Nice video. I am into electronic music but I remember building radios with my 200-in-1 Radio Shack Science Fair Archer kit back in the mid seventees. Brings back memories!
Ich habe eine Blaupunkt Patent Radiospule mit Umschalter,sehr kunstvoll.Aber schlecht,denn Detektorempfänger mit Spulenabgriffen sind verlustbehaftet,da offene Abgriffe hf mässig schwingen,offene Kabel enden.Eine einzelne Wabensteckspule ist eindeutig als Wabenspule gut,noch besser mit schwenkbarem Zweitspulenkoppler.❤😂🎉
Thank,many years I have windings Huth Honey comp coils with HF Wire in many colors vor nostalgic Crystal Sets in eBay,but The store time ist away,Im old and sick.
On the SW band the set tunes so broadly it was picking up everything at once. The CW signals were heterodyning with each other and with the AM signals.
@@michaelsimpson5417 True. I somewhat missed the fact that there's no need for BFO if you have so many strong signals few kHz away from each other. I remember ~20 years ago I saw an article in one electronics magazine on how to make simple SW radio. There was no tuning. It relayed on bad selectivity and changes in signal strength caused by ionosphere. Just sit and listen to the whole world at once. Interesting how the author took advantage of the disadvantages. I never tried it tho.
I build such thing with tubes in 60 ties with the same SW selectivity 😄but no matter - it worked with joy And the quality of sopranos is unparallel to modern wirh narrow filtering. Build also such on e with solid transistors just to have better source for recordiong Then build tube FM tuner and finally - yes, you wont believe, I purchased my first own radio with FM😊
LOL, I built many crystal sets in the late 50's. I fell asleep every night listening to Boston Blacky on WGN with my headsets on. Had no TV so found a lot to do.
Brilliant! I love the details and the commentary on the website link in the description. Pretty cool stuff. You took great effort to reproduce the look and feel of the original.
VERY COOL CRYSTAL RADIO . I BUILT ONE LIKE THIS AND. MADE SURE IT IS A GENUINE CRYSTAL RADIO THAT DOES NOT DEPEND ON ANY POWER . ONLY THE RADIO STATION SIGNAL IS THE SOURCE OF POWER AND A VERY HIGH IMPEDANCE EARPHONE TO DETECT THE VERY WEAK SIGNAL . SIMPLE MODIFICATION TO THIS SCHEMATIC . WORKS GREAT .
Very, very nice recreation of Elmer's original. They are very touchy about that MRL copyright. Good to see you again. BTW...still loving my KT135...thanks.
Hi Karl! I had my KT-135 out yesterday. Since I have a (temporary) outside antenna for the MRL No.10, I used it on the KT-135. During the day the shortwave bands were pretty much dead, but the signals came pouring in around 5PM.
@@michaelsimpson5417 Hi Mike! My KT135 is my daily driver. I'm curious, you mentioned in "The Analog Dial" that a 12AU7 will sub for the 12AT7. Have you ever tried it? I've been meaning to, but haven't gotten around to it. It's been suggested that the AU7 will provide smoother regen and improved MW performance. Best to you and Andrea, Karl ...Quick follow-up...Just checked the price for the 12AU7...ouch!!
@@Karl63601 Karl, somebody gave me over a dozen 12AU7s that came out of an organ. Some 12AX7s, too. Send me your address to mike@mikesyard.com and I'll send you some. I have a tube tester, so they'll be good. Each has a different gain. See this: jaazz.me/2019/01/04/12ax7-12at7-12au7-preamp-tubes-differences-explained/
At 1.55 there is Ukrainian broadcasting heard on background. Can someone help to find out what station this is? На 1.55 звучить Українською мовою станція. Хтось може допомогти визначити де вона знаходиться?
@@michaelsimpson5417 I believe I still have a catalog and lots of reprints from Paul from around 1994. Your site is excellent and from it, I found out about Carl Beier and ordered a kit from Lance in Texas. Then I built another from scratch. His design worked so well and out-performed many tapped, large diameter, heavy gauge wire and expensive radios I had built over a sixty-year period. Recently, I discovered 2" O.D. thin-wall PVC from a vacuum cleaner shop. The pipe is used in the wall of central vacuum systems It took me sixty years to find this perfect pipe. Much thinner than thin-wall PVC but rigid for coil work. Nice couplings to slide right over it for adjustable antenna coils. Thanks for responding, Michael.
@@romjone4801 The switch puts either a 2.2K, 4.7K or 10K ohm resistor across the input. This is needed for some regen sets, such as the MRL One Tube, but it also improves the sound of a crystal set. Technically, I should use one of those Bogen impedance matching transformers. The amplifier is an LM386 module I got as a kit from ebay. The other side of the amplifier is shown in this video at 4:04. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-a2qDJZMiTik.html
To expand a little, Elmer O. sold what he called Detail Prints, which were instructions to build many of his radios - using parts that he of course, sold. This radio is Detail Print 34. It is a link on the page that Michael posted.
