Ramsey Electronics FZ-146 Specifications download pdf (Page 65)

FX-146 • 65

CRYSTALS:

 1 10.240 MHz, has 2 leads (Y2, PLL reference frequency)

 1 21.855 MHz, has 2 leads (Y1, receiver IF oscillator)

 1 21.4 MHz crystal filter, has 3 leads (FL1, 1st IF filter)

INDUCTORS:

 1 455 KHz shielded inductor, marked LB53303HK (L1)

 1 Shielded variable coil, marked 8488 5-5 (L7)

 4 .015 uH, 1.5 turns, .125" diameter (L2,5,6,14)

 1 .04 uH, 4 turns, red color, (L10)

 1 500 uH noise suppression choke, large with black shrink tubing over

the body (L20)

 2 .33 uh., upright-style green molded mini-inductor: markings include 2

orange stripes (L11,L21)

 1 .33 uh., axial leads, wirewound with orange-orange-silver bands (L18)

 2 2.2 uh. axial leads, molded inductor, marked with two red, one gold

bands (L8,L17)

 1 tinned wire to make: 1.5 turn, .375" diameter, hand-wound (L13)

 4 tinned wire to make: 2.5 turn, .375" diameter, hand-wound

(L12,15,16,22)

 2 small size tinned wire and cores to make: RF chokes, hand-wound on

ferrite cores (L9,L19)

SPECIALIZED COMPONENTS:

 1 Ramsey FX-series main and low pass filter printed circuit boards

 2 ferrite cores (for making L9,L19)

 1 455 KHz ceramic filter, molded cube, 3 pins. (FL2)

 1 100 pf SMT chip capacitor (C75)

INTERNAL ALIGNMENT COMPONENTS:

 1 10K trimmer potentiometers, marked 103 (R46)

 3 35 pf trimmer capacitors (C74,C81,C84)

FIXED-VALUE CAPACITORS (RF-critical picofarad values):

 3 3.9 pf (C66,C79,C94)

 2 8.2 pf (C27,104)

 3 10 pf (C21,C56,C82)

 1 15 pf (C76)

 1 18 pf (C73)

 2 22 pf (C51,C78)

 1 27 pf (C14)

 4 39 pf (C71,C72,C80,C87)

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Ramsey Electronics FZ-146 Specifications Page 65