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Ramsey Electronics VHF Low Noise Preamp Kit PR100 User Manual

Page 6

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PR100 y 6

PARTS LAYOUT DIAGRAM

PARTS LIST


CAPACITORS

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2 2.2pF ceramic capacitors (marked 2.2) (C4, C5)

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1 10pF ceramic capacitor (marked 10) (C7)

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3 8.2pF ceramic capacitors (marked 8.2) (C8, C9, C10)

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1 22pF ceramic capacitor (marked 22) (C6)

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1 100pF ceramic capacitor (marked 100, or 101) (C2)

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1 .001uF ceramic capacitor (marked .001, or 102) (C3)

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1 .01uF ceramic capacitor (marked .01, 103, or 10n) (C1)

FIXED RESISTORS

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1 100 ohm resistor (brown-black-brown) (R1)

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1 18 ohm resistor (brown-grey-black) (R3)

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2 300 ohm resistors (orange-black-brown) (R4, R5)

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1 47K ohm resistor (yellow-violet-orange) (R2)

SEMICONDUCTORS

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1 2SC2498 or 2570 NPN UHF transistor (Q1)

INDUCTORS AND FILTERS

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3 359-7787 Variable inductors (metallic cans with slug) (L3,L4,L5)

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2 2.2uH inductors (green body with red-red-gold stripes) (L1, L2)

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1 2 section helical filter, 145 MHz (Large metallic can with two
adjustments) (FL1)

CONTROLS, HARDWARE & MISCELLANEOUS

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1 Type-F connector (J3)

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1 PC Board