Divergence Meter Project
HomeParts Lists
This page has parts and sources listed for components needed to build my Divergence Meter. Some of the parts are actual functioning electronics, while others are dummy components for mounting on top of the case. There is also a list of parts needed to build the case itself.
I No Longer Have Any Processors, Boards, or Case Parts For Sale
You may want to check with Nixie Keith (https://www.tindie.com/stores/nixiekeith/) to see what he has available.
Parts you need to build a Divergence Meter are listed below, with sources indicated. Please note that this list is originally from 2012, so some parts may no longer be available from the sources listed (you may have to find parts with matching specifications).
Actual Electronics
| Quantity | Description | Part Number | Source |
|---|---|---|---|
| 1 | Main Printed Circuit Board | I have some of the full-up boards (with solder masks on top & bottom sides, silk screen layer on top), and can sell you a set of the two boards needed for $50, plus shipping. | |
| 1 | Tube Printed Circuit Board | ||
| 1 | U3: PIC16F628A processor |
579-PIC16F628A-E/P or 579-PIC16F628A-I/P |
mouser.com $2.23 |
| 1 | U1: LM7805 1A 5V regulator TO-220 (Also get a short machine screw and nut that fits the TO-220 mounting hole to hold it to the board. From hardware store.) |
512-LM7805CT | mouser.com $0.54 |
| 1 | D1: 1N4007 | 512-1N4007 | mouser.com $0.09 |
| 1 | Fuse 0.8A 5mm x 20mm | 504-BK/S500-800-R | mouser.com $0.21 |
| 2 | Fuse Holder Clips | 534-3519 | mouser.com $0.13 each |
| 1 | J2: DC Power Jack 2.5mm | 806-KLDX-0202-B | mouser.com $0.66 |
| 1 | X2: Crystal 32.768 KHz 12.5 pF 20ppm* | 559-NC38-LF | mouser.com $0.63 |
| 1 | U4: DS1307+ Real Time Clock* | 700-DS1307 | mouser.com $4.03 |
| 1 | U2: 1364 High Voltage Power Supply | 1364 HVPS-H | tayloredge.com $13.95 (price includes shipping cost) |
| 1 | C2: 330uF Electrolytic Capacitor | 80-ESH337M016AG3AA | (originally came with 1364 HVPS-H, but new versions of the HVPS-H do not require the component... but it doesn't hurt to have it there. The part number listed is from mouser.com $0.34) |
| 3 | U5, U6, U7: Supertex Serial to Parallel Converters 220V 32Ch Open Drain Outputs. Get the PQFP-44 package! | 689-HV5622PG-G | mouser.com $7.51 each |
| 8 | IN-14 Nixie Tubes (Soviet manufacture. No longer produced, but still readily available.) | I recommend getting tubes that are "New Old Stock" and "guaranteed tested" (or test them yourself before you install them) | Look for these on eBay. They can typically be found for under $10 each. |
| 1 | C1: 33uF Electrolytic Capacitor | 140-RGA330M1EBK0511G | mouser.com $0.08 |
| 5 | C3, C4*, C7, C8, C9: 0.1uF Capacitor MLCC | 810-FK18X7R1H104K |
mouser.com $0.21 |
| 5 | R1, R2, R3, R4, R32: 10K Resistor | 660-CF1/4C103J | mouser.com $0.15 each |
| 1 | R31: 470K Resistor | 660-CF1/4C474J | mouser.com $0.15 |
| 8 | R7, R8, R9, R10, R11, R12, R13, R14: 33K Resistors (current limiting resistors for nixies) | 271-33K-RC | mouser.com $0.09 each |
| 16 | R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25, R26, R27, R28, R29, R30: 243K Resistor (current limiting resistors for decimal point cathodes) | 271-243K-RC | mouser.com $0.09 each |
| 1 | R5: Trimmer Resistor 100K Sealed 6mm Square 12-turn | 81-PV37W104C01B00 | mouser.com $2.35 |
| 1 | J1 (8 pins), J3 (6 pins), and three 2-pin headers are cut apart from: Mil-Max 64 PIN HEADER 2.54mm spacing |
575-010064 | mouser.com $8.85 |
| 1 | J1 (8 position) and three 2-position sockets are cut apart from: Mil-Max 50 PIN SOCKET 2.54mm spacing |
575-093050 | mouser.com $8.39 |
| 1 | 18-pin DIP Socket for U3 | 571-1-390261-5 |
mouser.com $0.22 |
| 1 | Battery Holder for B1 | 534-103 | mouser.com $1.50 |
| 1 | B1: CR2032 3V Lithium coin cell | 658-CR2032 | mouser.com $0.45 |
| 2 | SW1, SW2: Micro miniature tactile switch | 655-FSMRA4JH | mouser.com $0.25 each |
| 1 | SW3: Slide Switch SPDT Right-Angle PC mount | 102-1261-EV (if that's out of stock, |
mouser.com $2.92 |
| 1 | 9V Battery Snap Connector | 270-324 | radioshack ($2.99 for pk. of 5) |
| 1 | D2: LED T-1 3mm (optional) | 78-TLHY4400 or 604-WP710A10YD |
mouser.com $0.13 |
| 1 | R6: 270 Ohm (optional) | 660-CF1/4C271J | mouser.com $0.15 |
| 1 | Power Adapter 9V, with tip to match J2 jack listed above. I bought: Velleman Compact Universal DC Adapter Power Supply. The tip that matches power jack J2 has a 2.5mm inside contact diameter, and a 5.5mm outside diameter, with the +9 volts on the center contact and Ground on the barrel. |
PSSMV1USA | amazon.com $18.25 |
*Note: For the DS3232 option, these parts are not needed (see the DS3232 Option page).
*Note: Parts X1, C5, and C6 marked on the printed circuit boards are not used (they were there in case I wanted to use a faster external oscillator for the processor...but the PIC's internal processor turned out to be fast enough).
(That's about $96.00 for the electronic parts, plus $50.00 for the printed circuit boards, plus probably something under $80.00 for the nixie tubes, depending how good a deal you find on eBay. So about $226.00 so far.)
Dummy Components
| Quantity | Description | Part Number | Source |
|---|---|---|---|
| 9 | Black Electrolytic Capacitors, 5mm diameter by 11mm long | 647-UPW1A220MDD | mouser.com $0.20 each |
| 1 | Supercapacitor (lower-left part of board) | 598-EDLF473A5R5C | mouser.com $2.45 |
| 1 | Ceramic Disc Capacitor, ~4mm dia. | 272-0126 | radioshack ($1.89 for 2) |
| 2 | IC 14-pin DIP (any chip this size is fine...I used what I had lying around...the part numbers here are the cheapest chips I found at Mouser.com). These go behind the tubes. | 771-74HC138N or 771-HEF4094BP652 |
mouser.com $0.18 |
| 1 | TO-220 package device (I can't tell for sure what component is back there, so I stuck this in. I like the look of the all-plastic TO-220FP package here, but a metal-tabbed device is fine, too.) | 511-L7809CP or 511-L7805CP |
mouser.com $0.52 |
| 1 | Small Diode. DO-41 package. | 512-1N4007 | mouser.com $0.09 |
| 7 | Beige Resistors, 1/4 watt. I used 11K. | 660-CF1/4C113J | mouser.com $0.15 each |
| 5 | Blue Resistors, 1/4 watt, metal film 1% (those are blue ones). I used 27.4K | 660-MF1/4CC2742F | mouser.com $0.14 each |
| 4 | Yellow Capacitors... Well, I couldn't find nice yellow capacitors of the correct shape. You may have to spray paint some. Mouser 667-ECQ-V1H273JL2 might be a bit large. Mouser 810-FK20X7R1H684K might be a bit small. Mouser 647-QYX1H102JTP3TA are actually yellow, but taller than we want. | ||
(Another $9.50 or so for the dummy electronics parts on the top of the case, depending on cost of yellow capacitors.)
Parts for the Case
| Quantity | Description | Part Number | Source |
|---|---|---|---|
| 1 | Perf board for top and bottom pieces. |
574-169P59XXXP | mouser.com $16.54 |
| 1 | 1/16 Styrene sheet plastic for bottom. |
Made by Evergreen Scale Models | Purchased at a hobby store |
| 2 | Aluminum Sheet 0.032 thick: Width:1 1/4", Length:7 1/8" |
I had these pieces of aluminum cut at a metal shop, and have some extras for sale. | |
| 2 | Aluminum Sheet 0.032 thick: Width:1 1/4", Length:1 7/8") |
||
| 4 | Hardwood corner posts 1/4" x 3/16" x 1 1/4" long. I used some Walnut I had on hand. NOTE: Alternate case construction uses hex standoffs as corner posts (see parts below)* |
Made by Midwest Products | Purchased at a hobby store |
| 1 | 1/16" basswood for spacers when mounting tube pc board to top of case. | Made by Midwest Products | Purchased at a hobby store |
| 1 | Plastruct Styrene Angle 3/16" |
90505 | I ordered it from towerhobbies.com ($5.49 for five 24" long pieces) |
| 6 | HEX STANDOFF 3/8 length 4-40 male/female | 761-4503-440-AL-7 | mouser.com $0.40 each |
| 4 | 4-40 Pan Head Machine Screws 3/8" long, to hold the bottom on. | hardware store | |
| 16 | 0-80 x 1/8" Phillips Pan Head Machine Screws to decorate the corners | Purchased 100 of these from Amazon.com |
*Alternate parts for case construction method 2 (which I recommend):
| 4 | Female Hex Standoff, 3/4" Length, 4-40 | 761-2061-440-AL-7 | Mouser.com $0.33 each |
| 4 | Male/Female Hex Standoff, 1/2" Length, 4-40 | 761-4505-440-AL-7 | Mouser.com $0.42 each |
(Assuming case construction method #2, and a handy hobby shop for basswood and styrene...more if you have to order it... and the parts for the case are about $45.)
So that's about $280.00 dollars in parts for the divergence meter. Of course, you had to buy more than you needed of some items (such as the perf board, headers, sockets, basswood, styrene, 9V connectors, etc.), so you have extra parts to make your second one a bit cheaper.
Of course, the official Steins;Gate Divergence Meter Replica sells for $750 to $790... and doesn't even LOOK like the divergence meter in the anime.
QUESTION? Ask me:
--"Tom Titor" of /a/
tomtitor@mindspring.com