Ramsey Electronics FX-440 Manual page 64

1,/ CRYSTALS:
1 ['' ] 12. 80 MHz, has 2 leads (Y2, PLL reference frequency)
1 ('".] 21.855 MHz, has 2 leads (Y1, receiver IF oscillator)
1
hi
21.4 MHz crystal filter, has 3 leads (FL1, 1st IF filter)
INDUQIORS:
1
pi']
455 KHz. shielded inductor, marked LB53303HK (L 1)
11
[/J _ _
,015 uH, 2 turns, .125" diameter (L2,3,4,5,6,9,10,18,19,23,24)
1
f )
Pre-wound donut shaped toroidal balun (T1)
1 [ · ·
y
500 uH noise suppression choke (large style with black shrink
tubing cover) (L20)
2 [ \ .. J'°,.04 uh, 4 turns, .125" diameter (L11, L21)
3 [""] 2.2 uh. molded mini-inductors: markings include two red, 1 gold
and 1 black band (L8, L 17, L22)
1 [
L]
:5 turn, .25" diameter, to be hand-wound in assembly (L13)
2
[VJ
1.5 turn, .25" diameter, to be hand-wound in assembly (L12,L14)
SPECIALIZED COMPONENTS:
1 [
0 ]~
Ramsey FX-series Printed Circuit Board
1 [,<) 455 KHz ceramic filter, molded cube, 3 pins (FL2)
3
1vr_ . .
-~
pf SMT chip capacitor (C73,C75A,C75B)
4 t.j<,single hole ferrite beads (FB1 ,2,3,4)
1 (
:J
press-on heat sink for 08 (HS-1)
INTERNAL ·ALIGNMENT COMPONENTS:
1 [ ,f_.lOK trimmer potentiometers (marked 103) (R46)
1
[tl 35
pf trimmer capacitor (black body with orange top) (C81)
2 [
' " l
20 pf trimmer capacitor (white ceramic body) (C74,C84)
5.flXED-VALUE CAPACITORS (RE-critical picofarad values):
4
t;J)
2 pf (C20,C27,C28,C30)
3 . .
,/J
3.9 pf (C26,C31)
2 /] 4. 7 or 5 pf (C71, 72) (marked 4. 7 or 5 or 4. 7K or SK)
2
.·~·r]
8.2 pf (C51,54)
3
1110
pf (C22,39,66) (marked 10 or 10K)
4
<1
15 pf (C12,C15,C80,C82) (marked 15 or 15K)
9 ·
[<]
27 pf (C17,21,25,47,56,63,64, 76, 78) (marked 27 or 27K)
1 .p<] .•
39 pf (C87)
11
f:'T
100 pf (mqy Qe mark~.
l
098::101)
(ClQ,
11._,t~,Jg,~.«i·45,46,5o(::y~J
,-;,;,
.Assm.
4 FX-440