The following warnings occurred:
Warning [2] Undefined array key 5566 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 5568 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 5573 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 5576 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 5577 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 5583 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 5584 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 5601 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined variable $thread - Line: 295 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 295 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Trying to access array offset on value of type null - Line: 295 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 295 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined variable $fid - Line: 295 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 295 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 5601 - Line: 331 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 331 errorHandler->error_callback
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 304 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 5584 - Line: 331 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 331 errorHandler->error_callback
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 304 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined variable $theme - Line: 3 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php(305) : eval()'d code 3 errorHandler->error_callback
/inc/plugins/threaded_mode.php 305 eval
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Trying to access array offset on value of type null - Line: 3 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php(305) : eval()'d code 3 errorHandler->error_callback
/inc/plugins/threaded_mode.php 305 eval
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined variable $theme - Line: 3 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php(305) : eval()'d code 3 errorHandler->error_callback
/inc/plugins/threaded_mode.php 305 eval
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Trying to access array offset on value of type null - Line: 3 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php(305) : eval()'d code 3 errorHandler->error_callback
/inc/plugins/threaded_mode.php 305 eval
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined variable $lang - Line: 5 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php(305) : eval()'d code 5 errorHandler->error_callback
/inc/plugins/threaded_mode.php 305 eval
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Attempt to read property "messages_in_thread" on null - Line: 5 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php(305) : eval()'d code 5 errorHandler->error_callback
/inc/plugins/threaded_mode.php 305 eval
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks





9815A/S questions



#9

Hi

I finally received my 9815S

It's surely the desktop calculator with the "sexiest" form. I really like to look at it. Nice industrial design of the 70s

Now I have some questions:
-) What paper should I use for the machine? Is it thermal paper and is there a replacement?

-) Where can I get the DC-100 tape cartridge? Are they available somewhere ?

-) My 9815 shows a "9821A" on the front, but "9815S" in the paper compartment. Was that common? I'm pretty sure, that I own a 9815S, because it has the 3800 steps...


#10

Hi Reinhard,

Take a look at the pictures of the 9815 and 9820 (or 9821) here on the HP museum. The 9815 and 9821 are very different machines. The 9821 is much larger than a 9815, and it would be hard to mistake one for the other. The 9820 and 9821 have three ROM sockets on the left side of the top of the machine directly behind the keyboard. Directly below them on the keyboard is three sets of keys. Each set has two columns of keys. When a ROM is plugged in, it's functions are automaticly assigned to the set of keys below it. The 9815s don't have any ROM sockets. The 9815S, 9815 option 1, 9820 and 9821 all have sockets in the back of the machine for I/O interfaces. (The 9815x and 982x machines have different intefaces.) I have no idea how you ended up with a machine that has both labels. BTW, A 9821 is a 9820 with a tape drive instead of mag card reader.

You can use ordinary thermal paper in the printer. If you can find a supply of old DC-100 tapes they'll work fine in your machine. Or you can buy the HP brand tapes but frankly the HP tapes aren't very good. They have a tendency to shed the medie. When they do, the clear tape material is exposed and the End-Of-Tape sensor detects it and reports it as an Unexpected End of Tape error. ALL of those type of tapes were made by 3M company but for some reason the HP marked ones seem to be the worst of any of the brands that I've tried. I've also used old DEC tapes in these tape drives. All the different brands work fine but you have to INITIALIZE the non-HP tapes in the machine before you can use them. But before you try a tape in the drive, check the drive wheel. You'll probably find that it's gotten soft and gooy. That's a common problem with this type of tape drive. The HP-85s have the same problem and it's rare to find one that still has a good drive wheel.

I have both of these machine so let me know if you have any more questions.

Joe


#11

OOOps

"9821" is a typo. It should read "9815A" on the front and "9815S" in the paper compartment.

Sorry for any confusion I might have created. (It was 3 a.m. here, when I wrote this message.

I KNOW, I have a 9815(A or S) (guess, they aren't easy to confuse)

BTW, thanks for the info.

Reinhard


#12

Reinhard,

Ok, that makes a lot more sense. The 9815A did not have any expansion slots unless you added option 002. Later, the 9815S included the expansion slots as standard. It sounds like you have a transistion model that was built as an S but it still has the A sticker on the front. See my 9800 webpage for more details.

Joe


#13

Yes, then it's clear, that mine is a 9815S.
Great machine.

BTW: I own a 9872S plotter which has a port labeled "9815A" besides it HP-IB port.

The 9815A port has 13 pins (it's a 14-pin Amphenol plug, just like the larger IB plug, one contact isn't present).

Does anybody know, how to connect these ?

Do I need a seperate interface ? (I think yes, but which interface ?)
How can I get such a goodie ?

#14

If you meant 9815A on the front and 9815S inside, then yes - I have calculators marked like that too. I also have 9815As with options that make them equivalent to the 9815S.

This is also one of my favorite designs.


#15

You write in the 9815 page:

HP later introduced the HP 9815S which included 3800 total program steps and two I/O channels standard.

So I guessed, that an upgraded 9815A had a maximum of abt. 2500 steps.

What does "2 I/O channels standard" mean ? Were there any 9815s with only one rear expansion port ?
Or were 2 interfaces included in the "S" version ?


#16

The two I/O channels (rear interface slots) were optional in the 9815A but standard in the 9815S. There was no option for a single I/O channel in either model. The 9815A was initially offered with 10 data registers and 472 programming steps. Option 001 upgraded it to 2008 steps. HP introduced the 9815S in 1980. The 9815S replaced the 9815A and included the two I/O slots and 3800 programming steps as standard. HP dropped the 9815A from the catalog in 1981. The 9815S was dropped after the 1982 catalog.

9815 Options
Option 001 (9815A only) 2008 programming steps
Option 002 (9815A only) two I/O slots


Possibly Related Threads…
Thread Author Replies Views Last Post
  9815A/S option ROM Joel Setton (France) 0 789 03-08-2011, 12:43 PM
Last Post: Joel Setton (France)
  9815A manual Joel Setton (France) 0 741 05-21-2010, 04:25 PM
Last Post: Joel Setton (France)
  hp 9815a/s program tapes frankabc 3 1,344 10-28-2009, 09:46 AM
Last Post: Joel Setton (France)
  hp 9815a/s repair frankabc 33 6,981 09-28-2009, 03:26 PM
Last Post: Joel Setton (France)
  hp 9815a repair frankabc 6 1,861 10-16-2007, 12:27 AM
Last Post: frankabc
  HP 9815A repair frankabc 7 2,004 08-25-2007, 02:26 AM
Last Post: frankabc
  HEWLETT PACKARD 9815A Sale !!! gileno 2 1,122 02-22-2007, 05:43 PM
Last Post: Steve Borowsky
  9815A up for auction Les Wright 3 1,308 01-15-2007, 02:49 PM
Last Post: Steve Borowsky
  Synthetic Programming on the HP-9815A/S John Ioannidis 9 2,281 12-04-2005, 02:00 AM
Last Post: John Ioannidis
  HP 9815A or 9815S? Ken 5 1,526 12-02-2004, 09:56 PM
Last Post: Ken Delano

Forum Jump: