Index of /Radios & RF Circuitry/Misc Circuitry
Logged in as: Guest
guest id: 0
Bandwidth:0.000mb used 500.000mb left
Files:0 used 100 left
Limits reset:Jun 20 14:52 Login

Please help us keep the site running.
Inspire me

This isn't my website, it really belongs to the community.
Your opinion matters and is always given consideration.
(optional, leave empty to be anonymous)
Please don't use this to request a file

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
06-19-19 69151  50 Ohm Driver.pdf
06-19-19 221942  AM Modulation Monitor.pdf
06-19-19 205569  AM Monitoring Problems.pdf
06-19-19 1526204  ATV to UHF Converter - Lots of UHF & SMT Building Info in this.pdf
06-19-19 76566  Adjustable Signal Discriminator.pdf
06-19-19 886260  Assorted Rf
06-19-19 202030  Bias Supply for RF Power Amplifiers.pdf
06-19-19 409272  FM Interference Filter - Snooper Stopper.pdf
06-19-19 120243  How to Successfully Apply a DC Bias onto an RF Line.pdf
06-19-19 159956  Noise And Interference Filter For Short Wave Receivers.pdf
06-19-19 106452  Noise Blanker.pdf
06-19-19 105204  PSK Modulator.pdf
06-19-19 1016521  RF Coil Frequency Finder.pdf
06-19-19 770733  RF Generator for Testing Radios.pdf
06-19-19 138847  RF Mixer Amplifier.pdf
06-19-19 149601  RF Mixing with a Grid Dip Meter.pdf
06-19-19 33537  Radio Frequency Broadcasting Systems for the Hearing Impaired.pdf
06-19-19 764942  Rf Circuits.ZIP
06-19-19 148639  Rf Ics - Japanese - Typical.pdf
06-19-19 69278  Sample-Hold Synthesizer & SSB Adapter.pdf
06-19-19 349532  Short Wave Converter.pdf
06-19-19 93106  Simple AM Modulator.pdf
06-19-19 53598  Simple Squelch Circuit.pdf
06-19-19 423934  Single Chip Frequency Converter.pdf
06-19-19 156177  Super Marker Generator.pdf
06-19-19 944027  Tunable Discriminator.pdf
06-19-19 64627  Ultra Sharp Frequency Discriminator.pdf
06-19-19 883595  Understanding Mechanical Filters.pdf
06-19-19 836102  Using the NE602 RF Chip.pdf
06-19-19 158150  Wavemeter for Hams and CBers.pdf
06-19-19 1012798  Wind Your Own RF Matching-Isolation Transformer.mht

Note: if you use any type of downloader or download accelerator it may
more then double your file and bandwidth usage credits.

Indexer 1.1 by Mattsoft © 2004
Please report any problems to