Related Manuals for Tube Technology SeM-02
Summary of Contents for Tube Technology SeM-02
- Page 1 THE SEER PREAMPLIFIER BY TUBE TECHNOLOGY ~ USER'S MANUAL ~ Applicable to PHONO & LINE MODEL TT PART No. SeM-02 Printed in England 1st Edition - May 1994...
- Page 2 Introduction Thank you for selecting the Tube Technology Seer Preamplifier. Please read through this manual so you will know how to operate your Seer Preamplifier properly. After you have finished reading this manual, please put it away in a safe place for future reference.
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Page 3: Table Of Contents
Contents Getting Started Unpacking your Seer Pre-Amplifier 1 - 1 Mains Connection Connecting The Seer to the household mains supply 2 - 1 Wiring a Mains Plug - UK 2 - 1 Earthing Arrangements 2 - 2 Installation Installing & ventilation of your preamplifier 3 - 1 Audio Connection - Rear Panel 4 - 1... - Page 4 Conventions This manual uses the following conventions; Bold indicates emphasis or a minor heading. Italic Bold refers to a sub heading of a chapter. This symbol refers to Notes containing important information set off from the text. THIS SYMBOL REFERS TO CAUTION MESSAGES AND PROCEDURES WHICH IF NOT OBSERVED CAN LEAD TO DAMAGE OR INJURY Contents - 2...
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Page 5: Getting Started
Getting Started This chapter contains information on; Unpacking your Seer Preamplifier Unpacking Your preamplifier is packed in "jiffy-cell" support foam. Grip the top of this foam and simply pull it out of the box. The Seer is then left sitting on its middle support and can be lifted out., All packing should be retained. -
Page 6: Mains Connection
Mains Connection This chapter contains information on; Connecting the Seer to the household mains supply. Wiring a mains plug (UK) Earthing arrangements Your Seer plugs into the mains supply via the IEC socket located on the back panel (Only on Mains Models Serial No. - Page 7 Export units for certain markets have a moulded mains plug fitted to comply with local Wiring a Mains Plug standards. If your mains supply lead does not have a plug fitted, the coloured wires should be connected to the appropriate plug terminals in accordance with the following code. Wire Colour Label on Plug GREEN/YELLOW E or EARTH or...
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Page 8: Installation
Installation This chapter contains information on; Installing and Ventilation of your Preamplifier Ensure that the amplifier is placed in a stable location that is able to accept its weight the Seer weighs approx. 6 kilograms. Installing & It is not recommended that preamplifier is installed in a cupboard or in any enclosed area if Ventilation there is not sufficient air space and ventilation to keep it cool. -
Page 9: Connecting The Seer's Inputs & Outputs
Audio Connection This chapter contains information on; Connecting the Seer's Inputs & Outputs Rear Panel Diagram 1 Audio Connection 4 - 1... - Page 10 Your Preamplifier uses high quality connectors to ensure that maximum signal transfer is Connecting the Inputs possible, therefore ensure that all cables used for connection to the preamplifier are terminated with connectors of similar quality. See Diagram 1 for Rear Panel layout. &...
- Page 11 TUNER These inputs are used to connect the audio output of a tuner or any other audio hi-fi component that produces output voltage within the range 150mV-1 V. PHONO These inputs are suitable for both moving magnet and high output type moving coil cartridges, with outputs in the order of plus 0.5millivolts.
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Page 12: Front Panel Functions
Operating your System This chapter contains information on; Switching your preamplifier ON and OFF. Front Panel Functions Operational Notes Front Panel Diagram 2 Operating your System 5 - 1... - Page 13 Switching Rotating the knob located on the left hand side of the panel (see Diagram 2) in the clockwise On & Off direction switches the preamplifier ON and counter-clockwise switches it OFF. It is always wise to switch on your preamplifier first and then the power amplifier, this always ensures a trouble free warm up.
- Page 14 Some users of tube amplifiers believe that because tube amplifiers take some time to warm up Operational that they should be left on all the time. The Seer preamplifier reaches peak performance levels Notes 15-20 minutes after switch on. Unless absolutely necessary it is not recommended that you leave your preamplifier permanently switched on, this only wastes electricity and tube life, but if necessary the Seer premplifier is quite capable of being left switched on for very long periods of time.
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Page 15: Running-In
Running-In This chapter contains information on; Burning-In your Preamplifier Tube Information Burning-In "Burning-In" is a generic term given to the basic 'running-in' of the amplifier. You may notice a Amplifiers slight 'electronic-smell' from your preamplifier during the first few days of operation. This smell is usually caused by various prints and dyes used on the components which takes some time to evaporate This is quite normal and there is no need for concern as your preamplifier has been extensively soak tested before leaving the factory. -
Page 16: Maintenance
Maintenance This chapter contains information on; Care and Cleaning of your Preamplifier Troubleshooting Changing Mains Voltage All polished metal parts on your amplifier are unlacquered. These metal parts will in time Care & lack lustre due to oxidisation. They can easily be restored to original condition by using a Cleaning mild metal polish (such as duraglit) and a soft polishing cloth. - Page 17 Diagram 3 WARNING ELECTRIC SHOCK HAZARD - HIGH VOLTAGES EXIST WITHIN THE EQUIPMENT EVEN AFTER THE UNIT HAS BEEN DISCONNECTED FROM THE MAINS SUPPLY. Maintenance 7 - 2...
- Page 18 Troubleshooting REMEDY SYMPTOM Preamplifier switches on but there is no 1. Look in the top window of the preamp to see if sound from the system. the tubes are glowing, this is an indicaton that the power supply is operating the preamp. 2.
- Page 19 UNDER NO CIRCUMSTANCES SHOULD AN UNQUALIFIED PERSON REMOVE THE COVERS OF AN AMPLIFIER. IF IN DOUBT PLEASE CONSULT YOUR DEALER OR TUBE TECHNOLOGY. Maintenance 7 - 4...
- Page 20 It is recommend that only an experienced technician carries out this task, or refer to Tube Technology. See diagram 4. This is done by turning the switch located at the base of the Prophet Power supply to the desired position.
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Page 21: Specifications
Specifications Figures given below are for a typical Seer Pre Amplifier Vacuum Tubes ECC83/12AX7WB x 2 (LINE), x 4 (PHONO) Output Voltage 5V max @ 300mV in Frequency Response LINE- 5Hz - 120 KHz @ 1W +/- 0.001dB PHONO - 30 Hz - 30KHz +/- 3dB Input Sensitivity LINE - 300 mV (output 1V) -
Page 22: Guarantee
Guarantee This chapter contains information on; The Guarantee of your Seer Preamplifier Tube Guarantee Registration Claims under this Guarantee This equipment has been fully tested and a full record of these tests made before despatch Guarantee from the factory. Both the workmanship and the performance of this equipment are (*except as set out below) guaranteed against defects for a period of TEN YEARS from the date of purchase, provided that it was originally purchased from an authorised dealer under a consumer sale agreement, at or near the recommended retail price. - Page 23 This equipment should be packaged in the original packaging and returned to the dealer from whom Guarantee it was purchased or, failing this, any other authorised Tube Technology dealer. If it is not possible to return the equipment by hand then it should be sent carriage prepaid by a reputable carrier.
- Page 24 If you have any difficulty complying with these requirements, please contact the manufacturers at the following address: TUBE TECHNOLOGY COMPTON HOUSE DREFACH CARMARTHENSHIRE SA14 7BA Tel: +44 (0) 1269 844771 Fax: +44 (0) 1269 833538 In either case you should state clearly your name and address, the date and place of purchase together with a brief description of the fault experienced.
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Page 25: Tube Renaissance
Tube Tube Renaissance Renaissance A possible expalnation of why tubes may sound One thing should be clearly understood: it is better than transistors. possible to design either a tube or a semicon- ductor amplifier so that over a certain range From the late 1960’s, tubes were largely, of output power its distortion will be so small though not entirely, superceded by semiconduc-... - Page 26 large dynamic range of the audio signal; and sound level. One has no way in advance of the other is that the loading is not always knowing in advance whether there is an resistive. It is under these (usually uninten- exceptionally loud passage coming that will tional) wrong conditions that differences may over drive the amplifier.
- Page 27 current to be applied in order to make be the turn-off time. In audio transistors that collector current flow. Now transistor have been over driven this time may be of the amplifiers normally incorporate a large order of hundreds of microseconds, so this amount of negative feedback, and, when such effect can also give rise to spurious signals.
- Page 28 tion of simultaneous high voltage drop and amplifier design; but there is a simplicity high current occurring for brief periods at about tube circuitry which may appeal to certain parts of the elliptical load line does not many audio engineers, both professional and normally affect tubes, may cause a amateur.
- Page 29 semiconductor amplifier designed to drive an practise; and not only the output stage, but 8 ohm load would usually deliver only half its also low level stages are involved in these. normal power into a 16 ohms, and might be Tubes have a distict advantage in operation damaged if operated with 4 ohms.
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