Dynaco AF-6 Stereo Tuner Component Info

Dynaco AF-6 Stereo Tuner

Description:

Specifications:

IHF Sensitivity (noise and distortion down 30 dB @ 100% modulation): 1.75 µV

Input required for 40 dB S/N @ 100% modulation: 2.0 µV

Input required for 50 dB S/N @ 100% modulation: 5.0 µV

Frequency Response before de-emphasis: 30 Hz to2 KHz, ±1 dB

De-emphasis time-constant: 75 µSec

Frequency Response: 20 Hz to 15 KHz ±1 dB

Harmonic Distortion and IM Distortion @ 100% modulation:

Mono - 0.5% (0.25% typical).
Stereo - 0.9% (0.5% typical).

Capture Ratio: 1.5 dB.

Muting threshold: 4 µV.

Output @ 100% modulation: 2 volts.

Ultimate signal to noise ratio: 65 dB @ 100% modulation.

Drift: less than 0.02%.

Selectivity: 65 dB alternate channel.

AM suppression: 58 dB.

Stereo switching threshold: 4 µV.

Stereo Separation:

@ 1000 Hz, 40 dB.
@ 50 Hz, 30 dB.
@ 10 KHz, 30 dB.

19 KHz and 38 KHz subcarrier suppression: 50 dB minimum.

67 KHz SCA carrier suppression: 80 dB minimum.

Antenna input: 72 ohm unbalanced and 300 ohm balanced.

Sensitivity: 50 microvolts with external input.

Selectivity: 20 dB @ 10 KHz, 55 dB @ 20 KHz.

Image Rejection: 60 dB.

Total Harmonic Distortion: Less than 2%.

Intermediate Frequency: 455 KHz.

IF Rejection: 70 dB @ 1000 Hz.

Tuning Range: 535-1620 KHz.

Antenna Provisions: Built-in ferrite rod. Connections for external antenna and ground.

Front panel controls: Power/Volume; Tuning; Circuit Mode (off, muting, muting and Dynatune^TM); Dual function filter switch (FM: Mono, Stereo Filter, Stereo / AM: Narrow, Medium, Wide); Output (FM, AM).

Dimensions: 13-1/2" wide x 12" deep x 4-1/4" high.

Shipping weight: 13 lbs.

Power consumption: 12 watts, 120V or 240V, 50/60 Hz AC.

Wade Burns, Erno Borbely (Dynatune^TM patent), Hans Frank, Sid Lidz

Year Introduced:

1972

Price:

$269.00 kit
$395.00 assembled

Comments:

Dynaco's first AM-FM tuner. Innovative design highlighted by the Dynatune^TM auto-tuning circuit, and a variable-bandwidth AM section to improve listenability of noisy signals and fidelity of clean ones. Introduced in 1972.