Index of /users/billmc/hp48

      Name                    Last modified       Size  Description


[DIR] Parent Directory        12-Dec-2019 16:00      -  
[TXT] READ_ME.txt             19-Nov-2018 11:50     3k  
[TXT] SPKR                    25-May-1999 23:48    11k  
[TXT] archive                 25-May-1999 23:48     1k  
[TXT] bugs                    25-May-1999 23:48     1k  
[TXT] spkr.asc                25-May-1999 23:48    23k  
[   ] spkr.doc                19-Nov-2018 11:51    17k  
[TXT] spkr.doc.txt            19-Nov-2018 11:51    17k  
[TXT] spkr.rpl                25-May-1999 23:48     7k  
[TXT] spkr.txt                19-Nov-2018 11:51    10k  
[TXT] spkr.uu                 25-May-1999 23:48    16k  
[   ] spkr48_3.6.shar         25-May-1999 23:48    79k  
[   ] spkr48_3.6.shar.old     25-May-1999 23:48    76k  

[Last modified: 07-Feb-07]

HP48 Speaker Design Library
Bill McFadden
billmc@rdrop.com

This is a library speaker design equations for use with HP48GX or HP48SX
calculators.  The most current version can be found at:
http://www.rdrop.com/users/billmc


Speaker Design 3.6 files:

README:		This file
READ_ME.txt:	This file

spkr.doc:	Instructions for use
spkr.doc.txt:	Instructions for use

spkr.txt:	Loudspeakers tutorial

spkr.rpl:	RPL Source code
		BYTES  #70F0h	8515

spkr.asc:	->ASC encoded binary
		BYTES  #DFFDh  11522
		(requires memory card to download on a 48SX)

spkr.uu:	Uuencoded binary (for unix systems)
		BYTES  #DFFDh  11522

spkr48_3.6.shar:	Unix shell archive of the above files.

SPKR:		Decoded binary  (download in binary mode)
		BYTES  #DFFDh  11522

bugs:		A list of things I'd like to fix someday



Download and installation

You have several choices (from best to worst):

A. download SPKR from the web
   connect a serial cable between your computer and HP48 calculator
   start kermit on your computer and set the file type to binary
   set your HP48 to binary transfer mode
   use kermit to transfer SPKR from the computer to your HP48

B. download spkr.uu from the web into a unix computer
   use uudecode to convert it to binary (the resulting file is named SPKR)
   connect a serial cable between your computer and HP48 calculator
   start kermit on your computer and set the file type to binary
   set your HP48 to binary transfer mode
   use kermit to transfer SPKR from the computer to your HP48

C. download spkr.asc from the web
   connect a serial cable between your computer and HP48 calculator
   start kermit on your computer and set the file type to text
   set your HP48 to ASCII transfer mode
   use kermit to transfer spkr.asc from the computer to your HP48
   run the ASC-> utility in your HP48 to convert it to binary
   save the binary as SPKR

D. download spkr.rpl from the web
   connect a serial cable between your computer and HP48 calculator
   start kermit on your computer and set the file type to text
   set your HP48 to ASCII transfer mode
   use kermit to transfer spkr.rpl from the computer to your HP48
   save spkr.rpl in a variable named SPKR
   (this method is not recommended because it does not include the binary
   variable Mpar needed by the multiple equation solver)

E. download spkr48_3.6.shar from the web into a unix computer
   type "sh spkr48_3.6.shar" to extract the individual files
   follow B, C, or D above for the file type you wish to use

Once you have SPKR installed in your HP48, go to the SPKR directory and
start the multiple equation solver.  Next, follow the directions in
spkr.doc.

NOTES:

Kermit is a free file transfer program available from:
http://www.columbia.edu/kermit/

The ASC-> utility is available from:
http://ftp.funet.fi/pub/misc/hp48sx/comms/asciiencod

If you use ftp to transfer binaries (such as from a unix system to a PC), be
sure to set ftp to binary mode first.