Latest News
6/6/2013 - Our webhost will be doing a server upgrade Sunday (UK) beginning between 0300 and 0600 BST and we will be inaccessible for up to 5 hours. Apologies for the inconvenience.
5/23/2013 - Fixed the bad link for NJ7P tube data.
8/17/2012 - DIY Audiofest 2012 - A blog of our Audiofest trip to Victoria, BC.
8/17/2012 - We will be at the Victoria Audiofest on August 25! We'll create a blog page with pics upon our return on the 28th.
7/24/2012 - Saturday 28, July 2012 midnight UTC/GMT, there will be a few hours downtime as my webhost does security upgrades. Sorry for the inconvenience.
7/1/2012 - Happy Canada Day, eh?
6/5/2012 - Our website has been experiencing network difficulties. This unfortunately is 100% out of our or our webhosts control.
12/31/2011 - Adding Monitor Service to a Realistic Portavision. (Article)
10/9/2011 - Transformer Data for Duncan Amps PSUD. (Article)
10/4/2011 - Apologies for the delays in updating our LotM - we moved QTH and we just got back online.
7/9/2011 - Constant Current Source and Protection for Directly Heated Tubes. (Article)
4/26/2011 - Modifying the Local Hero driver board by Norman Koren. (Article)
4/11/2011 - Our popular Winding Your Own Transformers article is back! (Article)
4/9/2011 - Explore the menu to see what's all here!
- Links page updated. Have a link you think should be there? Contact me and let me know.
- Come take a look around the forums as well. Lots of data and information gathered over the years.
4/7/2011 - Welcome to our new host!
3/19/2011 - Added a Tools section for JS calculators. I'll add to it over time.
Current Space Weather
Link of the Month: NJ7P Tube Info (new URL)