 ohms. Input signal for 1 volt output: 2.5 uv—30% mod, 1000 kc. Image ratio: 1000 kc—50 db. Harmonic distortion (750 uv 95% mod.): Less than 1%. Hum and noise (500 uv—30% mod.): 40 db. IF rejection: 1000 kc—35 db. Tube complement: 2-6BA6, RF amplifier-IF amplifier, 1-6BE6, Oscillator-mixer, 1-12AU7, AF amplifier-Cathode follower, 2-Crystal Diodes, Audio Detector, 1-Silicon Diode, Rectifier (Power Supply), 1-No. 47 Pilot Lamp (Dial Illumination). Power supply: Transformer operated (fused). Power requirements: 117 V AC, 50/60 cycles at 19 watts. Dimensions: Overall—including cabinet and feet, 4-15/16" high x 13½" wide x 6" deep. Shipping Weight: 9 lbs.
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