Index of /Communications/Circuits
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This isn't my website, it really belongs to the community.
Your opinion matters and is always given consideration.
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Still online, we are. The code for this website is getting old, but still works well as far as I've seen. I may update it with new code and new features eventually, one day when I have both free time and focus. Until then, the content is still useful, I'm keeping it online. Comments and donations are welcome, but include your email address if you want a reply.

Ideas for the future of the site -
Here are some ideas I've been brainstorming. I don't think to much of the site should change, because it has been successful all these years with very little change. still nearly 1000 visitors a day to the site!
  • donations - I think it might be time to make some changes to the donations. I would rather see people get a lifetime membership and not have to worry about an expire date. here's an idea, a smaller recurring payment monthly, or 4 times a year, then maybe offer a second option, donate enough to cover the cost of the server for one month and you'll get a lifetime membership that never expires.
  • automated account creation - the membership process should be automated. I rarely hear a complaint about anything, but I don't think people feel so safe emailing me a username and password to set up an account. I think people may feel more safe dealing with an automated system. make a donation, then type your account into right in to the computer and have it set up on the spot.
  • members only forum - the site doesn't seem to need a full forum, but it could still benefit from a single simple board or mailing list, maybe. still optional, but maybe only available to members. non-members wouldn't be able to post on or see the forum. for those who donate to openly communicate.
You can send me your comments in the form above. I'm not putting any work into these changes without getting feedback from you!
If we have any web developers out there, we'd love your help! come on, my birthday's tomorrow!

Better forum? -
We are currently using vbulletin, but maybe there's a simpler alternative that would better fit the site. What do you think of this one? Please let us know what you think, keep vBulletin, or switch to SEO. Comment box is below.

ideas or comments?
please send us your comments or suggestions or any ideas you might have for the site. this is the easiest way for you to let us know what you think. just type in the box above and send.

Thank you, everyone who has helped support the site over the years. you've done your part, now help me do my part to improve the site with your input.

tips to download -
right click on the file you want and save target as/save link as. this will help prevent the system from double counting the bandwidth.
The bandwidth reset time is now set to 20 hours instead of a week. We hope this helps you get what you need without causing any problems with the site.

new server -
this week, we've moved the website to a bigger faster server. we have doubled the weekly download limit to 20mb and are now allowing hot-linking, so more people can get the documents they're looking for. this new server is still relatively low cost, but is a bit more to pay for each month then the last server. we still need your donations to help with this. thank you all who have supported the site and community!!!

upload files - If you have files you'd like to add to the site, we'd love to add them. Please don't upload anything illegal, harmful, or copyrighted. We will do our best to screen the files and put them online.

<-- Old News -->

[To Parent Directory]

Last Accessed Size  File
09-15-19 888308  A Digital Delay System for Communications.pdf
09-15-19 79416  Add a Distinctive Ring to your Phone.pdf
09-15-19 629067  Audio Scrambling System.pdf
09-15-19 1952844  Call Director.pdf
09-15-19 553436  Caller ID Tech Info.pdf
09-15-19 239216  Cordless Phone Supposed Hazards.pdf
09-15-19 3063631  DTMF to PC Interface.pdf
09-15-19 562117  Does Bluetooth Have Sufficient Fidelity.pdf
09-15-19 231088  Electronic Ringer for Telephone Lines.pdf
09-15-19 322781  Electronic Telephone Ringer.pdf
09-15-19 456571  Get Power from a Telephone Line Without Disturbing It.pdf
09-15-19 831600  Inside The Telephone.pdf
09-15-19 17325  Losses In Early Telephone Lines.PDF
09-15-19 82280  Music On Hold Adapter Errata.pdf
09-15-19 83803  Optically Coupled Phone Ringer.pdf
09-15-19 87220  Opto Isolator Circuit Shows Phone Line Status.pdf
09-15-19 5266  Phone Hold with Music.gif
09-15-19 216017  Phone Line Monitor.pdf
09-15-19 202046  Phone Line Sentinel.pdf
09-15-19 780211  Phone Sentry.pdf
09-15-19 6738  Phone Status Indicator.gif
09-15-19 43343  Phone Status Indicator.jpg
09-15-19 10174  Phone Status Light.pdf
09-15-19 58062  Remote Telephone Ringer.pdf
09-15-19 48794  Ringing Phone Light Flash.pdf
09-15-19 4147493  Single Chip Messaging System.pdf
09-15-19 660205  Speech Scrambler.pdf
09-15-19 455339  Telco In A Box.pdf
09-15-19 128100  Telephone Bell Extender.pdf
09-15-19 50894  Telephone Call Recording Adapter.pdf
09-15-19 1035657  Telephone Call Restrictor.pdf
09-15-19 13855  Telephone In Use Monitor Errata.pdf
09-15-19 2964286  Telephone Line Controller.pdf
09-15-19 714565  Telephone Line Grabber.pdf
09-15-19 52202  Telephone Line Interface.pdf
09-15-19 1561224  Telephone Line Simulator.pdf
09-15-19 310246  Telephone Line Tester.pdf
09-15-19 252366  Telephone Record-Play Accesory.pdf
09-15-19 90820  Telephone Ring Detector.pdf
09-15-19 5281004  Telephone Scrambler.pdf
09-15-19 229722  Telephone Status Monitor.pdf
09-15-19 40990  Telephone-Related Ascii Schematics.pdf
09-15-19 256615  The Life of a Phone Hacker.pdf
09-15-19 1269200  The Party Line Phone Line Simulator.pdf
09-15-19 578209  The Phone Sentry.pdf
09-15-19 1840601  Ultrasonic Communications.pdf
09-15-19 962860  Use Your Telephones as a Home Intercom System.pdf

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