The title for this blog started back in the early 70's with an article in Audio magazine about an amplifier made by the Lirpa company. The frequency response of the amplifier was listed as "DC to Daylight". I am, by nature an analog geek, and i seem to collect lots of random bits of information on anything analog, quite literally from DC to Daylight. If i don't have it, i have probably seen it somewhere, and give me enough time and i can usually retrieve it. I have a few focused interests, such as audio amplifier design and RF design. So this blog will sometimes contain something random, but hopefully useful.