Divergence Meter Project
Parts Lists for IN-18 version (8-29-2015)
This page has parts and sources listed for components needed to build the IN-18 version of my Divergence Meter (a work in progress). 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 (although he made some IN-18 version boards in the past, he may only have boards for the IN-14 version).
These Web pages are the instructions for building the device. Also, if you have an questions, ask me via email: tomtitor@mindspring.com
The other parts you need to build the IN-18 version Divergence Meter are listed below, with sources indicated:
Actual Electronics
| Quantity | Description | Part Number | Source |
|---|---|---|---|
| 1 | Main Printed Circuit Board IN-18 version | Ordered from ExpressPCB. I have the necessary files needed to order the boards if you want them. | |
| 1 | Tube Printed Circuit Board IN-18 version | ||
| 1 | U3: PIC16F628A processor |
579-PIC16F628A-E/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 $0.69 |
| 1 | D1: 1N4007 | 512-1N4007 | mouser.com $0.18 |
| 1 | Fuse 0.8A 5mm x 20mm | 504-BK/S500-800-R | mouser.com $0.32 |
| 2 | Fuse Holder Clips | 534-3519 | mouser.com $0.18 each |
| 1 | J2: DC Power Jack 2.5mm | 806-KLDX-0202-B | mouser.com $0.87 |
| 1 | U4B: DS3232 Real Time Clock* | 700-DS3232SN# | mouser.com $9.15 |
| 1 | C4B: 0.1uF Capacitor MLCC - SMT0805* | 10-CGJ4J2X7R1H104K | mouser.com $0.33 |
| 1 | U2: 1364 High Voltage Power Supply | 1364 HVPS-H | tayloredge.com $13.95 (price includes shipping cost) |
| 1 | C2: 330uF Electrolytic Capacitor | 75-515D337M025CC6AE3 | mouser.com $0.46 |
| 3 | U5, U6, U7: Supertex Serial to Parallel Converters 220V 32Ch Open Drain Outputs. Get the PQFP-44 package! | 689-HV5622PG-G | mouser.com $6.70 each |
| 8 | IN-18 Nixie Tubes (Soviet manufacture. No longer produced, but still available on eBay) | I recommend getting tubes that are "New Old Stock", not used ones. | Look for these on eBay. They can typically be found for around $50 each. |
| 1 | C1: 33uF Electrolytic Capacitor | 75-517D336M025JA6AE3 | mouser.com $0.33 |
| 4 | C3, C7, C8, C9: 0.1uF Capacitor MLCC | 594-K104K15X7RF5TL2 |
mouser.com $0.26 |
| 6 | R0*, 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: 15K Resistors (current limiting resistors for nixie tubes. This value is different from that used with the IN-14 tube version) | 271-15K-RC | mouser.com $0.15 each |
| 1 | R18 (current limiting resistor for decimal point). I didn't know the resistance this should be to give the LED the brightness to match the tubes, so I made the board with the option to hold a trimmer pot instead of a fixed resistor. This way the resistance can be adjusted as desired (start at about 1K...NOT at zero K, or you'll fry the LED!) | 652-3006P-1-502-LF | mouser.com $2.08 |
| 1 | For the LED that will go in front of one of the tubes to act as the decimal place, I used an ornage surface mount LED (mouser 630-HSMD-C150) soldered to wires (a bit tricky, but I was able to do it 3 out of 4 times I tried) | 630-HSMD-C150 | mouser.com $0.40 each (I bought extra in case I made soldering mistake) |
| 1 | R5: Trimmer Resistor 100K Sealed 6mm Square 12-turn | 81-PV37W104C01B00 | mouser.com $2.29 |
| 1 | J1 (8 pins), J3 (6 pins), and four 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 four 2-position sockets are cut apart from: Mil-Max 50 PIN SOCKET 2.54mm spacing |
575-093050 | mouser.com $5.26 |
| 1 | 18-pin DIP Socket for U3 | 571-1-390261-5 |
mouser.com $0.22 |
| 1 | Battery Holder for B1 | 534-103 | mouser.com $1.73 |
| 1 | B1: CR2032 3V Lithium coin cell (This item will limit shipping choices, so you may want to purchase this battery locally) |
658-CR2032 | mouser.com $0.33 |
| 2 | SW0*, SW1, SW2: Micro miniature tactile switch | 506-FSMRA4JH04 | mouser.com $0.23 each |
| 1 | SW3: Slide Switch SPDT Right-Angle PC mount (for 9V battery power) | 633-MS12ASG30 |
mouser.com $4.00 |
| 1 | 9V Battery Snap Connector | 534-84-6 | mouser.com $0.92 |
| 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 $14.50 |
| 192 | Gold plated pins for IN-18 tubes to plug into. Search eBay for socket pins for IN-18. The pins are about 15 to 15mm long, and they look like the picture on the right. |  |
eBay |
*Note: For this version of the Divergence Meter I used the the DS3232 clock option. The IN-18 board does NOT require the extra jumper wires described in the DS3232 Option page. Parts U4B and C4B are surface mount parts that go on the backside of the main board.
*Note: Many of the parts marked on the boards are not actually needed:
Parts X1, C5, C6 (they were there if I wanted to use a faster external oscillator. NOT used);
Parts D2, R6 (a LED originally used as a test output during software development. Not needed);
Parts SW0, R0 (an extra pushbutton, not used. But I will put it on in case I later program a feature that uses it);
Parts X2, U4, C4 (parts for the old clock chip. NOT used in this version. U4B and C4B on the back replace these);
Parts LS1, Q1, R33, R34 (place for a beeper in case I want to add an alarm function. Never worked out the exact values for these parts or programmed any alarm functions);
Parts R21, R27 (these would be limiting resistors for "colon" displays, which I will not be using).
Dummy Components
These are sized for the IN-18 version, which is about 170% larger than the IN-14 version.
| Quantity | Description | Part Number | Source |
|---|---|---|---|
| 9 | Black Electrolytic Capacitors, 8mm diameter by 15mm long | 647-UPW1E331MPD6 | mouser.com $0.32 each |
| 1 | Supercapacitor (lower-left part of board). This part is 21.5mm diameter. Unfortunately, this part is only 8mm tall, which is shorter than desired. I used two of these (with one glued on top of the other), which is taller than desired. At $4.08 each, you may want to use just one. | 598-EDLNF105B5R5C | mouser.com $4.08 |
| 1 | Ceramic Disc Capacitor, ~7.5mm diameter. The part I orderd from mouser (75-125LD22-R) is a good diameter, but fatter than I'd like. I'm going to use a 0.1 uF disc capacitor I had lying around from Radio Shack. | 272-135 | radioshack (2 for $2.49) |
| 3 | IC 16-pin DIP (any chip this size is fine... these are the cheapest chips I found at Mouser.com). These go behind the tubes. | 595-SN74HC161N |
mouser.com $0.45 |
| 1 | TO-220 package device (I can't tell for sure what component is back there, so I stuck this in.) | 512-LM7805CT |
mouser.com $0.69 |
| 1 | Diode. DO-201 package. (This part looks a bit large...but the 512-1N4007 used on the IN-14 versions would be too small here) | 576-LCE45A | mouser.com $0.76 |
| 7 | Resistors, 1/2 watt. I used 12K. | 293-12K-RC | mouser.com $0.19 each |
| 5 | Blue Resistors, 1/2 watt, metal film 1% (those are blue ones). I used 27.4K | 660-MF1/2CC2742F | mouser.com $0.19 each |
| 4 | Yellow Capacitors... Well, I couldn't locate capacitors of the correct shape or color. I'll have to spray paint some. Should be about 12mm wide by 9mm tall. Mouser 667-ECQ-E4473JF are 11mm by 7mm. Mouser 667-ECQ-E4104KF are 10.5mm by 9mm. None of these have the tapered-toward-the-top shape of the ones in the anime. | ||
Parts for the Case
| Quantity | Description | Part Number | Source |
|---|---|---|---|
| 1 | Perf board for top piece. |
574-169P59XXXP | mouser.com $16.54 |
| 2 | 1/16 clear acrylic sheet plastic for bottom. |
This was plastic meant for putting in a picture frame. | Purchased at a hobby store |
| 2 | Aluminum Sheet 0.032 thick: |
I had these pieces of aluminum cut at a metal shop. Thicker metal would be OK, but I had these cut from 0.032" metal at the same time I was getting pieces cut for the smaller IN-14 case. | |
| 2 | Aluminum Sheet 0.032 thick: |
||
| 1 | 1/16" basswood for spacers when mounting tube pc board to top of case. | Made by Midwest Products | Purchased at a hobby store |
| 4 | Styrene plastic angle stock 3/8" (9.5mm) for the corners of the case. Cut 4 pieces, 51mm long. |
Plastruct 90508, Catalog no. AFS-12 | Purchased at a hobby store |
| 6 | HEX STANDOFF 1/4" diameter, 1/2" length, 4-40 male/female | 761-4534-440-AL-7 | mouser.com $0.50 each |
| 6 | HEX STANDOFF 1/4" diameter, 1" length, 4-40 female/female. These (along with the part below) will be the corner and center posts for case construction method 2. | 761-2112-440-AL-7 | mouser.com $0.40 each |
| 6 | HEX STANDOFF 1/4" diameter, 15/16" length, 4-40 male/female. The length of the corner/center posts can be adjusted by screwing the twoparts together a little more or less to get the desired length, as needed. | 761-4541-440-AL-7 | mouser.com $0.59 each |
| 6 | 4-40 Pan Head Machine Screws 3/8" long, to hold the bottom on. | hardware store | |
| 16 | Small Phillips Pan Head Machine Screws to decorate the corners. 2-56 size, 1/8" long. I couldn't find them this short at my hardware store, so I order a pack of 100 on eBay. | hardware store or eBay |
QUESTION? Ask me:
--"Tom Titor" of /a/
tomtitor@mindspring.com