Related Manuals for Conrad-Johnson TEA2
Summary of Contents for Conrad-Johnson TEA2
- Page 1 Conrad-Johnson Owner’s Manual TEA2 Phono Preamplifier conrad-johnson It just sounds right.
- Page 2 Thank you for selecting the conrad-johnson TEA2 triode equaliza- tion amplifier as the phono stage for your audio system. The TEA2 is capable of remarkably faithful recreation of the dynamics, tex- tures, tonalities, and ambience of live musical performances. We believe that you will experience the excitement of discovery in hearing more from your favorite LPs than ever before.
- Page 3 TEA2 Family of Phono Stages The TEA2 is available in High Gain and Low Gain versions. Both versions share a common circuit approach featuring a zero loop feedback circuit with passive RIAA equalization. Gain is provided by two single ended triode stages in both versions. Both use a pair of 12AX7s for the input stage (with the two triode sections con- nected in parallel to minimize noise).
- Page 4 Warranty For Conrad-Johnson Components Conrad-Johnson Design, Inc. will provide service under warranty to the original owner on products sold new in the United States for the lesser period of three years from the date of purchase by the origi- nal purchaser, or five years from the date of shipment to the au- thorized conrad-johnson dealer.
- Page 5 Service Department conrad-johnson design, inc. 2733 Merrilee Drive Fairfax, VA 22031 The conrad-johnson service department can also be reached by e- mail at service@conradjohnson.com, by phone at 703-698-8581, or by fax at 703-560-5360. Service If your conrad-johnson audio component requires service, repack it using the original box and packing material and ship to the Service Department address above.
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Page 6: Electromagnetic Interference (Emi)
5/-10% of the nominal rated voltage. Electromagnetic Interference (EMI) Considerable care has been taken in the design of the TEA2 to minimize its susceptibility to radio frequency interference and other forms of EMI. Choice of materials, physical layout, grounding prac-... - Page 7 <power>: Move the toggle switch labeled power to the up position to switch the phono preamplifier on. A time delay auto-muting cir- cuit is incorporated into the TEA2 to suppress turn-on/turn-off tran- sients. All outputs are grounded via relays for approximately 2 minutes after the unit is turned on in order to suppress warm-up transient noises.
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Page 8: Cartridge Loading
The switches are numbered from 1 to 4 with switch 1 being the left-most (viewed from the back). The TEA2 is delivered preset at the factory for an input impedance of 47 kOhms. Loading can be adjusted as follows:... - Page 9 Tube Replacement The TEA2 circuit employs three twin-triode vacuum tubes – three type 12AX7 (V1, V2 and V3) for the TEA2HG and two 12AX7s (V1 and V2) and one 12AU7 (V3) for the TEA2LG. The brands of tubes we supply have been chosen by first selecting those brands which...
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Page 10: Absolute Phase
This will be the case if the number of phase inver- sions is even (or zero). The TEA2 is phase correct (non-inverting). If your system has an odd number of inversions then you must add one phase inversion. - Page 11 The warm up period can be expected to last about fifteen minutes. Questions: If you have questions about the installation or function of your TEA2 do not hesitate to call Customer Service at (703) 698-8581. TEA2 Owner’s Manual...
- Page 12 Net Weight: 14 lb net Fuses The TEA2 power transformer is protected by a fuse located in a tray in the ac power inlet on the back of the chassis. To access the fuse, first unplug the unit from the wall outlet, then remove the ac power cord to reveal the pull out tray in the inlet.
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