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, December 29, 2014

F2AS

A recent addition is an F2AS body, a DS1 EE aperture control.  Also an MD3 motor.

I had an F2 built up in the early 70s like this and carried some combination for a few years.  I'm still looking for a cheap MD1 or MD2 motor, but this MD3 motor set showed up at a reasonable price compared to others over the Christmas week.

F2AS, 55 F1.2, MD3


rear view showing MD-3




Above shows the F2AS with the DS-1 installed.


Seller sold the DS-1 with the box matching the serial of the unit inside.  Original sale price marked at $444, which fits with what I had to pay back in the day.

I think I had $1500 bucks into a new unit and was lucky to get out of it for what I had in it at the time after carrying it for a while.

DS-1 seems to move with a fresh battery purchased with new stock.  new battery is NMH, rather than NiCad which means it carries 330 mah rather than 220 mah that the original NiCad could hold.

I'm not sure I'll pick up the charger, since it is way over prices as a curio.  The battery isn't too hard to charge with a current limited bench supply, and I have the curves for charging the thing.  I may see about making a 4.5v current limited supply to charge it.


Sunday, November 2, 2014

Readynas Infrant 1100 and NV+ power supplies. Original Documents for 1100

A link for the original Readynas 1100 cd from infrant is here.


The original documents are scanned there as well.

2014-1103 Update:  Managed to find and buy an exact NOS replacement of this supply.  Once it arrives will update on what has to be modified to get it to match this installation.  I could verify the brown and purple wires on it (whatever they are) on the replacement.  Replacement had leads to connect to floppy / HD / SATA.  Also had the booster +5 (Black and Yellow) extra pins for the connector for P4 boards.

2014-1114 Update:  NV+ power supply.

NV+ power supply seems to be the same form factor.  Here are a couple of good photo links to the details of that supply.

These photos are taken from ones by a posting by Tom Neilsen in 2008

This is a good photo showing the mod needed from a normal ATX supply


This shows the "new" power supply that can be used to replace the NV+ supply.  It is the same supply as the 1000.  However, it must have the cover removed, and the fan removed.  I don't know how this guy did with that arrangement.

There is no bulkhead cutout for the supply.  However the footprint matches the one that Infarant / Netgear used.


Below is a comparison of the two supplies.  Mine matches the "Old" one below, and the new one will match the New one.

At the bottom will be the entire post copied from Netgear's Readynas support site.



Photos of the power supply in 1100 are here.

Now a search for a replacement in 2014 November.







Power supply label

Power connector to board

Readynas 1100 system board
 Green heatsink covers main system board.  A USB memory stick must contain the boot information for the basic boot.  The board has what looks to be a 64 bit PCI connector, but only the middle portion is connected to anything on the disk array card.
 Memory Sim.  Looks to be laptop type card.
 Boot USB stick.
 Power connector views.  Will use to correlate to new replacement supply



 Shot with a flash for better color recognition.




Update:

The power supply that came was an exact match for the label, but had a couple of extras.

There was a normal "floppy' cable with 5 and 12 v feeds both wired up, as well as the extra 4 pin P4 booster for +12.

There were 4 pins to pull from the extra molex connector, and one from the main 20 pin connector.

An additional 12v line had to be pulled from the booster connector block an moved to an open hole on the 20 pin main connector.  And one pin had to be pulled and replaced with ground.

Besides that, I pulled all of the pins from the 4 pin flyer cable.

i'm leaving the sleeving off the wire bundle as well.  Another posting concerned pulling all 20 pins and putting the cable bundle thru a braided sleeve.  I am not going to do that.

The hint about pulling molex pins that turned out to be the most useful was one which suggested using a couple of regular office staples.

The method is as follows.  Dispense 2 staples (more if you think you will flub preparing 2). and straighten on pin out to be parallel with the back of the staple.  This gives an L shaped staple.

With a pliers or such you insert the staples on either side of a pin to be pulled from the plug side of the connector (not where the wire is, but the pin side).

seat the staple in as far as can be pushed w/o a lot of force.  It should go in to just shy of the place the block of the Molex connector is.  There are two indents there with small flaps which hold the pin in from being backed out when you plug in the connector.

Once these are released you can pull the pin from the back by the wire, and with a small wiggle it should slide out.

Reform the hold flaps and it can go into another hole in the connector and be just fine.

Here is a youtube video showing how to do it.  a movie is worth a thousand words.

http://youtu.be/9YjD_o-rDvM

Posting from Readnas Support Site showing pinouts for replacement supplies for NV+

http://www.readynas.com/forum/viewtopic.php?t=13492#p91253

I changed out my readynas PSU while waiting 4 weeks for a replacement. I documented what I did here:

I purchased an "Enhance ENP-2322B-G 220W 1U PFC RoHS Power Supply" from ebay for $36.43.

My album has more comments and observations.
http://picasaweb.google.com/trophygeek/ ... Replacment

Also, I now have an official PSU replacement from Netgear. Contact me and I'll post it to ebay for you to buy.

Image

Image

Image

Image

It's been up and working for a month now without any issues.

Thursday, October 23, 2014

IC's with dimples on covers


The photo above has packages with 4 dimples on the cover.
The package by itself at the bottom is the same, and even shares a near datecode with the above, but has no dimples.

Anyone know why the dimples?  These chips don't get hot and would not have thermal cap in operation.

And for those who want to drool, the 3 ICs with windows are Intel 1702 pulls he has.

Here are closeups of just a single package from each photo.