Ferrograph 7 Mk2 Owners Manual

Page 1

series seven

L OPERATORS HANDBOOK

FEHROGRAPH

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MID-ODD. ISSUE 4

OPERATOR'S HANDBOOK

Farragmph

SERIES SEVEN. MK 2

SEFIIAL NUMBER 78.800/2 ONWAHDB

THE FERROGRAPH COMPANY LID.
IONDON AND SOUTH SHIELDS

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m: n «(enema CHASSIS mom mm
4?

ll It IS. requtrud to use the Upper trnu Input m addltron to one or
both ul the Lower rnputs,tho Lowur 5 gnals should be adjusted [GIDIVO
to It by therr tndrvldual garn controls and the overall Signal strength
adjusted by the Upper lune control

The reverse wrll apply whun rcuordmg on the Lower track.

Echo Effect

The remarks m page 36 strli apply. partrcmlarly for stereo recordmn.
but When used rnonuurall'y the new lor external conrrcctrons can be
avurdud by use ol the Transler swrtch. hrs ts done on the Upper track
by setting the Transler switch to U ~L and the Upper Output swttch
to "Tapet when the amount of echo wrll he set by the Upper lune
comm! and the luulnv bv the Upper lone controls llrc echo :5 appl red
to tho Lower Track With the Transfer swrtch set to L -U and the Lower
Output swrtch at "Tape".

Quarter Track

Alter recurdrnn stereophonrcallv will a quarter t'ack Instrument on
tracks 1 and 3 the tape can be reversed and another recording made on
tracks 2 and 4 as shown In Fig 10. In all other respect5 the operation r5
exactly as ($9.54?th above.

When retarding rnurvuphonruallv tho usual track sequence In;
1-4739: lhrs rs obtained by ltrst recordrng on Upper on stde A of the
run! (track 1 J At the end of the reel the tape ts reversed and recorded
strll on Upper on srde 8 (track d) Revers-n9 the tape at the end.
recr'rrdtng takes place on Lower cm 5-061 A (trauk 3L lean-mg the. final
IRISLIldlllfl un Lower on side 8 (track 2)

tandard mono hall track tapes can be played on the Upper track.
but It It Is attempted to !ep|a'y stereo hall track tapes. the Lower track
output wul be low due tn the track drspos-trons ol the two switfirns
(Compare lugs 2-: Et 25)

Our: to the narrower trackst quarter track recorders are more susA
ceptrble to "drop-outs" In the tape and to the ellect of dust and dtrt.
For this reason It rs recommended that Long or Double Play tapes be
used as. their more llexrhle tmckrng gwes a more tntrmate contact wrth
the tape heads Double: Play tupu rs particularly recommended lor
the slow" tape speeds. Even when usrng pressure pads. partlcles ol
dust, dirt or tape oxrde can cause poor contact and the tape path and
laces of the head; should be cleaned frequently It a particular tape
produces tms attach rt Lian nlten he Improved tn,- fast wrnrting the rape
drremlv between the reel, Ill contact WIttt a clean cloth lulded over the
tape

43

Page 39

INDEX
A.C./ D.C. apparatus 16
Apoustic environment 26
. leedback 25
Adjust tires 33. 46
Amplifier. external 16
. straight- through 37
Auto stop 20. 50
. cleaning 44
Auxiliary socket 34
Bass control 22. 49
Bias. adjust 33. 46
. meter 47
. optimum 47
. table 47
Black. splicing 29
Cabinet. 1 3
. tel 13
. lid 13
. installation 38
Capstan. cleaning 44
Care and maintenance 44
Carrying handle 13
Cartridge 15
Case removal 37
Cassette. 49
. loading 50
. mounting 50
. operation 61
Ceramic pick-up 15
Changing tracks 28
Characteristics. microphone 26
. replay 10. 49
Chassis model 38
Cleaning. auto stop 44
. capstan 44
. heads 44
Control. base 22, 49
. treble 22. 4B
. volume 22
Constant tones 46
Counter. turns 21
Crystal pick-up 15. 46

72

D.C./A.C. apparatus 1 5
DC tuse 13.16
Deck lunctionr 17
Defluxer 1 2
Double mono 40
Drop-outs 29. 43
Echo 36. 43
Editing 29
Endless loop cassette 49
Environment. acoustic 26
Equelisation. oomnselion 49
. swutch 18

External. amplifier 16
. loudspeaker 16

. operation 34

FM. (VJ-if.) stereo 14
Fast wrnd. 20
. monitoring 28

Fault analysrs. operational 88
Feedback. acoustic 25
Feet. cabinet 13
Feriotape 33
Foil stop 20
Foot swrtch 35
Frequency response 46
Functions. deck 17
Fuse. D C. 13. 14
. mains 31

, replacement 45
Gate. tape loading 18
Gramophone. input 15
. record 25

Graphited tape 49. 50
Hall track. mono 28
. stereo 28. 39

INDEX-continued

vtandle. carrying 13
Head. cleaning 44
. polarised :;
Heacbhones.
. monitonng 25. 27
Height. reel 31
Howl (ecomtic feedback) 25
" Moi: spools 18. 31
Illumination. metet 24
Impedance. inputs 9. 14
. outputs 9. 16
Input. line 14
. microphone 14
. pick-up 1 5
. tuner 14
insulation in cabinet 38
interjection 24
Internal loudspeaker 15. 25
Lamp. reset 18
Lead. mains 13
Length. tape per reel 33
Level, record 24. 46
. replay 4B. 48
Lid. cabinet 1 3
Line input 14
Loading. cassette 50
. gate 18
. tape 18
Location. microphone 26
Loop. endless 49

Loudspeaker. external 1 11. 24
. internal 16, 25

. loads 16
. monitoring 27
. output 16
. steteoplecement 39
. volume 22

Low noise tape 33. 46

73

Magnetic pick-up 16
Mains. luse 13. 44
. lead 13
. plug 13
. switch 1 3
. voltage 13. 46
Maintenance 44
Meter. 23. 27
, illumination 24
. swrtch 23
. V.U. 24
. monitoring 27

Microphone. characteristics 26
. impedance 14. 26
. input 14

. location 26

matching unit 14.26

. record 25

Mixing. 2 input 24
, 4 input 40
Models. 1 1
. stereo 39

. 702 a 704 44
Monitoring. last wind 28
. Medphones 27

. level 48

. loudspeaker 27

. meter 21. 48

Mono. 28
. double 4O

. track disposition 26. 29
Multipley 40
Operation. cassette 62
. deck 1 7

. external 34

. public address 37

. signal 36

. time switch 35

. vertical 10. 31

Operational lault enelvsis 68