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Node Computer/Supply Shelf Parts List

See also FAQ: Node Details for a block diagram of a node.
jay-box-4-port-node block diagram

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.
1 DC Power Supply, 20-40amps 40.0040.00eBay
1 Raspberry PI 4B 2GB RAM 38.0038.00Amazon or Canakit Latest B model
1 DROK variable output USB
DC in/DC outpower supply
13.5913.59Amazon B01EMYHOC6
1 Fuse Box 12.0012.00Amazon 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
1230amp 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 spacers
3/16" hex, 1/2" long 4-40
0.51 4.08 McMaster Carr 91780A533
8 screws Brass Pan Head
Phillips Screw 4-40 1/4"
0.06 0.49 McMaster Carr 94070A106
8 screws Brass Pan Head
Phillips 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 12.0012.00Amazon B01J6AF7BG
3 jumper wire (feet) 0.15 0.45 Surplus
1216 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.

© Tadd Torborg, 2014↝2020 -- all rights reserved