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Summary of Contents for Margules SF220-20th
- Page 1 SF220- 20th Audio preamplifier...
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Page 2: Important Safety Instructions
Retain the safety and operating (such as a paper clip, coin, or staple) accidentally falls instructions for future reference. inside the unit, disconnect it from the AC power source immediately and contact Margules Audio for further ATTACHMENTS: only those attachments instructions. -
Page 3: Important Safety Note
9. GROUNDING OR POLARIZATION: As a safety antenna system, take extreme care to avoid touching the feature, the unit may be equipped with a polarized power lines or circuits; contact with them could be fatal. alternating current line plug in which one blade is wider 14. -
Page 4: Fcc Information For User
Margules Audio which provides guidelines for proper grounding and, in specifically disclaims responsibility for any such damage. particular, specifies that the cable ground shall be connected to the grounding system of the building as • Power Cord: The removable power cord provided with close to the point of cable entry as practical. - Page 5 • Reorient or relocate the receiving antenna. this could be fatal. Because of the hazards involved, antenna installation should be left to a professional. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from where the receiver is connected.
- Page 6 Q damping, the key factor in regulating voltage for those stages. Good regulation The Margules SF220 series combines the superior sound reduces the loss of signal integrity that occurs when the of vacuum tubes with innovative circuitry that pushes signal itself shifts the amplifier’s operating point.
- Page 7 Active filament damping Connections To minimize the microphonics effect produced by the IMPORTANT: The AC Power supply should be the last tubes, the SF220 has a circuit that actively damps the connection made. ilament. The SF220 is a preamplifier with unbalanced inputs and outputs.
- Page 8 The AC outlet is a high current output (600 Watts) and is buttons; one is a toggle ON/OFF switch and the other is a energized when the preamplifier is ON. This outlet is sequential input selector (5). designed so the remote control can turn the unit ON and OFF.
- Page 9 Figure 1. Front and back of the SF220...
- Page 10 Figure 2. Interconnection between the SF220 and U280 Figure 3. Integrated system with line noise suppressor...
- Page 11 Characteristics: WARNING Frequency response: 5-400 khz Electrical hazard! Misuse or failure to follow instructions properly may result in personal Total harmonic distortion: <0.014% max injury or death! Maximum output level: 30 V CAUTION Signal to noise ration: >80db No risk or personal injury;...
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Page 12: Limited Warranty
Any cause other than a product defect. In the event that the owner needs to return the unit to Margules Audio for service or repair of a possible defect, 2. Cleaning, initial set-up, check-ups with no defects he must do the following: found, or charges incurred for installation, removal or reinstallation of the product. - Page 13 Or visit Margules Audio at the address in the end of this manual with your product. If you want to send it the cost is on your account. Limitation of Implied Warranties implied warranties, including warranties merchantability and fitness for particular purchase, are limited in duration to the length of this warranty.
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