Heathkit W5M pwr sm

Page 1

ASSEMBLING
AN D USING
gYOUR ......

HIGH FIDELITY
AMPLIFIER

MODEL w-5M

HEATH COMPANY
595- 103 Copyright 15155
. BEHIEEIErEZSIZIXIW B E N T O N H A R B O R ,
I MIC H IG A N

PRICE $1.00

Page 2

STANDARD COLOR CODE - RESISTORS AND CAPACITORS

INSULATED FIRST RING SECOND RING THIRD RING
AXIAL LEAD RES|§|0R UNINSULATED BODY comm END COLOR DOT COLOR
Irwin-Insulated Color First Figure Second Figure Dlulliplier DISC (ERMIC RM (ODE
llark- Non-insulated BLACK 0 0 None 5-Dot t _ 3«Dot
\ EggWN 1 ' 1 0 WW
2 2 00 .
= ORANGE 3 3 ,000 """""°'
YELLOW 4- 4 0.000 Tolerance
L Toleraue GREEN 5 5 00,000
Multiplier 3idi$l 6 6 0 000,000
lst and 2nd Sip-linen Figures 1 a 7 7 yoooiooo T . C "Ii
m. m... mi..... i... awe g g 033333-333 '"' "
In digit band doolalo width ' '
now. mo nor RESISTOR 5-00! RADIAl lEAD CERAMK cMACITOII EXTENDED RANGE rc cmmc mm
Multiplier "m (nu. (opacity

Moltlpller

Tolerant-

TC Multiplier Multiplier Tolerant-

RADIAL LEAD (BAND) RESISTOR
Mulliltllor

2nd Hw-

Mlltlpllor

Toleranre lfl Figure

IY-PASS COUPLING CERAMIC CAPACITOR
(apathy

AXIAL lEAD CERAMIC CAPACITOR

Temp. Cull. parity

Toleranto

Tolerant-

The standard color code provides all necessary information re-
quired to properly identify color coded resistors and capacitors.
Refer to the color code for numerical values and the zeroes or
multipliers assigned to the colors used. A fourth color band on
resistors determines tolerance rating as follows: Gold = 5%.
silver = 10%. Absence of the fourth band indicates a 20%
tolerance rating.

The physical size of carbon resistors is determined by their
wattage rating. Carbon resistors most commonly used in Heath-
kits are V2 watt. Higher wattage rated resistors when specified
are progressively larger in physical size. Small wire wound
resistors 1A watt. 1 or 2 watt may be color coded lut the first
band will be double width.

MOLDED MICA TYPE CAPACITORS

CURRENT STANDARD CODE RMA 3-DOT (OISOIETE) IUTTON SILVER MICA
Whitelllfl) 21:; i 5"" """° iii: RATED 500 WIVIMI i 20% mt. (SSAPACITOR '
Ilerlr (JAII) Multiplier RMA . Multiplier Tolerann 5'1
CODE i I I
7 Class Tel-rams 1": sfllfllfiu'fl Illu- Mul'lflll'l'srd Hm. § "d man"
I i "M (5-0!" OISOLETE CODE) RMA soot (0mm!) RMA 4-001 (onsomr)
5' - Worhin m In
2 d Slpnllirant More I mi ® loloronu
n mph" Voltage _. \\\\ \ll ®_ Multiplier 23:: slflllfilll' liner" \ Working Voltage
Front \\S RC \\\.\

lst 2nd Sig-Miran! Figure

at 8% ® Multiplier

WSW" '°""" \\\ e® MPH-r ..m.. .
_ . i . , I Sinnlfiranthpuu
Toleranre Working \\ \\\\ ® Tolerant: Working Voltage
Voltage lanlr

MOLDED PAPER TYPE CAPACITORS

JAN. CODE CAPACITOR

TUIULAR APA R in i . MOLDED FLAT CAPACITOR
( ("0 i Sl'nmu ill". Comm-trial Cede Silver In Slauifitanl
M'ml'l'" Working Volts 2nd Emma
Normally IIIKII
= = stamped l-r lady
value
Tolerance Signifirant - Multiplier Multiplier

lst

A 1 digit voltage ratlllg indicates more III. 900 V.
Add 2 um to and ol 2 dial! number.

2nd
Voltage Flluu

1nd , . .
lst Sllfllfin' IV" Chorattovlsllt

The tolerance rating of capacitors is determined by the color
code. For example: red = 2%, green 2 5%, etc. The voltage
rating of capacitors is obtained by multiplying the color value
by 100. For example: orange = 3 X 100 or 300 volts. Blue
6 X 100 or 600 volts.

In the design of Heathkits. the temperature coefficient iif ceramic
or mica capacitors is not generally a critical factor and there-
fore Heathkit manuals avoid reference to temperature coeffi-

cient specifications.
(Gunny ol C-mmIob