Eico HF 12 Instruction Manual page 3

Inverse Feedback: 20 db
Stability Margin: 12db
Damping Factor: above 8, 20 cps - 15 kc.
Speaker Connections: 4, 8, and 16 ohms.
Sensitivity (input for 12W): mag. phono - 5mv; tape head - 2mv; tuner, auxiliary - 0.5 v .
Hum & Noise Level (below 12W): mag. phono - **60db; tape head - **50db; tuner, auxiliary - 75db .
Tone Control Range: at 10kc, :f:13db; at 50cps, ±16db .
Tubes: 3- ECC83/12AX7, 2- El84, 1- EZ81.
Size: 35/8" high, 12" wide,
81/4" deep.
Weight: 131bs.
* Meosured from high level Inputs with tone controls set at "flat" positions.
**
Inc Iudes effect of compensation.
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