Jim's collections: hp

Showing posts with label hp. Show all posts

Tuesday, January 19, 2016

HP ET-4382 Diode test set

It is a "minimum system" scope, w/ the classic "octopus" circuit built-in, and it is factory made.  I don't know if they used it internally only or it was a public offering.

The octopus is a short form, minimalist, simple curve tracer.  But it is incredibly effective for Q & D bench work.  All you need is a filament transformer, 3 resistors IIRC and a scope set for X-Y mode.

The Navy OS-8 scope has the same built-in w/ jacks on the panel for such testing diodes, transistors and junctions.

ET-4382 Diode Test Set





Testing a Diode









Internals





Schematic

Thursday, April 30, 2015

2762A Terminal Printer GE Terminet 300

HP 2762A terminal

General Electric Terminet 300

Some HP equipment sites found researching this (not all have terminal info)

http://www.kennethkuhn.com/hpmuseum/

http://www.hpmuseum.net/display_item.php?hw=334

Documentation on hpmuseum site

http://www.hpmuseum.net/exhibit.php?hwdoc=334

Service manuals: Bitsavers, thanks Al for these, also thanks Pierre for his scanning

http://bitsavers.trailing-edge.com/pdf/ge/terminet/

Some views of the beast.

keyboard view

Platten

Data Connection

Overall. Missing paper holding rod, paper.

Option Switches:

Line Space 1, 2
Rate 100,150,300
Full Half Local (duplex setting)
Transparency On / Off not populated on this unit.

Print band, showing some letters

Ribbon on right side

Paper cavity, Heatsink for motor drivers.

Paper path sticker

Ribbon installation sticker

Left ribbon spool

Accessory for Reader / Punch. The Terminet could be used for Telex, and paper tape in / out was a usual accessory for document preparation and recording for Telex.

Some boards in the card cage, left side of cage

Some boards on the right side of the cage

----------------

HEWLETT PACKARD

9500B-A68

1432A00122

LSi PN 457450-01

-----------------

Line

117V +- 10%

2 Amps @ 60hz

-----------------

Auto LF on / off switch, right, above keyboard.

All Caps on / off switch, left above keyboard

Status indicators

Local

Standby

Online

Ready

Interrupt

Alarm

Computer World note, September 1973, early offering.

Tester unit for Terminet 1200 (acquired from ebay auction 4/30/2015)

Monday, October 24, 2011

Sunday, May 15, 2011

each unit has 2 73.6gb 10000rpm SCSI drives.

First unit had 2gb, one 3.2ghz Xeon. one drive dead. Ubuntu 10.4 installed on one drive

Second unit has 4gb 2 2.4ghz Xeon both drives work. Also a wide scsi controller with external SCSI3 (mini) connectors. both drives work. installing Ubuntu 10.4

ILO is included for serial operation of servers. 9600 baud serial access with VT100 cursor control access to each server is enabled. Stickers on top have login and password for ILO access.