The Radio Shack

I need the article on Walsh functions and orthogonality from electronics and wireless world March 1987.

It is on one site on the internet but they blocked the country I am in.

If someone could pass it along or if they have a physical copy a couple of photos with a phone would be great.

Tried a post here a week ago but post still not visable.

Ex TRB contributer "golfguru" saying Hi.

It is sad news that WTWW has gone off the air. I just recently got back into radio as a hobby, and loved listening to WTWW rock and roll every night, on a 2 transistor regen radio. There really isn't much else out there like it. Seems the cost of running a 100,000 watt station was too much. Something like $15,000 a month, with little profit. it reminded me so much of growing up, and listening to WABC Cousin Bruce on AM. It will be sorely missed.

Here is a well known Youtuber talking about the station. https://www.youtube.com/watch?v=C-Veo-A0dpQ

This is a recovered file. The images in this post may be out of order, and there may be duplicates.

Varactor-tuned, hybrid-feedback, low-voltage BJT regen Post by qrp-gaijin » Mon Oct 14, 2013 I've successfully built a low-voltage, varactor-tuned, hybrid-feedback Vackar-Hartley regenerative detector/oscillator and have gathered some data on the frequency-dependence of the threshold oscillation level. For those not familiar with the topic, please see the following documents (by TheRadioBoard member vladn) for background reading: viewtopic.php?f=3&t=3714 and http://www.kearman.com/vladn/hybrid_feedback.pdf The basic idea is that the threshold oscillation level can be equalized over the oscillator tuning range, a procedure referred to below as "balancing the tilt". One goal of mine from the start was to attempt to apply the hybrid feedback approach to a varactor-tuned oscillator. My initial attempts were rather ambitious and failed due to my lack of experience with the hybrid feedback adjustment method and with varactor-tuned oscillators. …