DeForest Crosley 51 radio regeneration circuit part 1

[va3ngc]

I see that you have a Canadian radio. I have a DeForest-Crosley 52, which is identical (except for the name) to the Crosley 52.

[AllAmericanFiveRadio]

@va3ngc

Yes it is the same radio. Armstrong would not license DeForest in the U.S.

[1938Silvertone]

I've watched everything on youtube that I can find on old radio and you make the best and most detailed presentations of any I've seen!

[AllAmericanFiveRadio]

Thanks. These early old radios are the original electronic devices. And they are still very useful in learning basic electronics. Glad you like the videos and thank for the sub.

[XtalQRP]

A very nice little set! I've always wondered about getting/building and early valve set to go with the 'glowbug' collection here, and this has strentghened my resolve.

I have a 1927 PM3 triode, so a simple regen is probably the easiest route (and makes proper use of the valve instead of substituting a diode in a crystal style set). Then again, its not just the electrickery - its how it looks, and these early sets certainly have a distinctive style of their own.

Kind regards,

Robert/M6GLD

[AllAmericanFiveRadio]

That would be an interesting project and I hope everything works out. There are so many different types of radios and radio circuits it is amazing. That is what keeps it so fascinating. Thanks!

Best regards,

Rick

[Hammondlover2]

I've been contemplating getting one of these old regens, but have no experience in the older components. There's a 4 tube erla in craigslist, but all the tubes are missing.

[AllAmericanFiveRadio]

You would need to test all the transformers and coils first. The tubes are now worth more than most of the radios, unless the radio is very collectable. You would have better luck at a Ham Fest, maybe an antique store. I would not buy anything unseen, unless I knew the person selling it. And you would need to buy a battery eliminator too. Be careful.

[retrochad]

That's really amazing to hear that old radio play! These sets from this set were built so simply and with such good construction they still work well today.

[AllAmericanFiveRadio]

This radio would sound better with other speakers, but those speakers had not been manufactured in 1924, so that's why I used the Music Master Horn Speaker. The construction is solid and beautiful. It is surprising that the tube V1 is performing three jobs.

[vinylman86]

architecture of anything antique or old building looks creepy. great radio btw! cool hearing broadcast out of an antique set.

[AllAmericanFiveRadio]

You must have a lot of creepy thinks, lol. This radio was manufactured in 1924. This was the start of mass consumer electronics.

[vinylman86]

imagine going to an old building thatz still functional, but never updated even the funishing. now that was be too creepy!

[AllAmericanFiveRadio]

Yuck!!!!!!

[Ronbob59]

Amazing! What a beautiful radio. Great video, too! Thanks Rick...

Ron

[AllAmericanFiveRadio]

Thanks, Ron.

[radioam232]

One of the finest antique radios I have ever seen (beauty), and in perfect condition. I am very interested in the regenerative circuit. I have some old books on antique radio's and always wonder about the smart solutions of the radio pioneers. Does it work on 22 Volt anode voltage and is that enough to drive a loudspeaker?

[AllAmericanFiveRadio]

There are four batteries required for this radio. I forgot to mention in the video that I'm using 01A's for V1 and V2. So the 'A' battery is five volts. There are two 'B' batteries, the 22.5VDC supplies voltage to the V1 circuit (regenerative) and the 45VDC supplies voltage to the V2 circuit (loud speaker).

[AllAmericanFiveRadio]

The 'C' battery, 4.5VDC supplies the negative bias for the grid of V2. The outside top of the radio (only) was refinished by a professional wood antique restorer. They did a beautiful job. Thanks.

[dnl5649]

hey it is Daniel,

I got the 2 30 tubes from my friend Brent Jessee i now have 3 30 tubes all of them costs $16 that is quite expensive but they are tested and have a warrenty.

i need tube sockets and i need to make the damn coils and everything else plus a case and a 2 volt lead accululator

wow this is a very very simple radio but getting and making the parts is hard

[AllAmericanFiveRadio]

Hey Daniel,

That is great news! Your friend Brent Jessee has got some great stuff and a great website, Yep, tubes are getting expensive, be careful. Let me suggest that you build the coils and any other parts before building the box for it. And yes, making a project from scratch is much harder that building a kit. Start taking picture and send them a few at a time. I always take many more than what I use.

Rick