Heathkit THE TWOER - Page 2

TYPICAL COMPONENT TYPES
This chart is a guide to commonly used types of elec-
tions should prove helpful in identifying most parts and
tronic components. The symbols and related illustra-
reading the schematic diagrams.
-I\AW/
RESISTOR
CAPACITOR
. '
\PLATE
EN
SUPPRESSOR
SCRE
GRID
TUBE
0
H
-----,---;
CATHODE
FILAMENT
POTENTIOMETER *TIP,
(CONTROL)
4 _,-
ELECTROLYTIC
CAPACITOR
(-
ei
III
p
PN P
COLLECTOR
TRANSISTOR
BASE
EMITTER
COLLECTOR
t
1,,10.0
410
,----
'
' 4,0,
/
H4-
....
-
____
N"
,e,
BASEBASE
NPN
EMITTER
kW
VARIABLE
CAPACITOR
.,
r',,,,,,
,,.......---"i -I .II"
.:14
1
TRANSFORMER
(IRON CORE)
.
I
II
I
I
TRANSFORMER
II
EI
ARROW,,
I
ECTION OF CORE
I
INDICATES DIR-
MOVEMENT TO
INCREASE
I NDUCTA
*-.:,
' .
CE
-
BATTERY
,,
`
sivs f/if/6,
NEON
.----"
H
..
111
.
:
,
-e-
BULB
41C30
TRANSFORMER MN
lilts
( ADJUSTABLE
--«.0.
'.?!
CORE)
4sol.kt,"
too
TA
PHONO
JACK
o -
'' 4
.,
,
ILLUMINATING
BULB
/
E
,
----
i
E
POWER
TRANS-
FORMER
,
-_-:-.-..__--- ,----.
----,_____. ,..-_.
O
,,42
PHONE ,_,/-:-.,,
JACK
\ ,
l'i,.
,-,-
fi
RECEPTACLE
4')
t1
INDUCTOR
''
(COIL)
00
S
P S T SWITCH
(TOGGLE)
4,
4,
42
°f,,
--
dr---4Ti
.......-
DPDT
.--.
PIEZOELECTRIC
CRYSTAL
SPEAKER
SWITCH
A A
(ROTARY) je,4-.;;;:.,
,
' ` W r" 12 6 4
P
°
eglW
'7',.
0
0
III
BIPOSTNDING
,---,:----
liP)
MICROPHONE
FUSE
11-
-
1
C
tkVi
b
)
CONDUCTORS
GENERAL
ANTENNA
-11
LOOP
/ /
/ /
EARTH GROUND
NOT
CONNECTED
CONNECTED
____ __
SHIELDED
-
CHASSIS GROUND
-