Bill of Materials Introduction



Resistors can be oriented in "hairpin" style, with the body of the resistor snugged vertically in the hole with the silk-screened circle and the "hairpin" lead into the resistor's other hole (pointed to by the tiny silk-screened tickmark). Hairpin orientations can be N-S, S-N, E-W, or W-E. For example a hairpin-mounted resistor with N-S orientation would have the body in the "northern" hole and the hairpin lead in the "southern hole".

Resistors can also be oriented as "flat-h" and "flat-v", indicating a flat-mounted resistor in, respectively, a horizintal orientation or a vertical orientation.


Orientation of ICs may be illustrated via images of the IC to indicate how the chip is oriented with respect to its pin 1. On Tony's board, the pin 1 location is indicated by a "1" (which, depending upon how you view it, may resemble a zero).

Band-Specific Component Values

The bills of material in these notes provide the values for the components in the 40m option. However, the other versions have different values for certain of the components that are band-specific. If you are building a kit other than the 40m kit, you should have the chart below handy because it provides the band-specific values for those components. Throughout these notes, the individual bills of material will indicate (in the "notes" column of the component) whether a part is band-specific.

(go directly to build notes) (go directly to build notes)

Bill of Materials

SR Lite RX V6.2 40/30m Component Inventory Summary

(resistor images and color codes courtesy of WIlfried, DL5SWB's R-Color Code program)

boardhdw-HDW1/8in #4 nylon spacer1
boardhdw-HDW3/8in. 4-40 screw1
boardhdw-HDW4-40 hex nut1
boardhdw-HDW#4 nylon washer1
Capacitor-Ceramic22 pF 5%22J 22J1
Capacitor-Ceramic100 pF 5%101 1013
Capacitor-Ceramic1500 pF 10%152 1523
Capacitor-Ceramic0.047 uF 5%473 4732
Capacitor-Electrolytic10uF/16 VDC 3
Capacitor-SMT 12060.1 uF(smt) black stripe (smt) black stripe10
Diode-Axial1N40031N4003 1N40031
IC-SOIC-1474HC74 Dual-D FF74HC74 74HC742
IC-SOIC-16FST3253 mux/demux switchFST3253 FST32531
IC-SOIC-8TLV2462CD dual opampTVL2462CD TVL2462CD1
IC-TO-92LM78L05 voltage regulatorLM78L05 LM78L051
inductor-Coil5.0 uH 38T #30 T25-2 (17")red1
inductor-ToroidT25-2 toroid corered red2
inductor-Xfrmr0.35 uH 10T/2x5T bifilar #30 on T25-2 (7")red red1
PCB-Main boardSR Lite V6.2 Main BoardSR Lite V6.21
Resistor-1/4W10 ohm 1/4W 1%br-blk-blk-gld-br br-blk-blk-gld-br5
Resistor-1/4W499 1/4W 1%y-w-w-blk-br y-w-w-blk-br2
Resistor-1/4W1 k 1/4W 1%br-blk-blk-br-br br-blk-blk-br-br6
Resistor-1/4W10 k 1/4W 1%br-blk-blk-r-br br-blk-blk-r-br3
Resistor-1/4W22.1k 1/4W 1%r-r-brn-r-br r-r-brn-r-br1
Transistor-TO-922N3904 NPN Transistor2N3904 2N39041
Transistor-TO-922N3906 PNP transistor2N3906 2N39061
wire-Cutoffshunt wire (cut-off lead)2
Xtal-Xtal28.224 MHz Crystal28.224 or 28.2C691

Component Designations by Stage

Click to see the listing of individual componet designations by stage (e.g., "R1 10 ohms in Local Oscillator Stage").

UnAssigned Components