To learn electronics in a very different and effective way, and gain access to Mr Carlson's personal designs and inventions, visit the Mr Carlson's Lab Patreon page here: www.patreon.com/MrCarlsonsLab

@Daveyk021

2 жыл бұрын

Don't know what it is, but it's now $1K+ on EBAY

@greggaieck4808

2 жыл бұрын

Mr Carlson the Mystery Box is cool

@tc539

2 жыл бұрын

its to turn on and off olllllld xmas lights

As a kid I used to love building stuff like this for my mate who ran a school disco. Only big clubs had professionally made light shows, and they weren't much better than this. Sound-to-light was the next addition to the device, so that the lights flashed different colours to the beat. In the seventies, different coloured flashing lights were the height of sophistication that were far-out, rock-solid and groovy!

@stevebeal73

2 жыл бұрын

me too - see my separate comment made just now

I love the way you have of talking to viewers without appearing to talk down to them. Not many KZreadrs have that extraordinary gift.

If Mr. Carlson ever got tired of doing what he is doing, he could always make a good easy-listening jazz DJ.

@jamesplotkin4674

2 жыл бұрын

Calming voice of NPR.

@andreasu.3546

2 жыл бұрын

@@jamesplotkin4674 The Bob Ross of electronics.

Mr C that looks like something my father would bog together lol! A farm boy from Kentucky, with a 4th grade education loved electronics! I still have all his Heathkit projects! This apple didn't fall from that tree

@JamesHalfHorse

2 жыл бұрын

8th grade education and I am an engineer for a radio station... and a farmer. These days you have to know some electronics even for farm work.

Someone put this all together with purpose, dedication and love. Irony, being, today all that could be in a cheap 50-cent chip -- but where would the fun be in that? 🤗 It's _definitely_ 70's as the components are all familiar to stuff I was building as a kid way back then.

@gwesco

2 жыл бұрын

The device I built was a character generator, think early Chyron, and control a bunch of VCR's to automate a cable TV channel. The whole thing could be done now with a Raspberry Pi and some python code.

@greggaieck4808

2 жыл бұрын

Mr Carlsson the Mystery Box is cool

@jamesplotkin4674

2 жыл бұрын

I can imagine a young genius Japanese boy tinkering and creating devices. He'd be in his early 60's by now.

@joefish6091

2 жыл бұрын

CD4017 ie the decade counter IC that was used for knightrider units.

@gsansoucie

2 жыл бұрын

Ditto on the date, these are the same components I used in the 70’s and into the 80’s as well. Making stuff that didn’t really do much, but certainly got me interested in electronics and logic circuits in general.

I just love that silent pause at the start of every video followed by arguably some of the best voice audio on KZread.

interesting that a Mr. Carlson equivalent of forty years ago built this and the irony that the Mr Carlson of today got his hands on this piece of electronic folk art to keep it not only alive but to propel it into the future for again another Mr Carlson to discover this novelty someday. I wouldn't be surprised that this build came from a past electronic magazine article.

Right on Mr. Carlson's Lab, the white paper is a short circuit protector. Well stated.

This is... analog electronic archeology. Not many to better host such. Top notch, as always.

@11:10 its a shift register! It feeds into the first register to keep the cycle going. And the button introduces a binary 1 at the first register when it's pressed at the right moment, which continues to cycle. When keeping the button pressed all registers are 1 so no more flashing. Cool old device

@Steve_Just_Steve

2 жыл бұрын

What do you think it was used for?

@madmodders

2 жыл бұрын

Yes! I was screaming "shift register" at the screen as soon as I saw a second light. lol

@jamesplotkin4674

2 жыл бұрын

@@Steve_Just_Steve Something which plugs into it, such as strings of Christmas tree lights to blink randomly.

@NeverSuspects

2 жыл бұрын

@@Steve_Just_Steve One of those Japanese game show count down stage effects during sudden death or maybe just some flashing window lighting for one of those casino/gaming parlors in japan. Or in Vegas it was triggering 3 neon words that say girls then a neon light shape in the figure of a stripper.

@alexanderkupke920

2 жыл бұрын

@@madmodders Ah yes, for whatever reason with shift register I had some of the later components in mind when I did assembler at university about 17 years ago. with each push of the button it just adds one "bit". Or speaking of the Event and stage lighting I did at a side job for a while, you switched from a 1 light, to a two light, three light sequence. when all four are active unlike actual lighting controllers (well, nowadays that would almost be ancient ones with only four channels and only sequencing) it just does not reset again. (unless you cycle the device)

Looks like a “portable “ disco lights random switching home brew box . I did something similar back in the late 70’s

@CaptainRon1913

2 жыл бұрын

Whether you're a brother Or whether you're a mother, You're stayin' alive, stayin' alive. Feel the city breakin' And everybody shakin', And we're stayin' alive, stayin' alive. Ah, ha, ha, ha, stayin' alive, stayin' alive. Ah, ha, ha, ha, stayin' alive.

@DJEonT1

2 жыл бұрын

My first thought was that it was a disco light controller. I suppose technically it would still do that, as long as its not overloaded.

@dadawoodslife

2 жыл бұрын

Me too, I was fabricobbling a number of disco light devices around the time I left school, late 1970s. First thought was a 4 channel sound-to-light until he opened the back and I couldn't see an audio input jack.

@andreasu.3546

2 жыл бұрын

@@DJEonT1 Some kid took this to parties on Friday night. Together with a turntable and a pair of speakers.

@xnavynuc

2 жыл бұрын

@@dadawoodslife I did the same thing! Those sound-activated lights were new and cool back then!

As someone with not a real electrical engineering background(Mechanical engineer though) your videos are just so enjoyable and really easy to watch. The way you can just describe how something works and creating an image in my brain it's simply amazing. Btw has anyone told you that you have just about the best audio on youtube ?

@MrCarlsonsLab

2 жыл бұрын

Thanks for your kind comment!

That reminds me on the 70's. Everybody was building what we called a "light organ* for disco parties. The lamps reacted to different frequency ranges of the music. Was very popular back then.

@drussell_

2 жыл бұрын

It's not a color organ, it looks like it's just a chaser.

@richlaue

2 жыл бұрын

I made a light organ that used a tube amplifier to drive it.

@LutzSchafer

2 жыл бұрын

@@richlaue oh wow. In my time thyristors where evailable already even in east Germany

@kenschmidt6522

2 жыл бұрын

Yes. My older brother built one of discrete components.

It looks like that was put together with whatever the person had laying around their workshop, possibly salvaged components, maybe even some from the radio that used to occupy that case. Very cool. I love seeing kind of ingenious homebrew stuff like that. He may have gotten the circuit design for it out of one of those paperback electronics project books that used to be around, like "101 Useful Circuits", or an electronics magazine of the 70s.

@jmaxx7649

2 жыл бұрын

I loved those mags ,good memorys

Great to see you post again! They canceled school today so I get to do this instead, which is great! Excited to watch the rest of the video, as I’m only in the beginning.

@Steve_Just_Steve

2 жыл бұрын

When did he stop posting?

@thomashowe855

2 жыл бұрын

@Google user right on!

A lot of effort went into that project. It's a nice example of somebody's passion for the hobby. LOL, usually my early projects got abandoned half way through or are slapped together a lot quicker than that one was.

As a retired Broadcast Engineer, I remember my mentor had contracts to maintain numerous radio stations. He had a half dozen radio tuners set up to monitor them. Mute circuits were added that were tripped off whenever station carrier was lost. This looks like a somewhat similar idea that scanned the stations, turning off and on individual stations. loss of audio would trip the mute circuit off and tell him that one of his stations had a problem. Maybe?

May have been used for advertising (hotel, bar, car dealer, etc.), but almost perfectly matches the kind of sequencer used for DJ lighting cans. The various patterns and ability to change them really convinces me that this powered a set of DJ lights.

Very interesting Paul. That case reminds me of the old RCA RWM series of Am/FM radios from the early 70's. Thanks for sharing.

@MrCarlsonsLab

2 жыл бұрын

Thanks for stopping by Buddy!

Nothing like a "homebrew" electronic piece of equipment to explore !!

Thanks for another unique and interesting video. I always learn something from you and your videos. I love how exciting you get when diving into unknown projects and figuring them out.

Love it Mr Carlson! i like the format.

Great video. Just a quick note: Many 220volt countries are also 50Hz instead of 60Hz. From personal experience, a transformer run at a Hz that it was not designed for can overheat. Replacing the existing transformer with a 110v 60Hz might be the simplest/safest fix.

This guy is why , among other things, became a Mechanical Engineer. The other things were trying to how a 1950s TV worked, B&W, 2 chassis, 8 miles of wire, the second was trying to read a ARRL manual at 10 years old.

It's borderline a piece of folk art. I can picture someone building it for a friend who is working as a dj. People and friends together partying and having a great time. You're going to have to get it out next Christmas...

@greendryerlint

2 жыл бұрын

I'd probably add fuses on both sides of that transformer and for each outlet. Based on the cord thickness and the wiring to those outlets I don't think I'd want to operate very high wattage lamps from it.

@robert574

2 жыл бұрын

@@greendryerlint I think the fuses are a good idea to protect the weakest part. Make sure you don't clean it too much either it needs some original patina.

I remember in the early to mid 80's there were many magazins for those of us who are into (like yourdelf) building and learning about electronics. the Light sequencer (Johnson counter) was fun.

For my flux bottles I use blunt-tipped "glue" needles...they came with plastic covers that not only protect me from accidents but also helps keep the flux from drying out.

@kareno8634

2 жыл бұрын

Would Eye Drops bottle work?

@gregorythomas333

2 жыл бұрын

@@kareno8634 I'm not really sure...couldn't hurt to try it though :)

@kareno8634

2 жыл бұрын

​@@gregorythomas333 Thanks. haven't used needle[d] bottle - tho - may be 'lack skill' [?] with lid 'Spouts', either break or never seal well (cleaned). - not a glue connoisseur. lol

@mrbyamile6973

2 жыл бұрын

@@kareno8634 just don't make the mistake of putting flux in your eye, I cringe at the thought. Eye dropper not as precise as the metal blunt needle tip. I have an old syringe from the local feed store that sells health care stuff for farm critters. Just filed off the sharp point.

That Fluke remote display was really tripping me out, never seen that before! I was so confused. "Is that meter cut in half?" "Did he greenscreen/cgi that in there?"

Love the hand-wound reed isolation relays, they have a satisfying click to them, I could imagine a home-brew relay computer being built from them, nice and compact.

Plugging that in....you are a brave soul

Always nice hearing from you, thanks Mr Carlson! You have imbued a passion for repair and electronics and I have no words to express my graditude :)

@MrCarlsonsLab

2 жыл бұрын

Thank You for your very kind comment Gustavo!

Don't think it was built in Japan. Most of Japan uses 103V 50Hz for basic home service and only reserves 200V for high power appliances. This looks like some of the Popular Electronics projects I used to build in the 1970s. Mine were a little neater, I dare say, but this one has the advantage of still working while all of mine have gone the way of the dodo or been stripped for parts several times over.

@danmenes3143

2 жыл бұрын

I was puzzled by the voltage issue. But I don't know another country that uses 200V for anything, plus that certainly appeared to be Japanese or Chinese writing on the card. Add in the use of Japanese transistors. Where do you think it comes from?

@russellhltn1396

2 жыл бұрын

I was going to say the same. Right plug, but I think they're all 100V, but a mix of 50 and 60Hz. Europe does a lot of 220 for regular outlets.

@russellhltn1396

2 жыл бұрын

I did some hunting. There are countries with that style plug that do 220V, but they'd be a bit unusual for showing up here. Places like China, Philippines, Thailand, Vietnam being the bigger ones.

@danmenes3143

2 жыл бұрын

@@russellhltn1396 China is supposed to be 220V, not 200V, but maybe they figured "close enough." Someone in China with a handful of Japanese components? Neither the Phillipines, Thailand, nor Vietnam write with Chinese characters, as far as I know, although one might not be that surprised to find some Chinese written materials in any of those places.

@danmenes3143

2 жыл бұрын

Still, my best guess is Japan, built for some special spot where there happened to be 200 or 220V available. Maybe in an industrial setting of some kind. Or military, which might explain how it got to North America.

I’ve never thought using reed relays that way. That pretty ingenious

@joefish6091

2 жыл бұрын

They are available built that way, in a small plastic case encapsulated in resin, also screened metal case versions used in audio and telecoms.

About 3 minutes in when it appeared there was a radio in it, I thought it was a 4 channel color organ that was tuned to a set frequency. In the mid 70s they were very popular, and the parts would have been very similar.

@russellhltn1396

2 жыл бұрын

Color organ was my first thought as well.

@yngveamundsen5184

2 жыл бұрын

Great minds think alike! I built a few of these color organs when I was a kid. One popular model in Scandinavia from came from Josty Kit, a Danish electronics company. But instead of (reed) relays those constructions used diacs and mains voltage (220V) all over the place. Caused a few blown fuses and traces, sparks and shocks before we got the hang of being careful and do proper soldering joints. Those were the days! :)

It probably has the radio dial to get it through customs inspection as a radio while it was used as an explosion sequencer for taking down structures. Pure sinister conjecture. :)

@TradieTrev

2 жыл бұрын

ROFL!!!

@jmaxx7649

2 жыл бұрын

Uhh dont give anybody ideas haaaahaaa

@devilsatan2973

2 жыл бұрын

It does look that way. That's why you would use an old radio dial too! The customs folks wouldn't know the difference. Now if it was used to take down buildings I can't say.

@sometimesleela5947

Жыл бұрын

I would hate to be using that as an explosion seq. and accidently get it near anything with a magnet. Those reeds also triggered on being bumped, banged, or even loud low freq. sound. Come to think of it, they're the perfect tamper detector for IEDs.

@15:12 The beheaded Fluke DVM appears and continues to haunt your bench again!

Mr. Carlson, you Sir, are wonderful. -- a bit of Mr. Rodgers, only with a lot more oscilloscopes.

My first thought was some kind of "light organ controller". Then a few minutes later thought "thought it was some kind of light sequencer." My second thought was correct!!

Looks like a Popular Electronics Project.

Fun little project. Oh, Paul, I just noticed that, a few weeks ago, you added electrical arcing to your closing graphic, essentially making the letters look like little Tesla coils. Nice addition!

I was originally thinking it was a color organ with built in radio to flash the lights with the music.

Love it another mystery solved! Now we know what electronic Xperts do for fun...

That thing hooked up to four lamps, would be the stuff of nightmares

Mr. C this my ham friend was a crazy kooky and very interesting video.Looks like something we would find in a swap meet tote. Thank you for bringing it back to life and sharing with us!

That was fun to watch. Great work!

@MrCarlsonsLab

2 жыл бұрын

Thank you!

Electromagnetic controlled light chaser. An older project from 1978. I saw this project in an old electronics magazine. The builder of this one put it in the old radio case, because it is most likely the only enclosure he/she had at the time.

@thomasmoore8142

2 жыл бұрын

Yeah, I think you are correct. I believe it was in a "Popular Electronics" but I don't feel like pulling out my collection to make sure.

@rickmartin6817

2 жыл бұрын

Yeah. As a kid, I built pirate radio stations with audio mixers built inside cigar boxes and baby-wipe containers. The baby-wipe mixer worked best, but I didn't like the soapy smell when I was on the air.

This reminds me of a project I built many decades ago, based on a design in an electronics hobbyist magazine here in the UK. There was a box with 4 triac driven mains voltage outlets. You would plug coloured mains (240 volt) lamps into these outlets eg red lamps into outlet 1, green into outlet 2, etc. There was an electret microphone mounted just inside of the box. This was connected to an audio preamplifier and then to 4 audio filters that would sample different ranges of audio tones eg sub-bass, bass, mid range and top audio range. The outputs from these filters were amplified and fed to the triacs. The purpose of this was to produce coloured disco lights that flashed in time to the beat and audio frequencies of the music. It worked perfectly but was untidy. I got rid of it after my children moved on to other interests.

Love your videos! Excellent explanations and very enjoyable content.

@MrCarlsonsLab

2 жыл бұрын

Glad you like them!

I can smell the vintage Vero board from here. 😂

I 100% could use such a device for a christmas display idea I have for next year. I have enough old stuff around I could make it discrete, as opposed to a simple IC.

I like it!! A work of art. Labor of love. Color Organ? Japan is 100V 50Hz in some areas, 60Hz in others. Now, other Asian countries do run 200V.

@solarbirdyz

2 жыл бұрын

If it's not 70s, but 60s - psychedelia and not disco - it could've been Vietnam. But Canada, of course, wasn't in Vietnam, so if this has been in Canada the whole time, it seems unlikely. It could also be the 70s and somebody doing duty with NATO in western Europe.

Apparently I _have_ been watching enough of your videos, Mr. C! After seeing the back off, my first guess was a light sequencer, probably for (indoor!) Christmas lights. First time I guessed correctly on one of your mystery videos! 😁👍️

I was hoping it would be one of the 'light organ' circuits that were in all the DIY magazines in the late 60s... Light sequencer is cool though..

@MrCarlsonsLab

2 жыл бұрын

When I picked that out of the box, my first thought was a light organ as well.

One wonders how a homemade Japanese Christmas light/Disco flasher made it to Canada... There must be an interesting story.

@stevenverhaegen8729

2 жыл бұрын

Military stationed in Japan?

@RetroCaptain

2 жыл бұрын

A lot of people emigrated to Canada (specifically BC) from Japan. Buddy brought the device with him. Probably part of a Kareoke set up or business sign

Fearless! I have worked in the field and yet you teach me something with every new vid. I was so proud of myself for recognizing the hand wound reed relays before you explained them. I think Forrest M. Mims III explains them somewhere. Cute easy to follow circuit if you understand the hand fabrication.

Great video...cheers.

What a labor of love...Triacs without heatsinks and probably hot tabs.

Thank you for filming this unique device, if you ever work on this further, I would be interested to see if one could translate the writing on that piece of paper wired to the board (less it might damage something). Love your videos!

I was instantly reminded of a three-channel color organ box that I bought from Edmund scientific in the 70s The sound will be divided into frequencies and then channel to separate colored lights...

The band Rainbow in the mid 70s had a massive, well, rainbow that spanned their stage. Stories say the control box was stupidly simple, and I like to think something like this might have powered it. It used to interfere with the amps, and was massive and hard to lug around. Apparently they were travelling by ship at some point and decided to just turf the dang thing into the sea, and were pretty happy to get rid of it.

@noelwalterso2

2 жыл бұрын

I remember seeing that at Leicester De Montfort Hall in 1976

@DaedalusRaistlin

2 жыл бұрын

@@noelwalterso2 That's awesome, I only have a DVD of the '77 performance, as I did not exist at the time :)

@filanfyretracker

2 жыл бұрын

I suspect a lot of stage lighting for music was extremely crude stuff like this box as its driver back in that era, just because it was still an early time in electronic light sequencing. After all the computer controlled multiple kilowatts of lighting we have today had to start somewhere. I wouldnt be shocked if a of the firms that build lighting shows now started as a few people with some boxes, parts and a soldering iron.

7407 on that integrated bridge rectifier seems like a plausible 7th week of 1974 date code

Years ago ... dare I say in the last century ... I had a radio that fit into that exact 'case.' It was one of my favorite radios ... Oh, well, that was back in the mid-1960s ...

Somehow somewhere I wish that the person who built this is watching this right now

Halo Mr Carlson ! This was interesting episode. You kept me glued to the chair. Thanks. Only small disappointment was a moment when you realised that There is some writing on the paper , but..... you didn't disassemble placeholders..... and see what is written at the hidden side. Who know ... what information is there ... waiting for 1/2 a century to be read ??? Lol... Keep posting. All the best !!!

I knew what that was as soon as I seen the triacs on the receptacles. Fun video! Thanks Paul!

@MrCarlsonsLab

2 жыл бұрын

Glad you enjoyed it!

This was someones homebrew project. They repurposed the old radio case. If you ask me its kind of a cheezy selection even than for a project box as it was one of those late 1960s cardboard case radios but whatever works lol.

What an interesting find

Surplus electronic place down the road had a customer of Asian origin used to come in all the time. When the customer passed, his wife called the store and begged the owner to come get all the stuff the old fellow had hoarded over the years. Test equipment, signal generators, digi voltmeters &c. In multiples. Some of it inexplainable or inexplainably modified & cobbled together. I ended up with some of it in my shop. This looks like a similar project from the old guy’s hoard. 73 de W8IJN

My dad made a light organ in his electronics class used a book shelf speaker box and some c6 colored lights and a plastic dimpled cover. It randomly changed to music and control on back adjusted the speed

great interesting video . thank you

I have an electronics education, but it was never used, I got a job with IT instead, 22 year now, but very interesting to follow you

@greendryerlint

2 жыл бұрын

Same story for me. 2 year electronics degree, have been working in IT over 20 years. Still like to tinker when the mood hits me though.

We used to call a kit for disco light. In backday In 80, some of them could flash with music too , we used to have different colour for lamps , good quality had isolated chock transformer for triac.

interesting, back in the perf-board days, many times quick crude stuff to save the day and make machines run again 🥳now a lot of it went to throw away modules 😟thanks cool video 😊

I remember back in the '70s, I was at a fair, and I saw these relayed Johnson counters (professionally manufactured, not home-made), except that the guy kept calling them "atomic clocks", which they're not.

That’s was a interesting vintage project, looks like they could have been using such devices in the old sci-fi movie’s for controlling the old computer panels.

Looking inside of the box, I remembered the 1970s when I was making a toy like a walkie-talkie with one or two-transistors radio and a wireless microphone. I also used Noble brand boards. Thank you for the interesting video.

Your knowledge is admirable sir.

I made basically the same thing a few years back, but with a 555 and a decade counter. I used it to switch relays to sequence 4 kodak carousel slide projectors. Control voltage is 13V AC, hence the relays. If anyone wants to build something similar, a good tip is to use every other pin on the counter so the projectors don't run away and change slide twice. Used a pot to adjust the frequency.

Looks like a Christmas light string controller.

My first blind guess is it's a signal generator with 4 preset outputs.

I really enjoyed this one. Cute. Interesting.

@MrCarlsonsLab

2 жыл бұрын

Glad you enjoyed it!

What a cool mystery box

Awesome. Thank you for posting

@MrCarlsonsLab

2 жыл бұрын

My pleasure!

@P61guy61

2 жыл бұрын

@@MrCarlsonsLab you really are one of KZread’s finest. I have a friend who was inspired by you and has become quite skilled. He knew nothing. Saw your work. Now he has a large, organized, and well equipped shop. His restoration work is great. You are making a positive difference to people and to the cause of retaining older equipment and past skills.

@MrCarlsonsLab

2 жыл бұрын

@@P61guy61 Thank You for your kind feedback William!

Reminds me of something a friend and I built when we were kids (now that is a long time ago) more him, I just did the soldering! TFS, GB :)

The case looks like it was an AM radio. I can remember buying a radio very similar and also remember the two snaps on back to get at the batteries, probably used 4 D-Cells. The dial would have gone side to side across the shorter width towards the top. I had one like that in the 70's. I had electronics in high school in the 70's and remember kids recycling cases for their projects. The perf board really looks like it was a high school project of some sort.

@danielmarek4609

2 жыл бұрын

@@Runco990 I agree that shop classes were important. In my senior year I also took metal shop along with electronics. I learned how to gas weld, and still know 40+ years later. The ironic thing was that for my senior year of electronics the instructor had to "dust" off the class for tubes! He normally only taught Electronics every other year, and it was solid state based. We got enough students together to sign up for 12th grade, needed 7 students to keep the class but 12 to get it scheduled. We got 5 "burnouts" as they and everyone else called them (think pot heads) to come and sign up for the class so we could get it scheduled. First day of class the 5 burnouts came in, got a pass to the front office, so they could drop the class and get a study hall the last period of the day. All 12 of us students were happy and I got to learn tube technology. I only used it once. I bought a 1957 Thunderbird with AM tube radio that didn't work. I dusted off my knowledge and sorted it out and got it working again. I did need a huge DC power supply because of all those heaters. So watching this channel brings back memories of that and that tubes are not quite dead and there is at least Mr Carlson out there bringing one tube device back to life.

I uncovered a project I built back in the late 70's using TTL and wire wrap. One of the boards has over 50 chips on it. Unfortunately my hand drawn schematics seem to have disappeared. It is nearly impossible to trace out the circuits under that jumble of 30 GA wire! To make it worse, I used a couple of 74188 prom's and have no idea of the code I burned into them. Reverse engineering that sequencer would almost be child's play by comparison.

Love this episode 🥰

Nicely sharp videos white balance great 👍🏻

Nice one, Paul 🇬🇧

That was fun Paul. Simple and easy.

@MrCarlsonsLab

2 жыл бұрын

Glad you liked it!

Might have been for a shop sign with lights around it that appear to move.

These are great but when are you going to post a 3hr electronics marathon like you used to do? 😁

@MrCarlsonsLab

2 жыл бұрын

Working on one now.

I THINK I HAVE IT! I would bet that was a home made controller for a completely different type of "Christmas Tree" - the king at a racetrack. Hit the button and it sequenced the lights for the starter.

I was immediately thinking 4 flip flop circuits due to the 4 symmetrical transistor circuits on the board. Love the home brew reed relay idea. Necessity is the mother of invention. I have used factory made electromagnetic reed relays but never thought to wind my own.

Thank You!!!

@MrCarlsonsLab

2 жыл бұрын

You're welcome!

Don't you just love old home made electronic devices? Probably saw an article in an electronics magazine and said to themselves I can make that. Now lets party!

Good detective work Mr Carlson. The radio dial really threw me at the start.

This was a interesting one for sure

Very cool. It’s one of the first things I learned with my kits as a kid. How you could make timers with simple circuits. Amazes me still today. I’d be very proud if I designed and built this At any age. Why not read that paper ? Looks like it had a map on it an explanation and maybe the designers name. ? Love to know how it came to you. Lol. This thing is very interesting because it is sending power to more than one light at the same time or so it seems. It’s very smooth.