kbyrne

If I have the origional folder called TEX on my desktop and open it and place DOSBox into it will that suffice or does the folder have to be installed in C:/ drive to work properly. That is my problem as someone inexperienced I don't have the knoledge therfore the confidence that I am doing it the right way from the beginning.

Thankyou for the post. I am busy for the moment but will print your reply and study it carefully. I am new but accept critism well enough. Tanks

Becuase I am new to this. How to do this the right way? That is why I post. Not due to my being a person who is a know it all type. How would you show a student the right way? Thanks for the post thou, I do not get mad at anything. I need all the help I can get.

AS a newbi to electronics I have a simulation question. Am I correct that total amps can be measured in attached circuit accurately? Schematic called for 2 Amps but did not include RC circuit addition for hum problem. Transistors used were ProtoLab ideal as the program is limited in choices. Ideal or 2N2907 ect.

I now have a shortcut to DOSBox0.7... on my computer screen. I am operateing Windows XP Professional 32 system. Could you please describe in detail how to link the program together properly as I am new to that type of program. I only have done complete programs and need to learn. Thankyou.

Does anyone know these two programs as to which is better? I need transistors single supply and op-amps all pass type for audio circuits mainly.

http://www.electronics-lab.com/downloads/schematic/001/index.html It is the first software called Electronic Circuit Designer, file dowloads as Tex.zip. Download goes ok and unzipping it works but link error message between to parts of it produces a error message. Can anybody advise me in fileing in C drive so it opens up fully linked together as I view this as to why it does not fully work. My fault as I am barely proficcent in computers.

From a newbi to this post there is a freeware and paid program called FilterWiz. It has what is mentioned here plus all opamp choices ect with necessary parameters.

I downloaded tex off your site and opened it and nee a question answered. A error message that says A temporary file used fo intialzation could not be created or could not be written to, make sure the didectory path exists. I opperate on windows XP Professional 32 bit. How do I accomplish this to get this freeware program to work?

I am a newbi to all of this but you might want to try a free thirty day periiod of Tina. It ha schematic capture, parts lists, the asbility to do spice things and copperclad board in one complete program. If you can not find the download site give me a message and I will guide you there. There are pro versions, technician versions and student - teacher ect.

I need assistance with a dot matrix type board display marked as follows. LTAABO1M 101THAILAND. I need to figure out the legs of it to find a way to turn a 10 X 12 into a 10 X 10 for a Audio Logic Analizer.

Can this transformer act like a normal transformer without all of those parts for the VCR? I have two and need to be sure to build two power supplys. One will be a LM350 Adjustable used at 12VDC @ 2-3Amps. The other will be a dual rail 12VDC @ 1.5Amp each. Where can I search for a parts list for this devise at also?

Just a final note from the author: I redid the board with a 8 leg IC Part # ua741 and project is complete. The board was redone in Eagle only one sided instead of origional two sided type. It worked the first time out. Thanks for assistance to all.

>:(I have a question I need assistance with conserning enclosed gif 1. The four parts surrounding the rectifier what are they and what is their function in this schematic. I am confused they look like resistors but are marked like a capacitor. 2. The two inductors Without a meter how can I figure out their value? What is their function also?

;D Tanks again I have the data althou I can not find a l165h part source yet. Any ideas about thermistors and a Icl7107. the gage goes down with a 1k thermistor and a 100ohm ntc thermistor and is supposed to go up instead. by. see ya.

http://www.electronics-lab.com/forum/index.php?action=post;board=14.0 Need assistance Findig out where to go fo two items: 1. Owners Manual for a EMCO Power Supply Model:PSV-5 2. Service Manual for Same. 3. Service Manual and schematic needed for A NEC Reserve 2 Model A-7E Amplifier. Where to go for this type of thing is what this newbi needs. thanks

http://www.electronics-lab.com/forum/index.php?action=post;board=13.0 Newbi needs assistance with a DC-DC Converter kit that is defective in the required IC calls for a CD4001 with 14 pins and the board has only 8 pins. I desire to redo the board as it is deffective but do not have a schematic to work with only a parts list and a two sided board. What to do next. Any help would be appreciated.

GO to ebay my son and type in ic's and processors and electronic components and surf away and you will find them. http://www.electronics-lab.com/forum/index.php?action=post;topic=20948.0;num_replies=1 They are associated with Hong Kong. I do and it works out ok.

Where does someone go without info about equipment bought used lab type with no manuel ? 1 Power supply bought used 30vdc @ 5a. 2 I have to donate to any one who needs on a Tektronicx model # 7854 on my adobe if any body needs a 90.00 manual for free plus the posibilities of oter tecktronix manuals web site # but dont know where to post. http://www.electronics-lab.com/forum/index.php?action=post;board=17.0

I need assistance with two transistors and info if data sheets are available. 1. MJE3055 Data sheet and MJE3055T Data sheet to see if they are interchangeable. 2. MJE2955 Data sheet and MJE2955T Data sheet to see if they are interchangeable. One other part a IC 1. L165 DATA sheet and L165H Data sheet to see if they are interchangeable. tanks kbyrne

go to http;/users.otenet for a 65watt class A amplifier and search for link to Sams Electronics Web site ass agood site if you enjoy web site in Australia.

Can any body help a newbi to electronics with a clarification. I researched a part # IRF9540 with Digi key and got the result of manufacture part # IRF9540NPBF. how do tellif it will work as i have the sme problem with other transistors pluss TL084 OPAMPS. The letters at the und make me unsure weather to buy them or not and search for exact numbers.

To your question what does the MK50250N do In the book Integrated Circuit Projects By Carl J. Bergquist there is a circuit for a alarm clock with all parts plus a speaker. The part in question does most of the work and drives a hex driver plus two quad segement drivers which drives the 7 segement dislay. Any ideas as to where to purchase or where to post the quere is appreciated plus data sheet. tanks kbyrne

;D kbyrne the MK5025ON is a ic the rest of the parts are transistors and I have a hard time with BC & BD numbers as to finding them except a NTE replacement number. My question is an a strictly Class A Amplifier will a NTE brand transistor work out for a BD transistor or a BC transistor as long as the legs are accounted for.

New to electronics hobbiest needs help finding obsolete parts as my supliers cannot handle some parts. parts needed are in small quanties only. 1. MN3001 @ 2 pieces. 2. MK5025ON @ 1 piece. 3. BC184L @ 6 pieces 4. BC214L These parts are just a start as there are others for projects. tanks MODERATOR EDIT: Don't post you email, it defeats the object of the forum and only attracts spam.