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Summary of Contents for Thaedra

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Page 2: ...UttHORIZED 丁 AMPER NG OR MODiFY NG TO TH S MERCHAND SE AUTOMAT CALLY VO DS ALL WARRANT ES 5 WARRANTY PER OD FOR ALL G A S CO lNC FACttORY WiRED PRODUCTS S5YEARS CO ERING BOttH PARTS AND LABOR 丁 RANSPORTA丁 ON CHARGES TO AND FROM THE DEALER OR FACTORY ARE EXCLUDED 6 WARRANttY ON ALL G A S CO INC PRODUCTS USED iN ANY O丁 HER FASHiON OttHER THAN STATED ABOVE SHALL REDUCE THE WARRANttY T ME PER10D AND O...

Page 3: ... m pletely outside the audio stream contrOl absolutely a d c voltages The result is that after the input coupling capacitors in the phono circuit THAEDRA is θ θ ρ θ rεθ 77 D C ε ο ο たσ the only preamplifier in existence vvhich is THAEDRA is unique lt has a truly low noise Head Amp for use with lou〆 output moving co cartridges lt is a fact that the moving coil cartridge traces in the same manner as...

Page 4: ...nse must be exercised when operating it 丁he maximum output at clipping is greater than 10 Volts RoM S This converts to an overload point of 3mV at the input giving approximately 40dB Of headroon σ わ 0ソθthe standard operating level tthis corresponds to an output levelto a power amplfier Assuming a 1 5V sensitivity for 200 Watts per channel vvhich Would drive it to approxirnately 2qOθθ Иァ 75 Therefo...

Page 5: ...a vertical position 丁his wi cause overheating of the unit With the power svvitch in the D F F position plug the line cord into any 105 125V 50 or 60Hz outlet Oο 770ι turn on the power s パ tch until a other connections have been connpleted COu EN ERICE Otr LEIS Six convenience outlets have been provided on the rear panel to power associated components in yOur system Of these outlets four are contro...

Page 6: ...zz へ i be heard if this condition does occur The source irnpedances of theれvo main outputs are each 5 0hms lovv enough to permit the use of shielded interconnecting cables up to 1 00 feet in iength Since its specifications are met driving 600 0hnn loads 丁HAED RA is capable of dri宙 ng over 1 00 power amplifiers each rated at 75K Ohm input vvith no increase in distortion Two pair of stereo output ia...

Page 7: ...E NPUTS 丁hree stereo pairs are pro宙 ded abeled TAPE l and ttAPE 2 Located on the rear panel and ttAPE IN located On the front panel These inputs having identical irnpedances and sensitivities as the TUNER input are for connection to tape recorder line outputs PHONO NPUttS Two sets of phono inputs are provided one labeled MAG PHONO is for use with conventional magnetic phonograph cartridges and one...

Page 8: ...nels should be kept together and tvvisted a few times f hum still persistsr again be certain that ο arge power transformers are near the eft side of THAEDRA SPECiAL NOTES ON HUM REDUC丁 iON Probably the most frustrating problem vvith lovv output moving coil cartridges is hum A great percentage of the time it is the result of irnproper insta ation and lack of care when orienting components Unfortuna...

Page 9: ...rcu its This feature prevents turn on voltage irnpu ses from reaching the power amp ifier Power turn off is instantaneous when the off button is pressed You should a ways wait at least 6 seconds before turning the unit on again in order to perrnit relay recyc ing Prior to turning ttHAED RA off it is advisabie to turn down the evel from very oud settings LEVEL CONTROL This contro s the output oudne...

Page 10: ... ο オ カ outputs A B BOth Channe s are combined and the mixed Mono resultant is connected to bOιみ outputs STEREO 丁his the normal position connects the left input to the eft output and the right input to the right output REV ThiS position connects the eft input to the opposite right output and the right input to the opposite left Outputi simp y reversing the STE R EO mode descr bed above TAPE MONITOR...

Page 11: ...ignal selected by the source selector push buttons PHONE TUNER AUX etc 丁o record the source se ected s19na s onto recorder 2 the ttAPE COPY switch must be in any position other than l 2 and F 2 Figure l THAEDRA SER 0 L00P TONE CONTROL CHARACTER STiCS HEADPHONES Either of the two HEADPHONE iacks aCCepts phOnes with impedances of 100 0hms or more The upper iaCk ieaves the power amp rier connected wh...

Page 12: ...microvolt 20 20KHz Less than O 04 microvolt 400 20KHz Approximately 500 0hms 42dB 1000Hz 47KOhms 100pF shunt 1 6 mil 市olts lKHz Approximately l1 0 millivolts lKHz Less than O 6 microvolt 20 20KHz Less than O 25 microvolt 400 20KHz Approximately 500 0hms 20dB 1000Hz Level control dё pendant 53K Ohms full C C W 36K Ohms fu IC W 200 millivo ts l KHz Essentia y infinite Less than 5 nlicrovolts 20 20KH...

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