Bill of Materials Introduction
General
This page provides a Bill of Materials (BOM) for the entire kit. There is one BOM for all of the "common" (non band-specific) items, followed by a band-specific BOM for each Band implemented in the kit.
When inventorying, note that Tony usually provides one or two spares of each of the SMT capacitors (experience over 20,000 kits has proven these to have a high probability of at least one specimen being "launched" into the nether regions, never to be seen again).
If it is your practice to separate the SMT capacitors from their carrier strips when inventorying them, it would be wise to mark the ones from the black-striped carrier using a magic marker. This way you avoid possibly mixing the different-valued SMT caps up.
Also note that the kit comes with a single hank of magnetic wire made up of a 30 foot long length of wire. This is more than enough to cover the coil/transformer requirements, with some to spare.
DX Shipments Are in 2 Mailings
Finally, if you are a non-US builder, please note that Ensemble kit shipments to DX locations are done in two mailings:
- The first mailing includes the circuit board, ICs and capacitors.
- The second mailing includes the resistors, connectors, cores/wire, and hardware. (go directly to build notes) (go directly to build notes)
Bill of Materials
Ensemble RX II Component Inventory Summary
(resistor images and color codes courtesy of WIlfried, DL5SWB's R-Color Code program)
| Component | Value | Markings | Quantity |
|---|---|---|---|
| Band-specific-misc | band-specific | 34 | |
| boardhdw-HDW | 4 X #4-40 hdw (nut, bolt, washer, spacer) |
 | 1 |
| Capacitor-Ceramic | 390 pF 5% | 391
 | 2 |
| Capacitor-Ceramic | 0.01 uF | 103
 | 1 |
| Capacitor-Ceramic | 0.047 uF 5% | 473
 | 2 |
| Capacitor-Ceramic | 4.7 uF 10% 16V X7R RAD | 475
 | 5 |
| Capacitor-SMT 1206 | 0.1 uF | (smt) black stripe
 | 19 |
| connector-Jack | BNC Connector Male - PCB mount |
 | 1 |
| connector-Jack-RA | 3.5mm stereo jack - PCB mount (rt-angle) |
 | 1 |
| connector-Jack-RA | DC Power Jack PCB Mount (rt-angle) |
 | 1 |
| connector-Jack-RA | USB-B pcb jack (rt-angle) |
 | 1 |
| connector-Plug | DC Power Plug 5.5/2.1mm Pos Ctr |
 | 1 |
| Diode-Axial | 1N4003 | 1N4003
 | 1 |
| Diode-Axial | BZX55C3V3 3.3V zener diode | BZX55C
 | 2 |
| IC-DIP 8 | ATtiny 85-20 PU w/V15.12 Firmware | AVR ATTINY85-20PU
 | 1 |
| IC-DIP-4 | LTV-817 Opto-Isolator | LTV 817
 | 2 |
| IC-I2C | Si570 Programmable Oscillator | SiLabs 570
 | 1 |
| IC-SOIC-14 | 74AC74 Dual D FF | 74AC74
 | 1 |
| IC-SOIC-16 | FST3253 mux/demux switch | FST3253
 | 3 |
| IC-SOIC-8 | LT6231 dual op-amp | LT6231
 | 1 |
| IC-SOT-23-5 | LP2992AIM5-3.3V regulator | LFEA
 | 1 |
| IC-TO-92 | LM78L05 voltage regulator | LM78L05
 | 1 |
| inductor-Binocular core | BN-43-2402 (no markings!) | none
 | 3 |
| inductor-Toroid | T30-2 toroid core | red
 | 3 |
| PCB-Main Board | Ensemble RX PCB (board) | 1 | |
| Resistor-1/4W | 10 ohm 1/4W 1% | br-blk-blk-gld-br
 | 2 |
| Resistor-1/4W | 4.99 k 1/4W 1% | y-w-w-br-br
 | 2 |
| Resistor-1/6W | 68 1/6W 5% | bl-gry-blk-gld
 | 3 |
| Resistor-1/6W | 120 1/6W 5% | brn-red-brn-gld
 | 2 |
| Resistor-1/6W | 2.2k 1/6W 5% | red-red-red-gld
 | 12 |
| Resistor-1/6W | 10 k 1/6W 5% | brn-blk-ora-gld
 | 5 |
| Resistor-1/6W | 1 M 1/6W 5% | brn-blk-grn-gld
 | 1 |
| socket-Socket | 8 pin dip socket | 1 | |
| wire-Cutoff | shunt wire (cut-off lead) | 3 | |
| wire-Magnetic | Magnetic Wire, enameled #30 | 2 |
Band-Specific "Sub-BOMs"
To see the values for the band-specific items, click on the link below corresponding to the desired band/kit
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
| Check | Designation | Component | Marking | Category | Orientation | Notes | Circuit |
|---|---|---|---|---|---|---|---|
| ❏ | magwire | Magnetic Wire, enameled #30 | Magnetic | 35 feet in the kit | Bill of Materials | ||
| ❏ | xtracap | 0.1 uF | (smt) black stripe
| SMT 1206 | Bill of Materials |