Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!seismo!columbia!rutgers!sri-spam!ames!sdcsvax!ucbvax!FINGATE.BITNET!MAILER-DAEMON From: MAILER-DAEMON@FINGATE.BITNET (Mail Delivery Subsystem) Newsgroups: comp.sys.atari.st Subject: Returned mail: Unable to deliver mail Message-ID: <8707151533.AA26317@ucbvax.Berkeley.EDU> Date: Wed, 15-Jul-87 11:34:46 EDT Article-I.D.: ucbvax.8707151533.AA26317 Posted: Wed Jul 15 11:34:46 1987 Date-Received: Fri, 17-Jul-87 06:19:52 EDT Sender: daemon@ucbvax.BERKELEY.EDU Distribution: world Organization: The ARPA Internet Lines: 500 ----- Transcript of session follows ----- 554... Unknown fudec host name : sampo ----- Unsent message follows ----- Received: by santra.UUCP (5.51/6.4.TeKoLa) id AA12399; Wed, 15 Jul 87 13:29:10 +0300 From: Message-Id: <8707151029.AA12399@santra.UUCP> Received: by fingate Wed Jul 15 13:29:03 from MAILER@FINHUTC.BITNET via rscs BSMTP. Received: by FINHUTC (Mailer X1.24) id 7583; Wed, 15 Jul 87 06:39:51 FIN Date: Tue 14 Jul 87 15:11:39 PDT Reply-To: Info-Atari16@Score.Stanford.edu Sender: "Atari ST users forum (INFO-ATARI16)" Original-From: Info-Atari16 Digest Subject: Info-Atari16 Digest V87 #276 To: , Original-To: , Info-Atari16 Digest Tuesday, July 14, 1987 Volume 87 : Issue 276 This weeks Editor: Bill Westfield Today's Topics: FCC news release on PDN surcharge Re: Lost disk sectors Motherboards? SIGNUM internal format ST Circuit Analysis Prg ---------------------------------------------------------------------- Posted-From: The MITRE Corp., Bedford, MA To: info-atari16@score.stanford.edu Subject: FCC news release on PDN surcharge Date: Thu, 09 Jul 87 21:18:51 EDT From: jhs@mitre-bedford.ARPA From: David Roode ---- Following is the FCC access charges news release of June 10, 1987. (This is not the official text of the Commission's Notice of Proposed Rulemaking (NPRM).) FCC PROPOSES ELIMINATION OF INTERSTATE ACCESS CHARGES EXEMPTION FOR ENHANCED SERVICE PROVIDERS The Commission has proposed elimination of the exemption from interstate access charges currently allowed enhanced service providers, effective January 1, 1988. Charges for intrastate service would not be affected. Enhanced services add value to, or enhance the use of, basic transmission service. Examples of enhanced services, which the Commission defined in its Computer II and Computer III procedings, include computer-based applications such as protocol processing, information retrieval systems and voice or message services. In its access charge proceeding, the Commission provided for exemptions for a number of groups. These exemptions have gradually been eliminated. In the pre-access environment, enhanced service providers and WATS resellers were paying local business exchange service rates for their interstate access, rather than the higher charges that other common carriers (OCCs) were paying and the even higher amounts assessed to MTS and WATS through the divisions of revenues and settlements processes. The Commission decided that the immediate imposition of interstate access charges on enhanced service providers and resellers could affect their ability to provide service during the time they were adjusting to the new access charge rules. Consequently, the Commission granted enhanced service providers, as well as resellers, a temporary exemption from payment of interstate access charges. In proposing to eliminate this exemption, the Commission said it was concerned that the charges currently paid by enhanced service providers did not contribute sufficiently to the cost of the exchange access facilities they use in offering services to the public. Concerns about rate shock might justify a temporary, but not a permanent, exemption from access charges. Enhanced service providers have had ample notice of the Commission's ultimate intent to apply interstate access charges and ample opportunity to adjust their planning accordingly. Moreover, it said, the potential financial impact on enhanced service providers of eliminating their exemption is substantially smaller than it was at the time the exemption was granted. In particular, the Commission noted that the common carrier line charge has decreased dramatically with the introduction of subscriber line charges. END - ------- End of Forwarded Message ------- End of Forwarded Message ------------------------------ Date: 9 Jul 87 20:46:03 GMT From: tektronix!sequent!mntgfx!dclemans@ucbvax.Berkeley.EDU (Dave Clemans) Subject: Re: Lost disk sectors To: info-atari16@score.stanford.edu From what I've understood, the two missing sectors in GEMDOS disk partitions ar a result of a mistake made by whoever at Digital Research implemented GEMDOS. MS-DOS reserves the first two entries in the FAT, as does GEMDOS. However, MS-DOS adjusts the FAT table size to account for the reserved entries (i.e. increases its size by two). GEMDOS doesn't do this; thus the last two clusters get lost. dgc ------------------------------ Date: 10 Jul 87 01:24:29 GMT From: tektronix!tekcrl!tekfdi!mhorne@ucbvax.Berkeley.EDU (Michael T. Horne) Subject: Motherboards? To: info-atari16@score.stanford.edu [] I'm looking for sources of motherboards for the Mac, the ST, and the Amiga. I don't know if they are even available, so could someone in the know please inform me of the availability of the boards? I think I heard something about Mac motherboards being available, but I need more information. Any info about prices, vendors, and availability would be greatly appreciated. Mike -- Michael Horne - KA7AXD | DOMAIN: mhorne@honda.fdi.tek.com FDI group, Tektronix, Inc | UUCP: tektronix!tekfdi!honda!mhorne Day: (503) 627-1666 | INTERNET: mhorne%honda.fdi.tek.com@relay.cs.net ------------------------------ Date: 2 Jul 87 16:03:05 GMT From: eagle!icdoc!dcw@ucbvax.Berkeley.EDU (Duncan C White) Subject: SIGNUM internal format To: info-atari16@score.stanford.edu Hello everyone, A friend of mine has a small problem: he has entered a 40 page paper about Theoretical Physics [chock full of silly little Greek symbols, mathematical equations and such like] into SIGNUM (a document processing system on the Atari ST). Now, he has decided that Signum is not good enough for his purposes, and prefers TeX [on a VMS VAX] So, we want to extract as much of the data as possible out of the Signum files [ideally, text, greek and equations, but just having the ascii text would be better than nothing] The manual doesn't appear to say anything about the internal format that Signum uses. It contains a section on importing plain ASCII files into Signum, but no corresponding section on exporting. [yes, I know that's more difficult] We have started by looking at a hex dump of a fairly short section of the paper. After some initial blurb, which appears to include the names of the fonts used in the text, the rest of the text appears to consist of a sequence of character pairs : the first is some form of 'tag' character, and invariably has the top bit set, and the second is the actual character. The major problem is that spaces are not stored in the document: it seems that a word start is signalled by a tag value of one of several values: A0, A4 and 9A are three such values. However, we have not managed to deduce when it uses which particular values, or indeed what the full set of 'word start' tags are. Worse, there are some tag values [98, for example] which do not appear to be UNIVERSALLY 'word start' tags: some words are marked by this tag, but the same tag value is also present in the middle of other words! Also, for some reason, y and z are swapped, and the word 'We' gets rendered as "W e". We have had no real success with the equations or greek letters: however, we can probably mark their positions [or at least, the positions of total garbage] What we already have is much better than nothing, but we would appreciate any hints, pointers, suggestions, full-blown 'C' or PASCAL source code ( well, it's worth a try :-) on the format Signum uses. If we get enough information, we could write a conversion utility which will convert Signum files into ASCII files, probably with special 'dot commands' to represent the equations and greek squiggles. [ like troff/eqn on Unix ] The ultimate tool for this job would obviously be a Signum -> TeX translator. Unfortunately, I do not know very much about TeX either, so I couldn't really write such a beast. [anyone else want a fun project, and know TeX and Signum ???] Please mail any suggestions etc etc to me, and I'll summarize what I get... ecnavda ni xnahT nacnuD (well, everyone says I'm backward :-) ----------------------------------------------------------------------------- JANET address : dcw@uk.ac.ic.doc| Snail Mail : Duncan White, --------------------------------| Dept of Computing, This space intentionally | Imperial College, left blank...... | 180 Queen's Gate, (paradoxical excerpt from | South Kensington, IBM manuals) | London SW7 ---------------------------------------------------------------------------- Tel: UK 01-589-5111 x 4982/4991 ------------------------------ Date: Fri, 10 Jul 87 07:30:38 EST From: maccarle@ed.ecn.purdue.edu (Carl A Maccarley) To: info-atari16@score.stanford.edu Subject: ST Circuit Analysis Prg I am posting this for Peter. It is a very well written circuit analysis program, for small signal analysis of lumped circuits. Includes complete docs. I've only tested it on mono, but no mention of any problems with color. Four uuencoded files will follow this, three at about 32K and one at about 5K. Prelim info below should cover everything. - carl maccarle@ed.ecn.purdue.edu ______________________________________________________________________________ From: "Peter_VerBruggen.HENR801c"@Xerox.COM The Circuit Analysis Program (CAP) is an analysis tool for determine the steady-state AC behaviour of electrical/electronic networks. The network may contain resistors, capacitors, inductors, controlled cur- rent sources (e.g. transistors, op-amps etc.) and independent current sour- ources. CAP was originally issued for the HP85, but has been adapted for the ST after a lot of re-writing and testing. Although CAP does not have the capabilies of programs like e.g. SPICE, in small AC circuit analysis however, the output results are satisfactory and in most cases accurate enough to predict the actual circuit behaviour. Output can be any node voltage, branch voltage, branch current, branch power or ratio's thereof. Tabulated or plotted outputs are available with linear or logarithmic fre- quency sweeps. CAP is primary intended for electrical engineers or those who are familiar with electrical networks and basic electrical/electronic theory. All files belonging to CAP must be located in folder CAP, including folder GUIDE, which contains several help-files. Files with the extension CIR are circuit examples, which can be loaded and analysed after frequencies and output quantities are selected and calcula- tions have been performed. NOTE: Hardcopy of full screen can be made by ALTERNATE+HELP. We will offer CAP as a public domain program for non-commercial usage and therefore assume no responsibility and shall have no liability, consequen- tial or otherwise of any kind arising from the use of this program. Ger Gruiters Rank Xerox Venray The Netherlands ---------------------------- Structure of files --------------- G6.DOC 851 \CAP\GUIDE G4.DOC 1114 \CAP\GUIDE G5.DOC 878 \CAP\GUIDE G3.DOC 1042 \CAP\GUIDE G1.DOC 387 \CAP\GUIDE G7.DOC 998 \CAP\GUIDE G8.DOC 768 \CAP\GUIDE G10.DOC 757 \CAP\GUIDE G9.DOC 643 \CAP\GUIDE G2.DOC 1035 \CAP\GUIDE BJT.PIC 32000 \CAP CAP.PIC 32000 \CAP CAP.PRG 40980 \CAP CAPNXT.RSC 20904 \CAP EX1.CIR 584 \CAP EX2.CIR 584 \CAP EX3.CIR 584 \CAP OPAMP.PIC 32000 \CAP PARAM.PIC 32000 \CAP README.DOC 1639 \CAP WIENBRDG.CIR 1358 \CAP ---------------------------- Documentation ------------------- 1.0 General program usage ===================== - Select New cir from Menu "Circuit" , select Menu "New cir" next and enter a new circuit, or load 'old' circuit from disk (filename.cir). - Select frequencies and output quantities before calculation. - Plotting is done after calculation. - Tables are output automatically during calculation. 2.0 Example of circuit description ============================== 1 IS 0 TO 1 1 AMPS 0 DEG 2 L 1 TO 2 2 E-4 H 3 R 2 TO 3 .33 OHM 4 C 3 TO 0 2.2 E-4 F 5 R 2 TO 0 20 OHM Note in the above example that circuit elements are described by their connec- ting nodes, their values, and a branch or element number. It is this branch number which is specified when requesting branch voltages, currents, or pow- ers for output. You would also specify this number when deleting an element. Due to the way the program orders itself, as you add independent current sour- ources they are added to the top of the list. As you add any other elements the are added to the bottom of the list. CAP is divide into three sections a) Input of circuit, b) Selection of output quantities and frequency sweep, and c) Plotting. These sections are completely independent in that you can change any parameter of any section and retain all other parameters. 3.0 Input of circuit ================ Circuit elements are input from the New circuit Menu, one element at a time with the required information being the element type, the connecting nodes and the value of the element, (i.e., 10 Ohm, .1 Henrys, etc.). The first thing that must be done is to number the nodes. A node, for the purposes of this program is any point where two ore more circuit elements meet. The no- des must be consecutive integers, consecutive numbered nodes need not have any special topological relationship to each other. While inputting each element, the program will ask for the connecting nodes with the following question: NODES: FROM, TO?. The FROM node is the node where the current leaves the element. For the non-source elements (resistors, inductors and capacitors), it is not important if you don't know the direction of the current flow. Simply assume one. If you assume wrong, the current will be computed 180 degrees from the expected direction. Study the example's EX1.CIR and EX2.CIR. 4.0 Selection of Output Quantities and Frequency Sweep ================================================== After a circuit has been input, but before calculation beings, you will need to select those quantities you wish to observe and the frequencies at which to ob- serve them. There are two ways that the program can provide output. printed table of up to 50 quantities per frequency, or a displayed plot. Only one method can be selected at a time. Available output quantities are node voltages, branch voltages, branch currents branch power and ratio of any two quantities. Node voltage zero is not avail- able for output, but is always 0 volts at 0 degrees. A branch voltage is the voltage across an element. It is the node voltage at the positive node minus the node voltage at the negative node. The positive node for a controlled or independent current source, by convention, is the node where the current leaves the source (the TO node). The positive node for resistors, inductors and capa- citors again by convention, is the node where current enters the element ( the FROM node. All output quantities are given in magnitude and phase format. For power this means that real power, is measured in watts at 0 degrees. Reactive or imaginary power, measured in VARS, is +90 degr. for inductors and -90 degr. for capacitors. For non- source elements power is defined as power absorbed. For source elements power is defined as power delivered. For any given circuit the complex sum of power delivered by the sources will equal the complex sum of the powers absor- bed by the elements. The frequency sweep is selected by specifying a minimum frequency, a maximum frequency, and an increment. If the increment is positive each new frequency will be the old frequency plus the increment. If the increment is negative, you have specified a logarithmic sweep with each new frequency equal to the old frequency times the absolute value of the increment. 5.0 Plotting ======== Plotting is accomplished after calculations are performed. The magnitude and phase of the output quantity selected are stored for up to 50 frequen- cies. With the same set of data you may make any number of plots. You need not select any plotting parameter. Automatic labeling and scaling are default. The automatic labeling puts out the following information: whether you're plotting magnitude or phase, the output quantity, and whether dB's are selected for ratios. If automatic labeling is not sufficient you may select any 18 characters. If you wish to select different scaling parame- ters you may select the maximum. minimum and the space between the tic marks. These parameters may be selected independently for the X and directions. You may even leave one direction automatic and select the other. 6.0 Additional explanation for some commands ======================================== New cir : Enter a new circuit, same input as add element. Add elem : Add circuit element to an already existing circuit. RES When R NODES :FROM, TO? is displayed, IND 1) Enter the node where currents enters the resistor followed by CAP a comma. 2) Enter the node where current leaves the resistor. When VALUE? is displayed enter the resistance in Ohms. The same is done when entering an inductor or capacitor where the value is entered in the resp. quantity. IS When IS NODES: FROM, TO? is displayed, 1) Enter the node where current enters the source, followed by a comma. 2) Enter the node where the current leaves the source. When AMPLITUDE is displayed, enter the amplitude in Amperes. When PHASE is displayed, enter the phase in degrees. 6.1 continued VCIS : Add a voltage controlled current source When CONTROLLING NODES: +, -? is displayed, 1) Enter the number of the positive controlling node followed by a comma. 2) Enter the number of the negative controlling node. When CONTROLLED NODES: FROM, TO? is displayed, 1) Enter the node where the current enters the controlled source followed by a comma. 2) Enter where the current leaves the controlled source. When gm is displayed, Enter the transconductance in Siemens. Del elem:To delete circuit elements when ELEMENT #? is displayed. Enter the element #, as it is numbered in the circuit descrip- tion (0 for none). 6.2 continued TABLE : Select tabular output quantities. PLOT : Select plotted output quantities. Note that both TABLE and PLOT clear any previous selected output quantity. dB : Default dB is on and all ratios are output in dB. FREQS : When MIN FREQ? is displayed, 1) Enter minimum or starting frequency in Herz When MAX FREQ? is displayed, 1) Enter the maximum or ending frequency in Herz When INC[(-) FOR LOG]? is displayed, 1) Enter an additive frequency increment OR 2) Enter the negative of a multiplicative frequency increment. 6.3 continue When output quantities are selected enter the number of the branch or node as defined by the circuit description. Note that branch power S is a com- plex number (S=V*I) and will be output in magnitude and phase format. If you wish to calculate ratio's (in most cases): 1) First select the numerator (e.g Node Voltage 2 in previous example). 2) Click next Ratio "/" (becomes shaded) 3) Select the denominator (e.g. Node Voltage 1 in previous example). If PLOT is selected ONLY 1 ratio or value can be selected at the time. If TABLE is selected up to 21 ratios or quantities can be selected. The SUPERIMPOSE function superimposes the next plot over the last plot (dashed line), using the next plot's scaling parameters. ------------------------------ End of Info-Atari16 Digest **************************(4to hiHo