DKE 38 restoration p2o3

[@amberola1b]

As everybody else has said here Bob it's good to see you back we missed you. That sure is a finnicky little radio to adjust but I think that the charm of some of these simplified radios whether they be foreign or domestic. Anyway you got it working again. And yes, love the Bunny scissors

[@bandersentv]

Thanks. I hope to post videos more regularly. Next up some home improvement and back to TVs

[@thattubesound2214]

Awesome video, Bob! This radio fascinates me. I have more than 20 years in, restoring Volkswagens, and I'm fascinated by the products that the Germans produced in the 1930s to the 1950s. I am really looking forward to the rest of this project. BTW, that moment when you first got reception, and you were getting the oscillation reminded me of a scene in a favorite movie of mine. The movie is NEVER CRY WOLF, and the scene showed the main character trying to get a 1930s-vintage radio working in the cold of the Arctic. I'm glad that you've resumed this project! Cheers! Michael

[@bandersentv]

Hi and thanks. It is very different from the American radios of the same time period that's for sure. I added a link in the description to a good article explaining the principles of operation and construction. I'll have to check that movie out. Good luck with the Philco.

[@TechneMoira]

Nice find this radio, Bob :) This radio was also known as "Volksempfänger" (People's Receiver, - en.wikipedia.org/wiki/Volksempf%C3%A4nger) in the thirties. It was supposed to be a cheap radio, a bit in the same way the Volkswagen would be a cheap car accessible for the population at large. Many brands threw in their production chain into building these (Grundig, Loewe, Philips, Nordmende, etc.) Those built for the German market (after 1933) are often recognizable by the little swastika over the volume button. That moveable coil, isn't that a sort of fine-tuning feature to tune the local oscillator somewhat? It's very collectible and prices for these radios seem to rise steadily. Welcome back and thanks for sharing your video!

[@westburybear]

Absolutely fascinating. Thank you.......................and welcome back!

[@markodelac1528]

Great to see you back!

[@davidkilpatrick1640]

He's still alive! @3:22 had a chuckle at the bunny scissors :)

[@bandersentv]

I was hoping someone would notice ;)

[@OlegKostoglatov]

I think that the poster in the last video is probably correct about the set performing better at 220-240 volts. I noticed that on the schematics you showed that the big dropping resistor only drops the filament voltage, the B+ voltage comes straight off the power line with no dropper. This is rather unusual even for a European or British built transformerless set, on most both the filament voltage and the B+ came off of the radio side of a dropping resistor, so that either way the actual operating voltage of the circuitry was no more then 110-120 volts. That late 1940s Schaub radio that Zone1242 restored a while back was was one of the few exceptions, like this set it had a dropper for the tube heaters but not the B+. Probably the most logical way to obtain a 220 volt B+ voltage, or at least something closer to 220 volts, would be to build a full wave voltage doubler using silicon diodes, built onto a tube base that could plug into the original rectifier socket. But I doubt that most of the people who own one of these would use one for anything else other then collecting dust on a shelf. On that same note I can't figure out why anyone would bother with that lucite contraption employing the hard wired Soviet tubes, other then the fact that they were the equivalent of some surplus Luftwaffe tubes that people in post war Germany rigged up as a substitute for a VDF11, surely there are better options that have become available since that time? By the way, I found out that "Radione" was an Austrian radio manufacturer, so this set was obviously built during the war since Austria was annexed in 1938, as was Czechoslovakia where these sets were also built (even after the war but without the Nazi regalia).

[@pdppanelman5889]

Oh good you came back!

[@mrnmrn1]

Hi Bob! Some years ago you uploaded a video about a flying-spot-scanner-based test pattern generator. That was the first time I heard about this principle of scanning, and now it gave me an idea. I'd like to make a color FSS, just for fun - maybe some SSTV fun (solid state, not tube based FSS... but... why not... maybe partially tube based :-) ). Can you help me with the link of that video, I'm searching it for an hour with no luck. I find your 2011 workshop tour video, and I think I saw the mighty instrument: it is the hickok 615, isn't it? Not much info about it online... Thanks in advance!

[@bandersentv]

mrnmrn1 B&K 1077B Television Analyst. Google that and you should find more info

[@bandersentv]

Not sure how you intend to make a color FSS ? Rotating color wheel? Plus you'll need a CRT for the raster source so it can't be 100% solid state,

[@bandersentv]

Here's an attempt using color filters: www.labguysworld.com/Project_Color_FSS.htm

[@mrnmrn1]

Thanks a lot for the answer. Yes, I thought using color filters on the sensors. Wow. The stuff on the link you sent is quite complex on the optics. My attempt would be lens and prism free. It's not intended to be perfect, it's just a fun project. I meant solid state to the reception side: I'm not gonna use photo multipliers, but photodiodes/phototransistors with color filters on them, and the signal path would be completely solid state.

[@DanafoxyVixen]

It would be interesting to see what performance would be like using the radio on 220v. Great video

[@litzdog911]

Very cool! My grandparents in Germany had this radio! Did you happen to try using that "modern" replacement tube to see if the performance was any different?

[@bandersentv]

No. I'm wary of damaging the radio. That thing doesn't look very well made and using it requires adding a filament dropping resistor.

[@litzdog911]

Interesting. Clever concept, though. Bet it wasn't cheap.

[@Dutchamp]

At 10.14 in your video about the cap drp stands for Deutsche Reichs patent absolute German cap although the outside if this one isn't recapped and hide the new one inside the cap housing. Nice radio m8😊

[@herbertsusmann986]

I have some remnants of an old super-regen radio from the 20's (American) that is constructed in a similar way to this one. Spider web coils on shafts that you push together to increase coupling etc... Definitely cheap ruled the day back then as it does these days...

[@bandersentv]

Keep in mind that radio was still a new thing in the 20s. Super hets, local oscillators, mixers, IF stages, etc hadn't made it out of the lab yet. Moving coils was pretty much state of the art in the 20s. Not so when this was made in the late 30s.

[@OlegKostoglatov]

A lot of the circuits, components, and construction techniques used in radio during the 1920s had more to do with avoiding the purchase of patent licensing, or the payment of royalties, rather then cutting corners. RCA and Hazeltine Research had many of the good circuits sewn up, plus radio was in it's infancy, so there was a lot of experimentation that went on.

[@colintodd222]

Hi Bob, hope the new house is going well.

[@bandersentv]

Hi. Yes, it's coming along. I'll do some update videos soon.

[@morehouse90]

Do you still have the other chassis?

[@bandersentv]

No, I don't have anything from this project. This all belonged to a customer.

[@dennisperusse3837]

welcome back! :)

[@jim8230]

Interesting..I just saw this today. No previous alert for it or part 1 for that matter. KZbin is really slipping lately, more than usual.

[@agfamatic91]

the speaker looks right to me i don´t think they used horseshoe magnets on the DKE 38 model only on the older Volksempfangers at least my DKE 38´s speaker looks exactly like yours and it works fine. these DKE 38´s where also exported to sweden but because our electrical safety regulations in those days (probobly the strictest ones in europe) they had to be equiped with much more high quality double pole mains swithes so if you could find a way to mount a switch on the chassis you only need to enlage the original hole in the back slightly to make it fit.

[@fuzzwack1]

A fun little radio,I like it!!

[@BratvaTV]

Can you restore mine?

[@yoadrian24]

LOL. Japanese capacitors in a German radio. Radio is coming along good.

[@bandersentv]

Sure, why not - both members of the Axis powers ;)

[@antoniofernandez9554]

Hello, eliminate capacitor 30pF. Increase sentivitivi radio

[@umajunkcollector]

das AG2 ist sehr goot

[@СергейЦарицынский-щ2р]

Австрийская фирма Radione

[@Zeebee1971]

Elektrolyt capacitors are German: de.wikipedia.org/wiki/Elektrolyt de.wikipedia.org/wiki/Elektrolytkondensator en.wiktionary.org/wiki/Elektrolyt