Electrical Modifications Introduced To The Model 12 Tape Recorder - TANDBERG 12 Service Manual

5.8 ETECTRICAT MODIFICATIONS INTRODUCED TO
THE MODEI. I2 TAPE RECORDER
PART
O R I G I N A L P A R T
NEW PART
M O D I F I E D
ABOVE
S E R I A L N O .
R l 4 6 - t 2 C
R t 4 7 - t 2 C
R i 5 l - l 2 c
R l 5 2 - l 2 C
R 2 0 0 - l 2 c
R 2 0 r - l 2 c
R 2 0 2 - 1 2 C
R203- 1 2C
R302- 1 2C
R 3 r 5 - I 2 C
R 3 r 8 - t 2 C
R 3 l 9 - l 2 C
R320- I 2C
R402-t2C
R 4 l 5 - l 2 C
R 4 r B - l 2 C
R 4 l 9 - t 2 C
R 4 2 0 - t 2 C
R 5 0 5 - 1 2 C
R 5 0 Z - l 2 C
c r S i - l 2 c
c I 8 2 - 1 2 C
c r 8 4 - l 2 c
c r 8 5 - r 2 c
c 3 0 4 - t 2 c
c 4 0 4 - t 2 c
c 5 0 4 - l 2 c
c505-i 2c
Q r 0 5
Q r r 6
Q502
Rec./playback
h e a d
Erut" head
3 K o h m s Y 2 W 1 0 %
3 K o h m s V z W 1 0 %
1 0 0 K o h m s V 2 W 1 0 %
1 0 0 K o h m s 1 / z W 1 O 7 "
100 ohms 1/+ W 5 %
3 3 K o h m s y z W 1 0 %
1 0 0 o h m s % W 5 %
3 3 K o h m s V z W l O %
1 5 0 o h m s y 2 W l O %
l 0 K o h m s V z W 1 0 %
i 5 0 o h m s V z W 1 0 %
l 0 K o h m s Y z W 1 0 7 "
4 7 o h m s V z W 1 0 %
1 0 0 o h m s y 2 W 1 O %
. t p F 2 5 0 V 2 0 %
. 1 p F 2 5 0 V 2 0 %
B C I t 4
B C I r 4
B C l l 3
Modifications introduced to the
1 . 5 K o h m s y z W 1 0 %
1 . 5 K o h m s V 2 W 1 O %
4 3 K o h m s Y z W 1 0 %
4 3 K o h m s V z W 1 0 %
1 5 0 o h m s t / 4 W 5 %
6 8 K o h m s V z W 1 0 %
l 5 0 o h m s W W 5 %
6 8 K o h m s Y z W 1 0 %
8 2 o h m s V 2 W 1 0 %
7 . 5 K o h m s V z W 1 0 %
.47 ohm wirewoud 3 W
.47 ohm wirewoud 3 W
1 0 0 o h m s t h W 1 0 %
8 2 o h m s V z W 1 O %
7 . 5 K o h m s V z W 1 0 %
.47 ohm wirewoud 3 W
. 4 7 o h m w i r e w o u d 3 W
1 0 0 o h m s V z W 1 O %
I K o h m t h w 1 0 %
5 1 0 o h m s y 2 W 1 0 %
40 pF 2.5 V
2 5 p r F l 5 - 1 8 V
40 wF 2.5 V
2 5 p F l 5 - 1 8 V
2 . 5 p F 6 4 V - 1 0 1 1 0 0 %
2 . 5 p F 6 4 V - 1 0 1 1 0 0 %
. l p F 2 5 0 V 2 0 %
. i p F 2 5 0 v 2 0 %
BCr 098
BC I 09B
u284812 (U2848/r)
four-track version
742326
742326
743026
743026
7 3 3 2 2 8
744500
7 3 3 2 2 8
744500
749500
749500
73305 I
73305 I
734001
749500
749500
73305 r
73305 r
734001
239500
739500
734501
73305 r
734501
73305 I
749500
749500
748700
748700
745500
745500
739500
fi
3 8 H
37H
lro,.
laru
fr
40