Node Computer/Supply Shelf Parts List
See also
FAQ: Node Details for a block diagram of a node.
last changed December 5, 2020
This list is in flux for a couple of reasons. In 2018 we were using TNC-PI and they had some idiosynchrosies which needed to be worked around.
In 2020 we started using our own NinoTNC which had fewer idiosynchrosies and were quite a bit cheaper.
The node cabinet solution with the TNC-PI is overkill for the NinoTNC so we're re-engineering some of this.
In addition, in 2020 we started working on a control panel accessory which is very handy.
Some of these parts are only available in quantity and there are tools required that a single ham might not have or want to acquire for a private workbench.
Please ask your local TARPN network group for help in choosing the appropriate parts.
If you are starting a new group, write to the
TARPN email reflector.
Work with the group.
It's more fun that way, and it is certainly more efficient.
This is what went into the a box to complete a the common computer/supply level of a multi-port node in early 2020.
| quan | Description | each | subTotal | source |
| 1 | DC Power Supply, 20-40amps | 40.00 | 40.00 | eBay |
| 1 | Raspberry PI 4B 2GB RAM | 38.00 | 38.00 | Amazon or Canakit Latest B model |
| 1 | DROK variable output USB
DC in/DC outpower supply | 13.59 | 13.59 | Amazon B01EMYHOC6 |
| 1 | Fuse Box | 12.00 | 12.00 | Amazon B00QMTAZ1W |
| 1 | gel cel 12V 2.2Ah PS-1220-10 battery | 9.49 | 9.49 | Amazon B077Y9FT5K |
| 1 | Square D Ground Bar | 5.00 | 5.00 | Amazon B002FQKSKO |
| 2 | #10 (12-10) Ring Terminal | 0.12 | 0.24 | Parts Express 095-222 |
| 8 | 1/4" push-on female
disconnect crimp terminal | 0.12 | 0.96 | Parts Express 095-290 |
| 12 | 30amp powerpole pins | 0.30 | 1.80 | Quicksilver Radio |
| 6 | RED/BLACK Powerpole
(red/black bonded pair) | 1.13 | 6.78 | Quicksilver Radio ppl-wld-hsg |
| 1 | bridge rectifier | 1.84 | 1.84 | Parts-Express 050-030 |
| 1 | 56ohm 10watt resistor | 0.54 | 0.54 | Parts-Express 016-56 |
| 8 | Aluminum threaded spacers3/16" hex, 1/2" long 4-40 | 0.51 | 4.08 | McMaster Carr 91780A533 |
| 8 | screws Brass Pan HeadPhillips Screw 4-40 1/4" | 0.06 | 0.49 | McMaster Carr 94070A106 |
| 8 | screws Brass Pan HeadPhillips Screw 4-40 3/8" | 0.07 | 0.55 | McMaster Carr 94070A108 |
| 1 | velcro (feet) | 0.90 | 0.90 | Amazon B00006RSWT |
| 1 | pack of 5 USB-A to USB-B 36" cable | 12.00 | 12.00 | Amazon B01J6AF7BG |
| 3 | jumper wire (feet) | 0.15 | 0.45 | Surplus |
| 12 | 16 gauge red/black zip cord (feet) | 0.15 | 1.80 | eBay for 12VoltWire store |
Total cost is about $150.
To complete the node you'll also need NinoTNCs ($30 depending on quanitity and shipping), radios, coax, antennas, mounting hardware.
