Ramsey Electronics manual Parts Supplied with PR20 KIT

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PARTS SUPPLIED WITH PR20 KIT

CAPACITORS

2 2 or 2.2pF disc capacitor (C1,2)

1 10pF disc capacitor (C3)

1 100pF disc capacitor [marked 100 or 101] (C4)

1 .01uF disc capacitor [may be marked .01, 103, or 10nF] (C5)

RESISTORS

1 470 ohm [yellow-violet-brown] (R1)

1 100K ohm [brown-black-yellow] (R2)

OTHER COMPONENTS

1 PRX printed circuit board

1 shielded adjustable coil (L1) [marked 359-7787]

1 2SC2498 or 2570 microwave bipolar transistor (Q1)

REQUIRED, NOT SUPPLIED

9 - 15 VDC power source

RF input and output connectors (your choice of type)

PR20—4

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Contents LOW Noise Preamp KIT Introduction to the PR20 LOW Noise Preamplifier Circuit Description Parts Supplied with PR20 KIT Disregard C6 Ramsey PR20 PRE-AMP Parts LayoutPR20 PRE-AMP Assembly Procedure PR20-7 Input and Output Connections Testing and Adjustment PR20 ON-OFF Switching Suggestion Strong Signal OVER-LOADINGSwitching Considerations for Transceiver Operation MHz Active Antenna2SC2498 Characteristics Troubleshooting Guide ConclusionRamsey PR2 the Ultimate Broadband Preamplifier Ramsey Kit Warranty Call or write for our full line catalog