Western Electric 407A-4 Скачать руководство пользователя страница 127 | Manualshive

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Содержание 407A-4

Страница 1: ...9t 6P 1Yesf ern Electric 407A 4 RADIO TRANSMITTING EQUIPMENT Instruction Bulletin No 946p...

Страница 2: ...WESTERN ELECTRIC 407A 4 RADIO TRANSMITTING EQUIPMENT Instructions For Use Preliminary Instruction Bulletin No 946P...

Страница 3: ......

Страница 4: ...ircuit Adjustment 12 Tube Filament Adjustment 13 D 99120 Bias Rectifier Unit 15 Circuit Description 15 Special D 99114 Rectifier Unit 16 Circuit Description 16 Special D 99116 Control Unit and Control...

Страница 5: ...Amplifier Neutralization 45 Third Radio Frequency Amplifier Tuning 46 Final Adjustment of the Second RF Amplifier 47 Adjustment of Sliders on R61A 48 Adjustment of Feedback and Associated Circuits 49...

Страница 6: ...76 Power Equipment 78 Water System 78 LAMP FUNCTIONS 78 Operation Lamps 78 Overload Lamps 81 SUPPLEMENT ARY NOTES 83 Apparatus Information 83 Fuses 83 Indicating Lamps 83 Vacuum Tubes 83 Rectifier Tub...

Страница 7: ...s No 9 Vacuum Tubes No 10 Relay Settings No 11 Gap Settings SCHEMATICS Fig 1 Power System Fig 2 Unit H D 99119 Rectifier Tube Unit Fig 3 Unit K D 99120 Bias Rectifier Tube Unit Fig 3A Unit G Special D...

Страница 8: ...ignal and for amplifying the modulated carrier and transmitting it to an antenna The unmodulated carrier power which is normally sup plied to the antenna from the radio transmitter is 50 kilowatts App...

Страница 9: ...on nor can dangerous voltages be applied with the doors open In addition to the removal of high voltage interlocks are provided which require ground ing of the high voltage parts The operation of the...

Страница 10: ...struction bul letin and on the drawings In the units of the transmitter these designations are marked either on the piece of appara tus itself or adjacent to it The first letter of the des ignation in...

Страница 11: ...ivid ual units are briefly summarized below D 99110 Oscillator Amplifier Unit A This unit con tains two 702A Oscillators the three stage radio frequency amplifier the three stage audio frequency ampli...

Страница 12: ...e is also a part of this assembly D 99120 Grid Bias Rectifier Unit K This unit sup plies bias to the modulating amplifier and power amplifier Special D 99775 Condenser and Switch Assembly FC50P This a...

Страница 13: ...nser for filtering the output of Unit G its charging resistor and associated contactor ijigh Voltage Filter Choke Coil L52P This coil to gether with the above condenser forms the plate supply fil ter...

Страница 14: ...uit the control circuit and the radio frequency cir cuit These component circuits usually extend through several of the transmitter units The identification of a particular part of a circuit and its a...

Страница 15: ...these transformers The regu lator returns to the minimum voltage position when CB 65P is opened and adjusts itself in a few moments a er power is applied to the position which results in the proper pl...

Страница 16: ...P and S54P In addition 230 volt single phase power is supplied through CB58P to the motor of T57P CB61P and S55P control the application of power to the bias rectifier for the modulating amplifier for...

Страница 17: ...applied This resistor is automatically shorted by contactor S51P after C51P is charged to the operating voltage R56P and R57P are surge limiting resistors which prevent excessive currents from flowing...

Страница 18: ...pplication of high voltage to the rectifier until the filaments are energized and the motor switch D5H is closed Protection from accidental contact with the high volt age circuits of the rectifier is...

Страница 19: ...in crease the spring pressure or increase the armature gap The correct operation of relays SlH S6H requires an accurate adjustment of the relays and the proper function ing of the copper oxide rectif...

Страница 20: ...the filament volt age room temperature and phase relation between filrunent voltage and anode current A constant three phase voltage of 460 volts 2per cent is automatically maintained at terminals 34...

Страница 21: ...ct connections to terminals 34 35 and 36 are obtained try the same procedure on tubes V3H and V5H When one tube is phased properly the others should be correct if the internal wiring of the unit is co...

Страница 22: ...ctor PR2K It supplies a potential of approximately 600 volts d c for biasing the grids of the 232B tubes in the D 151135 modu lating amplifier Some adjustment of this voltage may be obtained by means...

Страница 23: ...matic Figure 3A Circuit Description The plate rectifier circuit of this assembly contains the six mercury vapor tubes VlG to V6G inclusive connected in a three phase full wave circuit The tubes conver...

Страница 24: ...uits of Units C and G A single phase full wave bias rectifier using two mercury vapor tubes is also mounted in this assembly This rectifier supplies grid bias potential to the two water cooled vacuum...

Страница 25: ...se of this supply as well as across any phase of the regulated 460 volt supply which is brought in to terminals 165F 166F and 167F from the rectifier tube unit Trans former TlF connected across one ph...

Страница 26: ...n water relay S2W This transformer steps the voltage down to 12 volts Contacts C2 and E2 on the Rota x flow controller close the circuit to the relay when the water flow reaches 40 gallons per minute...

Страница 27: ...15 of the distribu tion panel and operates contactor S57P Assuming switch D21H to be closed the filament circuits of rectifier units H and K are energized The filament c ircuit of Unit G is energized...

Страница 28: ...form that function The control circuit continues through the other set of contacts S4F to light ElOF Rectifier Filament Delay and then goes to DllF Osc Amp Control 11 It will be noted that delay make...

Страница 29: ...cuit Power Interruptions When the rectifier filaments are energized 230 volts fTom the control circuit are applied to auto transformer LlF which in turn supplies 115 volts to terminals 1 and 2 of Sl6F...

Страница 30: ...er condition of charge on C2 the delay in Sl closing will be intermediate between instantaneous and 18 seconds Sl6F is energized at the same time as S2F S4F is operated through the contacts of Sl6F an...

Страница 31: ...eaker CB65P Voltage is applied to one contact of SSF to one side of the circuit breaker motor through terminal 63F and to the reclosure relay Sl2F Voltage is also applied through the back contact of S...

Страница 32: ...osing sequence is again started by the auxiliary contact of the breaker between 58F and 59F If however the breaker is tripped out before the timing motor resets Sl2F the breaker will remain open until...

Страница 33: ...erating D57P Overload Tripping Circuit The plate circuit breaker CB65P is equipped with both instantaneous and inverse time a c tripping elements and d c undervoltage release coil In case of large ove...

Страница 34: ...mp relay S51F Plate Regulator The plate voltage regulator is a self contained unit 460 volt 3 phase power is supplied from the distribution cabinet to operate the motor 230 volt single phase power is...

Страница 35: ...which is the other side of the 230 volt power supply With DllF in the TEST position there is no automatic delay for the protection of the rectifier tubes in the oscillator amplifier Be sure that the f...

Страница 36: ...ater from the reservoir and for ces the water through the vacuum tube cooling jackets and a cooler through which the water passes from the vacuum tub es back to the water reservoir Becaus e the vacuum...

Страница 37: ...ck and easy observation and resetting The pressures at the entrance to the inlets to the insulat ing tubing are indicated on a duplex pressure gauge in the control unit The pumps furnished are capable...

Страница 38: ...heating system and so utilizing its heat in cold weather Installation Notes When the piping has been completely connected the sys tem should first be checked and flushed thoroughly with clean water To...

Страница 39: ...out 90 pounds If pressure does not come up examine pump motor and starter for proper elec trical connections Stop pump MPl lW and close pump outlet valve z2 1w Start second pump MP1 2W and examine for...

Страница 40: ...l4 1W Close first radiator return valve Zl7 1W If necessary readjust valve ZlSW till water flows steadily from vent cock Zl6 2W Make record of cooler manifold pres sure MSW Examine second radiator pip...

Страница 41: ...er return valves Zl7 1W Zl7 2W Cooler inlet valves Zl4 1W Zl4 2W Waste cocks Z7W Z2C For electrical and mechanical reasons no piping is attached to waste cocks Z2C and Z7W It is therefore necessary to...

Страница 42: ...until flow meters WDlW WD2W indicate normal flow Continue pumping until level in tank stops falling If necessary add enough distilled water to bring the level up to about 16 inches from the inside bo...

Страница 43: ...er minute through the power amplifier branch using valve Z4W This adjustment is wholly independent of weather The sec ond circuit in which the water loses heat is through the cooling unit radiators Th...

Страница 44: ...for normal operation no manipulation is required when shutting down or restarting the water cool ing system In cold weather the hot water may be circulated through the house heater by opening valves...

Страница 45: ...ling unit blower by closing switch D4 1W or D4 2W The cooling system should be regulated to keep tank thermometer Ii3W reading between 90 and 125 degrees Fahren heit Then amplifier inlet temperature I...

Страница 46: ...ircuit Description The carrier frequency of the transmitter is supplied by either one of two 702A oscillators which are mounted in the slide rail assemblies in the upper compartment of the oscillator...

Страница 47: ...in of this stage and thus the output to the transmitter is controlled by changing the setting of the R F Output11 control R4A which varies a bias voltage applied to the grid of VlA through the resist...

Страница 48: ...is indicated by the potential drop in RlOA and is obtained with the test meter switch in position V2 Plate XlOO The plate of V2A works into the tuned transformer L3A The tuning is accomplished by the...

Страница 49: ...shunted by the adjustable condenser C21A the control of which is desig nated Output Circuit Tuning 3rd Amp Audio Amplifier The amplifier which provides the necess ary audio fre quency modulating volta...

Страница 50: ...ternating current from trans formers T2A and T3A A single phase full wave rectifier em ploying mercury vapor tubes Vl2A Vl3A Vl4A and Vl5A with Vl6A as a spare supplies all screen and plate potentials...

Страница 51: ...ime should be approximately one hour Thereafter the lights should be alternately ON and OFF for periods of about 30 seconds the exact time depending upon the ambient temperature Make preliminary adjus...

Страница 52: ...ier11 switch in the OFF position and set the RF Out put control on zero before proceeding with the neutraliza tion of the third amplifier Third Radio Frequency Amplifier Neutralization Connect the rad...

Страница 53: ...odulating amplifier The filaments of this ampli fier should be off while adjustments are being made on the oscillator amplifier Clos e links D6A and D7A and set the RF Outputn control at zero Close th...

Страница 54: ...iating amplifier and check the Output Circuit Tuning V211 control for a maximum indica tion on this meter It is important that the Plate Circuit Tuning V211 and Output Circuit Tuning V211 control sett...

Страница 55: ...ithin the specified limits of 2 to 4 milliamperes it will be necessary to adjust the lower slider on R61A Raising this slider increas es the grid current as well as the RF Output of the transmitter Af...

Страница 56: ...b e approximately 32 db at 100 per cent modulation When the tube is replaced the audio input level for 100 per cent modulation should be 4 db The difference of the two input levels 32 db and 4 db or 2...

Страница 57: ...50 cycles The final value of R44A should not be less than 500 ohms when all adjustments are completed When the tests in dicate no spurious oscillations for this value of feedback the Feedback Adj cont...

Страница 58: ...y output of V3A in the oscillator amplifier unit and grid bias modu lated by tubes V4A and V5A in that unit VlC and V2C are neutralized by the series circuit L5C C5C The radio fre quency input is appl...

Страница 59: ...ge of either tube TlC and T2C are the filament trans formers the voltage to which is controlled by the regulator transformers T3C and T4C These are in turn fed from two phases of the trans former T5C...

Страница 60: ...fier unit C32C RF By Pass Tuning is then ad justed to minimum deflection on the cathode ray tube If a minimum is not obtained within the range of C32C new taps are chosen on L31C until the required mi...

Страница 61: ...ely the radius and length of the coil in inches The connection to the coil from terminal 63 is then made at a point approximately one third of the way up fro the ground connection of the coil Until th...

Страница 62: ...D C3D and L5E C5E permit checking the phases of the grid voltages on the tubes by con necting a cathode ray oscill oscope at jacks J2D and J2E Coils Ll2D and L9E neutralize tubes V2D and VlE by anti r...

Страница 63: ...his protective device are the rectifier tube VlD with its filament transformer T4D and filament by pass condens ers Cl2 1D and Cl2 2D the shunting resistance RBD for this tube with a disabling switch...

Страница 64: ...re tower radiators through concentric transmission lines and suitable coupling circuits The coupling equip ment and its arrangement are specified individually for each installation and are not describ...

Страница 65: ...nna coupling unit connect to the main line a radio receiver equipped with an output meter 3 At the far end of the shunt line vary the short circuit point until the receiver meter indicates a null For...

Страница 66: ...ssion lines and to LlD Adjustment of Load Impedances This consists in finding the proper tap on coil LlD to give the desired load impedance approximately 600 ohms for the combined output of both tubes...

Страница 67: ...The parallel resistance at this point is controlled entirely by the reactance of coil L2D and L2D should be adjusted to give a value of 2800 t 50 ohms for this resistance Then adjust condenser ClE Pla...

Страница 68: ...ern with the axes of the ellipse horiz ontal and vertical The phase may be varied by adjusting the 11Grid Circuit Tuning control which varies Cl4E If a 90 degree relation is not obtained at any settin...

Страница 69: ...cessary with the Power Amplifier in operation Condenser ClE is next tuned by means of the Plate Cir cuit Tuning Vl11 control until a cathode ray oscilloscope connected to the 11Vl Grid and Vl Plate ja...

Страница 70: ...r transformers It is usually found however that best results are obtained with the specified biases of approximately 485 and 1200 volts With the required carrier output ob serve the plate current of t...

Страница 71: ...res the protective circuit should operate to remove and reapply the excitation at intervals provided switch Dl2F Protective Circuit on the control unit is in the 110N11 position Note the minimum readi...

Страница 72: ...as instantaneous line regulation as well as on the adjustment of the transmitter This equipment is designed to permit 100 per cent modu lation with no carrier shift provided the line voltage regu lati...

Страница 73: ...onnected at jack JlD V2 Plate Increase the audio input until on the downward swing of modulation the radio frequency ampli tude comes just to zero Inspect the wave form to make cer tain that there is...

Страница 74: ...een satisfactorily completed and all readings and s ettings logged proceed with the adjustment of Unit C for reduced power operation as follows Open the main circuit breaker CB51P Latch contactor S3E...

Страница 75: ...mum plate current by means of C6C If how ever the total plate current is less than the limits the clip should be moved to include more turns After the proper plate current has been obtained the bias v...

Страница 76: ...ll reduced power contactors S3C S3G S3E and S63P should now be in the operated posi tion Rectifier Filaments In order to allow proper preheating of the rectifier tubes the filaments should be energize...

Страница 77: ...ept when servicing the associated cooler Close the switch D4 1W or D4 2W depending on the particular cooler it is desired to operate Press the push button on line starter Dl lW or Dl 2W depending on t...

Страница 78: ...t As soon as all amplifier filaments and b ias rectifiers have been energized and if link switch D30C is in the D30 1C position the control circuit of the high voltage rectifier for the power amplifie...

Страница 79: ...nit G Enter the 5 kw enclosure 4 Operate the following switches the complete func tions of which are repeated below a D5G a DPST switch located in the 5 kw enclosure which when closed applies full vol...

Страница 80: ...sup ply between 50 kw and 5 kw high voltage transformers c D6C a SPDT switch located in Unit C which con neots the plate circuit of this unit to e ither the 50 kw filter condenser assembly FC50P or th...

Страница 81: ...to the oscillator heaters Leave in ON position D2A Power Supply Circuit Breaker Circuit breaker in power supply to oscillator amplifier Leave in 110N11 position except when working in this unit D3A Po...

Страница 82: ...fier DlC Door Release Momentary push button to oper ate electric door latches Energizes the latches only if both rectifier switches DlG and DlH have been operated to ground the high volt age D2C to Ga...

Страница 83: ...n to start and operate trans mitter D3F Amplifier Filaments11 Operates contactors to energize tube filaments of modulating and power amplifiers The operation of this switch is effective only if the wa...

Страница 84: ...er are tied in to the control circuit of the rest of the transmitter Leave in the Op erate position Dl2F 11Protective Circuit This switch removes the control power from the protective circuit Leave in...

Страница 85: ...condenser assembly FC50P should b e kept closed except when it is desired to remove plate voltage to neutralize Water System Safety disconnect switches D3 1W and D3 2W for the cooler motors should be...

Страница 86: ...DlOF Osc Amp Fil 11 lights when DlOF in ON E5F 11Rect Fil 11 lights if DlF 11Rect Fil 11 is ON S57P is operated and if D5H is ON energizing relay SSH and permitting thermostat to control the B lower M...

Страница 87: ...unit is inside the enclosure When an enclosure is not provided but backs are used on all units9 this unit has gate switches on the doors El6F 11H V Rect Gate lights after El5F provided the high volta...

Страница 88: ...ts If E24F is l ighted E27F indicates the b reaker is in the OPEN pos ition The breaker may be closed by operating K2F Cir cuit Breaker Reclose E26F will then light E28F Plate Voltage Regulator Min an...

Страница 89: ...lay SlE E42F High Voltage Rect Vl extinguished by the aper ation of arc back relay SlH E43F High Voltage Rect V211 extinguished by the aper ation of arc back relay S2H E44F High Voltage Rect V311 exti...

Страница 90: ...or removing these lamps and 319B Tool for removing the la mp caps General Electric Mazda No 46 Lamps are used to il luminate the meters Vacuum Tubes The types of vacuum tubes used in the 407A 4 Equipm...

Страница 91: ...d When first received all 255B and 315A Vacuum Tubes should be tested after first warming the tube filaments as described above by operating the tubes in the rectifier at reduced plate voltage for 5 m...

Страница 92: ...The Foxboro Rotax Flow Controller is employed as a protective relay to safeguard the water coole d vacuum tubes in the power amplifier against damage if the rate of flow of water should fall below th...

Страница 93: ...replacing fuses The Rotax instrument is provided with a three valve manifold and two vapor traps The manifold assists in the installation checking and servicing of the instrument The vapor traps maint...

Страница 94: ...r release shipping stop screw sufficiently to permit raising the stop and turning it to a position permitting full scale travel of the float stem Tighten shipping stop screw Replace high pressure cham...

Страница 95: ...eedle point screw in center of filling plug see Fig 10 Pour mer cury into instrument through open filling plug until pen rests slightly below zero line It is well to rap instru ment wfth the hand duri...

Страница 96: ...urns below zero there is too much mercury in instrument Carefully and slowly withdraw mercury through needle drain at the bottom of loop below the two chambers of the instru ment See Fig 10 Withdraw o...

Страница 97: ...Figure 11 With valve screw tightened remove lubricator screw Insert lubricant in lubricator barrel Replace lubricator screw and tighten CAUTION Valve screw must always be screwed up tight except when...

Страница 98: ...ow pressure gauge are connected to the regulator On the low pressure side of the regulator a manifold is attached and to it are connected outlets to the different points being supplied Each outlet is...

Страница 99: ...y counter clockwise Open one cylin der valve and its cylinder connection valve on each mani fold The high pressure gauge on the regulators should now read about 2200 pounds per s quare inch Turn the r...

Страница 100: ...equal to twice a hundred foot length or 7 cubic feet of gas a pressure decrease of ap proximately 70 pounds will be noted on the high pressure gauge MlN The 2 5 8 inch diameter harmonic shunt connecte...

Страница 101: ...hould be replaced before the supply therein is completely exhausted Change it when the in ternal pressure is about 50 pounds per square inch above the operating pressure of the system to which it is c...

Страница 102: ...coil by first removing the armature stop bracket held to the front of the magnet by two screws and then removing the two screws securing it to the back plate Operating Coil The coil is designed for c...

Страница 103: ...the arc box and are held in place by screws readily access ible from the front The contact tips are of silver and will require as little attention as those of the moving contacts Correct spring pressu...

Страница 104: ...breaker should be removed and the con tacts and arc splitters inspected If it appears necessary the s tationary contacts or the arc splitters may be re placed If the moving contacts or other parts of...

Страница 105: ...2 O s c 7 12 Gr i d 2 O s c P l a t e x 10 V l P l a t e x 20 V2 G r i d x 5 V2 P l a t e x 100 3r d Amp G r i d x 10 V3 P l at e x 200 V 4 P l a t e x 200 V5 P l a t e x 200 V6 P l at e x 10 V7 P l a...

Страница 106: ...Unus ed Active Unus ed Turns Turns Turns Turns 55 Open 42 Open 50 Open 40 Open 43 Open 35 Open 37 Open 32 Open 32 Open 29 Open 28 Open 27 Open 24 Open 25 Open 2 Shorted 24 Open 18 Shorted 22 Open 15 S...

Страница 107: ...R 6 1 A R 6 1A R 6 0A R 6 0A R6 2A R6 2 A R 6 3A D e s i g T e r mina t i on On D e s i g na t e d Re s i s t anc e s F i r s t s l id e r t o l owe r e nd r o un d S e c ond s l i de r t o g r ound F...

Страница 108: ...6 volts 3 8 to 4 2 amp s 28 3 amps no mod for 62 5 ohms 2 1 to 2 6 amps 26 volts The antenna current in amperes for 50 kilowatts output is related to the antenna res istance R by the formula Desig No...

Страница 109: ...249B V3A 241B V13A 249B V4A 241B V14A 249B V5A 241B V15A 249B V6A 310A V16A 249B V7A RCA 837 Vl of 702A Osc tfl 247A V8A RCA 837 Vl of 702A Osc tf2 247A V9A 345A D 151135 VlC 232B V2C 232B Mod Amp D 9...

Страница 110: ...E R SC R4C Rl G t o S 6H 02 i n 0 12 in T ABLE 1 1 C u r r e n t T h r o ug h S hunt t o Op e r a t e 5 t o 6 a mp s 6 t o 7 a mp s 1 a mp 1 0 3 a mp s 2 0 a mp s A C 1 0 a mp s D C w i t h p o s i t...

Страница 111: ......

Страница 112: ...TION g PANEL I CB51P POWER INPUT j Lj o 460 VOLTS j_ o 3 PHASE I 103 T o o l I l N U I COOLING UNIT MOTORS PUMP MOTORS L 13D I Li OD WIW D4P DIP D5W I I I I I I I I L D6W D2P fl_J W2PL LJ D3P u N N N...

Страница 113: ...I 164 ib3 0 t 0 r I I _ III 0 S III J J E I O t J PR52P I D 57 P SIC 1 o l o Cr D58P R57P 60E 1 _ ___ 11 R56P I I I 2 S61P L CSIP I T I T 1 46H l R55P 9 _l41H 68F o 3 I _ _ _ _ _ _ __J 4 FC50P 165 E...

Страница 114: ...0 5C I 164 I I _ I I I 0 I I I N O t 0 I I I PR52P D 57_ P_ 51C f o l o C D58P R57P 60EL o L o ___ I I R56P I I I I 2 6BF o 3 4 I T T T 1 46H S61P l C51P 1 R55P 9 _l41H I FC50P __J 163 165 C 8 74 P I...

Страница 115: ...1 7 I I 86 F R 5H S5H V5H D l 2 H 37 F 42 DPSIP I I DSW 1 8 I I 85 F j D 20 H R6H S6H Dl 3 H 34 3 5 38 K 35 K o5 D21H I I ol D21H 03 D21H R 7 H 1 9 84 F R8H 4 6 F C 5 0P NEG TERM 4 2 PR52P 4 1 9 FC50P...

Страница 116: ...O 1 2 1 DP50P cr40c _ l 3 1 K 122 DP50P cr4 1 1 o T 7 K H 6 T 5 K H6 4DK 3 1 3 2 33 39K 34 1 5 9 f PRIK _ _ __ _ _ __ 1 60 f 46 50 1 61 f F i g u re 3 U n i t K D 99120 B i as Rec t i f i e r Tube U n...

Страница 117: ...2 3 4 e1 osc r _ t t t t t R I G R2G S I G E 84 F 82 F 90 osc r 6 _ _ _ _ _ __ ___ o o 38G J 1 23DP50P n __ _ 4 35G 1 r o 12 r 84 06G r R5 6G RS SC C2G R5 4G R5 3G 36 R5 2G RS IC I 37 2 r 49 C I f OG...

Страница 118: ...5F I 8 I I 1 0 O I IN 1 I el I I I I I I I I I I I I I I Q_ Q_ Q_ u u I l Q_ l 0 0 0 I I 0 0 iii N N o Q_ 0 0 0 Q_ Q_ Q_ 0 Q_ 0 0 0 0 0 I I I I I I I I 0 N O O 0 u u 0 I I I iii I I 1 6 1 I ol E31F E3...

Страница 119: ...o Cl O I R3 I I I I I I I I I I J I J 0 9 J J w 11 I I O t t I I I I I I I I I I I T e l t 1 O O O E45F E46F S45F S46F 217 216 215 D4F I I 1 I Q_ Q_ 0 0 Q_ Q_ 0 Q_ 0 I 0 I J ll F i gu re 4 I I ll I 1...

Страница 120: ...S VACUUM TUBE SOCKET X RECTOX RECTIFIER W JOOR LOCK UlllT A D 99110 OSCILLATOR AldPUFIER UNIT C D 151135 llODU ATING AldPLIFIER UNITS D Al D E D 99118 POVIEJl AldPLIFIER UNIT F D 99116 CONTROL UllIT m...

Страница 121: ...CHEMATIC 03G 07GOll IIIIIII 39 02 G I F 1 JIOHC1 11E C llCV T IHOtCATIQt IIII _ _ _ _ _J D 99114 H V 8 BIAS RECTIFIER UNIT MODIFIED ll ll CT1F1fll TV6f AllCIAC INO C TIQH IIIL_ _ _ _ I S H I I _ _ _J...

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