Metal Builder's Project Boxes

Project Box Bonanza!!
RF-Tight Steel Enclosure

(ENC) 90020340
  • Description
  • Nabu History
  • Testimonials

Need a solid steel anodized, RF-tight project box? This is the one!! It has just 4 holes in the front panel for included LEDs and 2 holes in the back panel for an "F" connector and a 5 pin "DIN" connector. When manufactured, they even left bare metal around the holes for the cover mounting screws to insure good metal to metal contact. The plastic front panel mounts to the steel front panel and is removable with the 3 green LED positions marked for Power, Cable, Link and a red LED marked Message.

The steel box is 18-1/2" wide x 10" deep x 3-1/2" high and includes an internal divider spot welded in place creating a 4" wide compartment for the included power supply. The power transformer puts out 8.5 vac @ 0.5 amps and 22 vac @ 0.5 amps. Mounted on the back panel are a 5 volt, 1.5 amp regulator and a 1.5 amp, 18 volt regulator on a small heatsink.

Filter capacitors are 22,000mF at 16 volts and 470mF at 50 volts. The end result is a linear DC +5 volts @ 1.0 amps and +18 volts @ 1.0 amps supply that can supply power for many different projects. A 1/2 amp slo-blow fuse and holder are included as well as the SJT 18/3 power cord.

Each cabinet also includes a 'Logic Board' and an 'RF Module'. See the description below of what this was for. There is a 40" long cable with 5 pin male "DIN" connnectors on each end. Also included is a 40" RG-59 cable with male "F" connectors on each end. A great project box with some usable parts for a bargain price. Shipping weight = 16 lbs.

Own a Piece of History

The NABU Network was the City of Ottawa Canada's step into the future well before its time. Please read the historical perspective on this very early bi-directional home/business access network.

We were able to acquire the set-top converter / controllers for this network. This equipment provided the interface between the 117 MHz cable signals that were exchanged between the DEC server and the user's TV. There was probably a keyboard type device used with this for selecting services and interaction.

In addition to the power supply described above there are 2 modules inside the unit. There is an RF module that down-converted signals from the cable connection and up-converted requests to be sent to the server. This also provided the TV signal to the user's set. All sections of this unit are enclosed in another RF-tight box. There are 4 circuit boards for frequency synthesis, data in and out and RF conversion and dual helical coil bandpass filters. All parts on these boards are descrete components and include some LS and CMOS chips. This module is mounted on a 4 3/8" x 8 1/2" one-quarter inch thick heatsink.

The logic module includes 4 socketed chips: a TR1865CL-04, a full duplex UART, a SC87253P 8 bit microprocessor, a N8X60N FIFO I/O controller and a pre-programmed ROM. The remainder of the parts on this board are numerous 74LS series logic ICs.

While there are a lot of components included on these boards they are literally antique and more of a curiousity than anything else. Keep in mind that at the time these boxes were made, there was no internet. Only BBSs and teletext services. By the way, if you are familiar with the service these boxes were used for, let us know so we can share the information with others.



I just received the NABU steel enclosure and what a great project box it is. I will use it to install a 500 watt
Stereo amplifier, a special switching power supply and an equalizer. Thank you for a great find.  

-- Robert Chatelain
E045576


ONLY $17.95 each - $14.95 (5+), $13 (25+), $10 (100+)

SRS SR-645 Antenna Coupler
Rain Tight Case

(ENC) SR-645
Scientific Radio SR-645 antenna coupler rain tight case. Great for outdoor antenna tuner or switch. Hinged lid with gasket. Four threaded inserts heli-arced to back for interior mounting. Four slotted tabs on outside for mounting to a surface. Four pre-drilled holes on ends for connectors. Solid aluminum for light weight. Seven stainless steel clips secure the lid. Provision for padlock on lid. Holes: Bottom end: 1-1/4", Two holes 9/16", 3/16", Top: 2". Measures 20" x 24" x 9-1/2".
 

SRS SR-645 Antenna Coupler
Rain Tight Case (cont'd)

(ENC) 652203
Scientific Radio SR-645 antenna coupler rain tight case same as left except case measures: 20" x 24" x 11-1/2".
$385 each

(ENC) 652203A
Scientific Radio SR-645 antenna coupler rain tight case same as left except case measures: 20" x 24" x 13-1/2".
$300 each
 
$475 each

Heavy Duty Aluminum Chassis

(ENC) 637-1827-002
Heavy duty aluminum chassis. New, unused. OEM surplus. Shelf hopping scars. 42-1/4"L x 23-1/2"H x 18-1/2"W.
NOTE: UPS oversize surcharge in addition in dimensional charges will apply.
 

T Mounting Bracket

(ENC) C11/75
T mounting bracket. Military, welded steel. Two 2-3/4" holes with 5 perimeter holes. Two 1-1/2" pipe / conduit holes on end. Made to mount up to I or H beam with 4 - 5" flange. Measures 4" x 6" x 12". Weighs 19 lbs. 5975-00-645-8653. New surplus.
$150 each
 
$65 each

Antenna Coupler
Rain Tight on Budget

(ENC) 202409
Previously used steel case. Has gasket around inside perimeter of door for seal and two side bolts to lock door. Mounting back plain in rear for equipment and has pre-drilled holes on side - 2"DIA x 3-1/4"H keyhole, two shaft holes 1/4"DIA each labeled "type" and "coarse", two fine holes 1"DIA and 1/2"DIA. Top has 2-1/2" hole with insulator disc installed, and an F connector feedthru. Case has 4 flanges 2"W x 1-1/2"H on each corner for fall mounting. 20"W x 9-1/2"D x 24"H. Only one available.
 

Round Enclosure

(ENC) SAT-PAD
MiTronix SAT-PAD enclosure. If you ever need a SATPAD, or an industrial snare drum, we've got one right here. 24"DIA x 7-1/4"H with a 10"DIA access hole on the top with 3 thumb screw cover. 6 quarter inch bolts around the perimeter hold the top and bottom plates together. 4 cables/conduit clamp on top.
$99 each
 
$175 each

BUD Sloping
Front Panel Enclosure

(ENC) GR-357
BUD Industries equipment enclosure with front sloping equipment mount and vented drop down door. 22"W x 15"D x 16"H overall dimensions. Top plateau is 5"D x 22"W. The equipment mount rack (12"H x 22"W) has a 45° slope to a vertical front (9-1/2"H x 22"W). Front access door (19"W x 8"H) is bent at a 90° with a hinge running the width of the unit on the bottom side - bottom side panel of door runs 4" deep.

View "More Images" for diagram of dimensions.

 

Chassis with Front Panel

(ENC) C1155
Chassis with front panel. Brand new equipment we stripped of parts and cannot bear to scrap. This is a beautiful chassis with black wrinkle front panel. 26-7/8" x 10-3/4" x 3/16" thick aluminum. Overall dimensions: 20" x 21" x 10"H.

$175
 
*** SOLD OUT ***
 

Rack Mount Chassis

(ENC) SR-809
Rack mount chassis with hinged door on front for access to 8 slot PC card rack. Includes 12 vdc, 1 amp power supply. Input is 115 / 230 vac or 12 vdc. Front panel includes power switch, 3 momentary pushbutton switches (SPST), 3 LEDs and 4 plus / digital 7 segment displays. Dual hex thumbwheel switches. The displays accept BCD data. Dimensions: 5-1/4" x 19" x 14".
 

Builder's Chassis

(ENC) 105257
Builder's chassis. Aluminum chromate. 0.095" thick. Various knockouts for RF & data connectors. Various inserts. 4-1/2" x 16-7/8" x 3" high. Only 5 available.
$49 each
 
$35 each

Rack Mount Enclosure

(ENC) SR501R
Rack mount enclosure. RF tight frame behind panel for equipment. Includes front panel controls and knobs. Perfect for receiver, transmitter or control circuits for a remote stie. Includes AC power connector on rear, four 3 amp diodes and 2300 µF, 35v filter capacitor. Just add a transformer for a power supply to power the units. Top and bottom removable.

• 5-1/4" x 19" x 8"
• Two internal spaces: 9" x 4-3/4" x 2-3/4"
and 6" x 6" x 4"

 

SRS Remote Unit
Cabinet & Electronics

(ENC) SR1650R
Scientific Radio Systems remote transceiver control unit. Includes front panel controls: 4 rotary switches; 1 1P10T, 1 2P6T, 1 2P5T & 1 2P4T with SPST AC switch. Three lighted pushbutton switches; 1 pair momentary DPDT, 1 pair independant maintained DPDT & 1 pair alternating, maintained DPDT. Internal boards included CW sidetone, VOX, squelch, power supply & 4 watt audio amplifier that drives the front panel speaker. Squelch control senses voice (or lack of) on incoming audio signal. All audio in and out are 600 ohm balanced through included transformers. VU meter on front panel for setting in / out audio levels. Some additional control and FSK / loop boards not included. Operates on 115 vac but does not include power transformer. Install your own 12 vac transformer to make the unit work. Partial manual included. SR-1650R Remote Unit size: 6-3/16"H x 11-13/16"W x 15"D.
$119 each
 
$45 each

Aluminum Chassis

(ENC) LIMITER-AM
Harris aluminum chassis. "AM Limiter". Various staked standoffs. Rack mountable. 19" rack, 3-1/2" high, 12-1/2" deep.
 

Harris Chassis

(ENC) LIMITER
Harris chassis. "Solid Statesman FM Limiter". 19" rack, 3-1/2" high, 13-3/8" deep. No lid. New!!
$33 each
 
$35 each

Hoffman Enclosure

(ENC) BADGER
Hoffman enclosure for use with the Badger OmniRemote. Brand new cabinet with original electronic equipment removed. The floating sub deck remains allowing fastening of any new system and is removable with 4 quarter turn screws. White powder coated HEAVY DUTY steel. NEMA type 3R. Rainproof. 44 lbs. Dimensions: 22"H x 20-1/4"W x 8-3/4", lockable.

 

Metal Case

(ENC) CY-684/GR
Suckle Electronics U.S. Army Signal Corp. metal case with latch. Olive drab. Molded and felt padded interior. Great carry case for... vibrators or telescope eye pieces / accessories or any parts that need T.L.C. when being toted. New, unused. Measures: 3-1/4"H x 10-3/8"W x 5-1/16"D.
$169 each - $150 (6+), $125 (25+)
 
$25 each

Power Splitter / Combiner

(RF) PD2
Wilman Co. power splitter / combiner. 3 (three) "SMA" female connectors. Aluminum case with removable lid. Installed stripline circuit board easily removed with 3 screws. Inside milled out to 1-1/4" x 1-3/8" x 5/16". Outer dimensions: 2" x 2" x 3/4". All remaining units are stamped PD1.

We believe this power splitter / combiner is made for 800 - 900 MHz range. 500 pcs available.

 

Wood Audio
Amplifer Cabinet

(ENC) COMP-T
Compass Technical made a stereo amplifier / tuner back in the 60's and this is the cabinet. I have a hundred or so new, still in the wrapper. The real, authentic WALNUT veneer over wood is beautiful. This cabinet contains NO METAL.

Outside: 15-3/8" x 10" x 5-3/4"H
Inside: 14-5/16" x 9-1/8" x 4-1/4"H

$8.95 each - $8 (3+), $6.50 (25+), $5 (100+)
 
$17.95 each - $15 (3+), $13.50 (25+)

Film Can with
Empty Film Reel

(ENC) FILM/R
Film can. 2 part. Tin / steel. Includes empty film reel. Excellent condition. 3-5/8"D flange, 2-3/4"H, 7/8"D center. 3.75" inside diameter, 2.937" internal height.
 

Film Can

(ENC) FILM
Film can same as left except film reel NOT included. Used.
$1.75 each - $1.60 (20+), $1.40 (100+), $1.15 (500+)
 
$1.50 each - $1.35 (20+), $1.15 (100+), 90¢ (500+)

Jack Box
J-939B/U

(ENC) J939B/U
Jack box, J-939B/U. Solid aluminum formed box with lid. Four 1/4" jacks. Two switched (JJ-085). One normally closed switch and a normally closed tip connection. Two without switches (JJ-086). Knock outs on 3 sides for wiring. A great project box for shielded circuits. Lid measures: 7-1/2"L x 4-1/8"W x 3/8"H. Box measures: 7-3/8"L x 3-7/8". 1-1/2" overall height. NSN: 5935-736-2478.
 

Heatsink / Chassis

(ENC) CMP60956D
Heatsink / chassis. Chromed solid copper. Four threaded studs, 3.17" x 1.74" c-c. Five press-fit nuts. Weighs 1.62 lbs. Dimensions: 7-5/8" x 3-5/8" x 1-7/8".
$15 each - $12 (3+)
 
$22 each - $20 (6+)

Pomona Box
"BNC" Male / Female

(ENC) 2391
Pomona box. "BNC" male / female. Removable cover with screws. 2.25" x 1.13" x 0.88".
 

High Pressure
Stainless Box

(ENC) 23036096
9 penetration connectors with 3/8" O.D. seals. 2 pressure switches rated at 1,000 psig on side. 1-1/2" FIP threaded opening on bottom. 2 terminal strips inside. 8" x 10". Only 1 left.
$22 each - $19 (5+)
 
$150 each

 

Battery Box

(ENC) 66D44456
23" wide x 24" high x 18" high external dimensions. Steel. 82 pounds worth. Light green. Handles on lid. New in the carton.

 
 
$175 each
 

Electron Tube Shield
RCA

Fingerstock for positive RF sealing of compartment
(ENC) 423147
RCA electron tube shield. Built-in grounding gasket. External dimensions: 3.5" x 4.55" x 2.07" high. Internal dimensions: 3-1/8" x 4-1/4" x 2" deep. NSN: 5960-00-060-9988.
 

Aluminum Component
Mounting Box

(ENC) E10888
1-11/16" deep, 4-1/8" wide, 2-11/16" high. Box includes card guides and includes flange mount, 5-1/4" x 2-1/2".
$10 each
 
*** SOLD OUT ***