Eico HF 52 Manual Of Instructions Download | Manualshive

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Summary of Contents for HF 52

Page 1: ...MODEL HF 52 50 WATT INTEGRATED HIGH FIDELITY AMPLIFIER CTIONS ELECTRONIC INSTRUMENT CO INC 84 Withers St Brooklyn 11 N Y Price 1 00 HF 52 1 ...

Page 2: ...ape output unaffect ed by any controls 50 WATT INTEGRATED HIGH FIDELITY AMPLIFIER undesirable couplings The hum and noise level achieved is on a par with that of well designed lower power inter grated amplifiers and will be found entirely satisfactory even by critical listeners The output stage and the out put transformer the type of power amplifier circuit and the power supply components are iden...

Page 3: ...ualizer Curves RIAA New AES NARTB ORTHO RCA Columbia original LP London American 78 European 78 Sensitivity Phono magnetic _8 millivolts for rated output on PHONO LO input 27 millivolts on PHONO HI input Tuner TV Tape Auxiliary 0 6 volt for rated output input Impedances PHONO LO PHONO HI 47K AUX TUN TV TAPE 2 2 meg Tape Recorder Output 1000 ohms unaffected by tone loudness or level controls Hum No...

Page 4: ...binet not recommended pro vide sufficient separation to minimize mechanical speaker vibration reaching the amplifier The minimum separation is about one foot CONSOLE MOUNTING a Operations on console front panel preliminary to am plifier mounting 1 Tape the panel template provided to the face of the console so that the top of the mounting surface line on the template is level with the top of the am...

Page 5: ...llows Turn the amplifier LEVEL control to minimum and the LOUDNESS control to maximum Play any recording on your phonograph and turn up the level control to obtain an ordinary listening level Without touching the LEVEL or LOUDNESS controls turn the SELECTOR to TUNER and adjust the volume control on the tuner to obtain approximately the same loudness level as was obtained from the recording In the ...

Page 6: ...eference LEVEL control setting will be suitable for both phonograph and tuner listening If the volume control of the tuner has been odjusted as described In the High Level Inputs sub section of the Electrical Connections section When selecting inputs which do not have level adjusts such as tv or a crystal cartridge connected to the AUX input it may be desirable to set the LEVEL control to zero bef...

Page 7: ...cy balance and whether an overall Improvement is being obtained The article in High Fidelity magazine referred to previously provides valuable criterions for determining whether bi ampllficatlon is worthwhile for a particuior system RECORD EQUALIZATION SELECTION Record Label Equal Izatioh Since Spring 1954 Record Label Equalization Since Spring 1954 Record Label Equalization Since Spring 1954 Alli...

Page 8: ... 0 JM c 8 2 2 O o E d a V Z vs d dJ aa w o d n CL C _ I I u Z DC h CO z d c o h o dj vs d c o o dj vs u Z X O h 4a z U O CSI U Qa 3 La VS d O 3 o t 4 vs i I TJ D O O o E c d o u 4 d r vs d XTJ o d E d CL C O C 4a X o O jQ 2 aU O c c o 2 a a VS 2 Z C O dJ u I o C u d w 3 c vs k 4 3 vs c O C d o U c o d 2 E D 2 2 c 4 E D 3 Q vs C TJ C vs CJ d S 2 o d c o 4 o o 2 D 4 k VS VS O o O US c o MM 4m o 3 k ...

Page 9: ...00 _ K 00 N rzcor cQ CN CQCN ...

Page 10: ...O 1 CD r 0 t s X Sox C 0 o S 2J CD VI 0 k J VI O O 0 Vi C JC o D 0 J2 c i D CO a JC X ife V O o 0 4 r c 1 o o VI O c o Vi c t Vi O i ro g UL o V I 0 fe 0 1 0 Vi U D 0 C o V 4 3 C C o VI Vi O X X D s tft O o x1 O lo 0 x 5 VI O 0 X u O o o VI 4 C h i 2 s in I CD U VI O C t X CN CO CO Vi J O _ VI Vi J 4 O 00 5 os o X o Ci E a o to o Q tJ c o 00 a s Tf Vi Vi Vi 0 o Q O a _ X o c VI 2 VI 4 0 U i 2 f CD...

Page 11: ... D J TP U tA c tS 0 D o U 4 0 j Q D C IN s O A o 0 0 c O t tJ O 1 C Jr C O o u O 0 1 o CM a i4 G o Q U S MO o 0 k 0 o w O V i a 00 XU to m CO 2 to O CM E P O o JO 0 k o o 0 c c o U CM d cs to LU M3 U LLl O E 2 O o JO X 0 k D A CM O O 0 c c o U CM CD O C I o g w d 15 US O d u z e 2 d CL r A d l O k k o D tJ C O u IV O C O 4 U O Q_ c Q O c p tA CD 0 O f 0 0 0 u P c c o CL D to C U to t l o 0 p f 1 S...

Page 12: ...Q O 5 o o o C 3 tA C c d 2 c D T i PO 3 l C lA tA o lA O X O o I to i2 3 T3 E O X E 00 0 5 1 a tA O X 13 O c O o CN N3 t S 3 5 O tA 3 5 E o 4 J2 D 3 E a _2 o E tA gi5 o J 5 3 U D X 3 O o so o p E _2 o c O 3 o o 3 tS c y tA 3 o E 5 17 y X o CN Q 9 O 1 I 2 3 3 iS c cn fN eo I CD X il 3 O O Jfl 00 3 tA CO s E tL D CD tZ U tA C 3 4 1 g tA to O o Q V JA O JC r tA w D i O 8 CN CO s O Jjp c o o 2 I tA D ...

Page 13: ... O CN CN CN X X u 00 O CQ N CN cO CO X h i u OOfN N JN O OOr IN CN fl3 cQcDC0 QiiCN CNCN Ci h l Si QifiCkiCiiQ 1 6C 50 OK ...

Page 14: ... G O U X X M CM to CM M CM K CM o z p u 2 T9 sQ P T9 T9 S C D sSC O to J o N o c c o E U 2 c T3 o 5 _g v T5 w O Is M siC O P o i5 o i JO o o i E Ms O o c o o v S D A c J Is U D I CM J 4s QJ w ns p P u M V o 4s u I CM E 0 b D U CM 1G VI 4 U M JiC O O C _P O J9 CL O P VI VI 4 W O P c c p c o U VI TJ t E C3 O O p5 r TP Of 2 g X O _i2 4 ss T5 Js t 7 2 J 2 CM O C T c C9 is wS C M 4s f o X p O np P S S ...

Page 15: ...CO lO o cs r ini as I c D O 0 CO lo O _ CN 5 X X Qc X 00 K o CS n S CD CM CN V_ ry CNr CSCONi KOWlCOOsCN 00 N U 20 CO CD CD 03 n n XH oc xXi X m O CM CM CO 5 OM CM Q_ Qi OTJ 8C ...

Page 16: ... 3 u in 0 N 00 CM E o 3 x S o c g c O o ra O 3 E 4 n 3 N tXZ 4 I no no CM t l o o OOP Q P CO C t S g G 0 _I U X tA o u o p 1 CO CM 3 S c h i o 8 4 I s o 2 0 2 2 4 4 O 0 4 O CL no tA O M P o iA o u 4 c o u 0 CO CM I g CN 3 X in D 3 3 r o G G tA c o hC tA o 0 c c o o CO o X to X I CO _x 4 u 0 in Mb O G 0 N O 0 c c o U l in O V CO X K Vv K 9 0 no Q m o p y T in CO 1 M 1 3 i 03 CM o u 1 isr p X u I CM...

Page 17: ...IOC ...

Page 18: ... CM 1 to E o CM X CO I CO X VI o V Q a 7 o o A o I o E P 0 2 JQ O o CM U n TJ 0 IE 0 O to 4 r o lA fmBHt t o o D _2 u O 3 TJ TJ e O u J 0 0 0 4 o 0 c U o 0 CJ 3 E o 0 o 0 C 4 o 0 c c to uJg O CJ U c 3 O U O U Im fc J o U 1 CO so CM mJU 2 O Oi d o P O o o TO 6i TO i U lZ lZ V TJ to M T3 CM E 0 0 L 0 k O 0 o 0 o 4 o 0 c 0 6 iz lO on o 4 tA A 0 k o 2 lO fx tA is x S 0 o 0 oJi 3 o Q 4 a X 00 o 4 _ o 0...

Page 19: ...rPO OODCN KJOhs COCO co cQ ca oi oixt r CO CN CN CN D ca Qs Uck x S CNKCXD CN sQiO 00 C0 p COcQ X Qd U OO OCOO a Ooo ro lOr o pjL CO o ctiUUUU i cuL K 12C ...

Page 20: ... 3 i2 u o D C CM C I o U g X 4 ojy HcA E 2 CM ki k tA lA a _ tA k 0 O 8 2 0 4 8 O O k o 1 _ o 5 D k 4 1 O 3 a X CO to CO 07 c c o o U y a h _ s Jg O CO o 0 A in O D tA o 2J C MO no c CM MO a o o c P tA rx d a 2 a CO CM 4 O 0 _ T3 gS 1 o u 3 u 2 O to a 7 X CO CO X o o o c c o U E P X a I V 2 Co uu I tiij o M MO CM 0 X tG o CM 4 ii CO os o tA XIU V tA tA 0 o to I CO D _ tA C f _0 ai D D _ 2 O 3 oii ...

Page 21: ... Q 3 t u o to D O E B Q 3 o u t 0 CS D c o to c 5S O c o o to 5 to O o 42 o o to 4 u 1 W o o Ui 3 O O Q o L to C CO t y X U UJ U z J to to I z o u oc o u I o to E o cs b c 3 O GO C o to B E c 4 _ I X S 8 c to O X P o P I E o i o ai Z I ID o to o B p E lO _ at ft A C E t 3 to O E L P 1 c to o a cu 3 to I C O 3 X O u o O OO u S LU X Z O O 22 o o o u O to O 8 O CN 2 P 4 P C to 3 O 4 O P Z o c o p c X...

Page 22: ... o k O 3 OJ O X tA 6 W o 3 tA c 0 tA u J XU k 03 0 c o c 0 C 0 0 0 E a a 4 0 0 k 0 13 A tA k 0 a M k4 k X 0 jt 5 0 tA c 0 44 3 k 0 JC 0 t 0 0 aM CJ CJ 0 4m 0 0 EL 03 uT 0 4 Lp U C 4m 4m OJ c o c o o o QJ c c o o D QJ 4I D 8 2 OJ c o o pE tA 4 c 5 2 tA a to Q UJ 1 UJ Qm S O u z o tA C 13 c d o c o OJ u c o k OJ X 7 OJ o E C OJ 0 13 c 0 o i2 0 0 OJ 2 u 2 S o 4J 0 o tA C w u I ja 3 tA u 4 Q k 8 E 3 0...

Page 23: ...1 si I c 5 Kj H g Hi iu t Hi UJ s ...

Page 24: ...perating within their ratings with the 117 V tap so long as the line voltage does not exceed 124V If the line voltage In your location exceeds 124 V it will be necessary to rewire the power transformer primary connections for 125 V operation To do this It will be necessary to remove the bottom plate and connect the black green lead 125 V power transformer primary tap to the fuse post terminal XFl ...

Page 25: ...de by pass capacitors for short 7a If no or low B voltage on tube check decoupling path for open or defective R48 R49 R50 R51 and filter capacitor C25or C24 Check also for excessive bias vol tage from fixed bias supply 8 If wiring and circuit components Including the tube check O K and B voltage is excessive check the de coupling path for short or defective R48 R49 R50 R51 Also check for low bias ...

Page 26: ... V5 V6 over biased or not drawing current Repair Repair See trouble shooting typical stage adjust bias and bal ance control c Low voltage Excessive current drain In amplifier See trouble shooting typical Stoge adjust bias and bol ance controls Defective V7 Replace Excessive phono hum VI defective Replace Fil leads dressed too close to grid lead Dress ft 1 leads away from grid lead C24 defective Re...

Page 27: ...5 38 5 32 220 KQ 6 38 38 32 220 KQ 8 0 65 1 2 1 4 lOQ EL34 6CA7 1 0 65 1 2 1 4 lOQ 2 7 filament 47VDC 6 3 VAC between 38 KQ V6 3 470 435 240 50 Q 4 470 435 1 00 18 5Q 5 37 5 38 5 32 220 KQ 6 38 38 32 220 KQ 8 0 65 1 2 1 4 lOQ GZ34 1 _ 2 fil 470 5 0VAC to pin 8 remove tube to measure above 200 KQ V7 3 470 440 4 393 50 Q 5 6 393 50 Q 7 8 ffi cath 470 440 above 200 KQ Al resistance measurements excep...

Page 28: ... 3 41016 screw 4 40 X 1 4 8 10444 R2 res 120K 2 1 2W 10 1 41026 screw 4 40 X 1 4 brass 2 10414 R4 res 1 8KQ 1 2W 10 1 41027 screw wood 4 X 3 8 brass 2 11526 R5 6 res 200KQ 1 2W 5 2 41028 screw 8 32 X 1 4 10434 R7 14 res 2 2MQ 1 2W 10 2 42000 washer 3 8 lock 6 10423 R8 16 res 2 2KQ 1 2W 10 2 42001 washer 3 8 flat 5 11504 R9 res 90KQ 1 2W 5 1 42002 washer 6 lock 45 11527 R1 0 41 42 res 100KQ 1 2W 5 ...

Page 29: ...o to o o OOOOOiOiOiOiOiOOOiOiO S3 TOTOTOTOTOTO TOTOTO eocococotohototototo COM 0 000 JCSOi4i COtO 1 1 3 3 3 D osss at3 Ds f S fSS 56 SSaooq 2 9 g o P O O to n S X gP to 4 n to o O O 3 7 t d O O CO Ji I O O ftl X O X S O o to O o to M M M M tvJ 7 m m rt H H H K H o o Ol c5 o o B o H D is n CO n I O yo TfJ 7Q 70 Fo fo K3 to o o D ti rp fD iO t l CA VI p p n A O A V P CD p n y iO Vk CA V 9 9_ O 3 5 o...

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