Strobe Disc! Record-ology!

[@Tunz909]

yes excellent and very informative I had no idea what those markings were for.....most folks who do videos just ASSUME that we all now!!! Thank YOU!!! and God Bless!!! Bruce

[@robbalboni4179]

this was an interesting and helpful tutorial on setting your turntable at the correct speed with this strobe disc, thanks for another informative video! rob

[@Recordology]

Thank you

[@rexoliver7780]

Nice strobe disc-alignment device-sure beats the cardboard ones of the past.Too bad that Hudson disc wasn't available years ago-would have been perfect for radio station TT's.You could only use the cardboard devices a few times before they got bent or worn.Usually came with test records .Shure made an EXCELLENT test disc-have one around somewhere.Most radio stations had one.Too bad stations don't use TT's anymore!Was more fun to work with the TT's than the modern digital alternatives.

[@CoreyRoth]

Thank you for showing this! I have Thomas Edison’s first Promotional Stroboscopic mounted on a letter written to him. He made notations at the top of the page asking for it to be explained. And thank you for explaining it to me! Corey

[@Recordology]

Wow! Thank you 😊

[@danielarick2105]

On the antique machine the way it was done back in those days was a piece of paper under the record and counting the number of times the paper past a certain point usually for 78,78 passes in one minute, or 80, was 20 passes in 15 seconds, I think this was pretty accurate

[@turnsoonest]

ive never heard of these, but you described it so well. thank you

[@idratherfly2000]

Question, I have an old RCA console player that can play 16,33,45,78. It has the built in strobe feature, when I look into the strobe viewer window I see 4 rings of those blocks. The ring with the biggest blocks is closest to the outside of the turntable, then working your way in towards the center of the turn table the squares get smaller with inner most ring being the smallest blocks. I dont know which size blocks are assigned for each speed. After watching your video can I assume that 16 will be the smallest blocks and getting bigger as speed increases with 78 being the largest blocks? Thank you and great video!

[@idratherfly2000]

Hey Record ology, 2 likes so far on this post…

[@Trance88]

These are really snazzy. Unfortunately if you use a rim drive record changer type turntable and if you notice the speed isn't quite dead on, you can't really do anything about it.

[@djfueler]

That’s hilarious that Hudson HIfi used your video on their channel!

[@Recordology]

We make special versions for their use.

[@paolomarcelogalvan1938]

Can be use a copy of photo paper on like this on your video

[@antoniograncino3506]

Looked all over your website, but no strobe disc offered. What is the story ? I don't do business with Amazon. Rather get it from you direct.

[@garretts91]

This disk is much easier to read than the printable options but the small, printable disks are still better. You need to set your speed while playing a record. You can't do that with this large disk. The small disks can be placed on top of the record and give you plenty of time before the stylus would run into it.

[@tetsuemusic]

Great video. At last I understand how it works

[@ly776]

So on you first example, with the marks moving forward - does that indicate the rotation is too fast? When you adjusted pitch did it slow the turnable? Mine moves ahead about one mark per rotation on 33 1/3. It is a 50 year old tt so without pitch control. So what does that indicate as a percent error? I transfer recordings and I could alter pitch in post processing, but it would be helpful to know how much the turntable is off speed. Finally, is there any appreciable drag when playing a record that would justify having the table slightly fast?

[@justinrun100]

Great lesson. Thanks for sharing

[@Recordology]

Thank you

[@mikeindel]

I cant find the other video about protractor side of disc

[@Bielzebub1981]

noticed that too, might have to ask Mr. recordology1938 nicely to make it

[@philbrown5516]

Thanks for the excellent and detailed review and tutorial. I just tried the Hudson strobe disc. By the way, Hudson embedded your video in the disc's product page on Amazon, and refers us to your video for instructions via the product's Amazon page and in an email Hudson sent me, but Hudson replaced your name and logo with theirs on the video, not giving you credit. Your "Record-ology" intro is stripped out and replaced with Hudson's animation. Anyway, the strobe disc showed that my Boytone BT11B turntable is right on the money with 45s, and only a hair slow on 33s. The BT11B has pitch control and a strobe. I used a strip of sticky notes to mark the speed settings by the pitch control slider. However, before trying the strobe disc, I tried the built-in strobe on the turntable. It does not give meaningful results. To get the ants on the side of the turntable to stop marching for 45, I had to slow the pitch down almost to the bottom limit of the slider. And even with the slider all the way to the bottom, the 33 setting turntable markers were still moving as though it were too fast. I took a record that I also have an official MP3 copy of, and the MP3 copy sounded right when I had the pitch setting set around 0, as I verified by later using the disc. In your experience, are the strobes on cheaper turntables this useless?

[@Recordology]

Thank you for your comment! I actually partner with them to create their Amazon videos but thank you for letting me know anyway. If the pitch slider isn’t enough to change the speed appropriately, look for little adjustment screws under the platter or under the unit. Sometimes you have to calibrate the pitch slider.

[@philbrown5516]

@@Recordology Would that apply in this case? The actual turntable speed is correct with the slider set in the middle, as determined by the strobe disc. But trying to adjust the pitch slider to what I see via the strobe light and the markings on the turntable is way off.

[@eclipse_pvp-gamez5428]

So if the us and Europe spin at different speeds wouldn't that affect sound?

[@chickenfoundation9323]

You use the ring to match with hz

[@asrarul12]

Gee Whiz-- Thanks a lot. Cool video presentation. Love from Bangladesh.

[@rexoliver7780]

Another note even if the TT has a built in strobe-you use the Hudson or other strobe disc to test the accuracy of the TT's strobe.On Technics TT's they were very good in accuracy.What most stations used in the last days of TT's.Otherwise they had the Rek-O-Kut TT's.Those were idler wheel drive TT's an adjustment screw was provided to adjust each speed using the strobe disc and your "greenie" screwdriver.Oh those were the days.

[@Recordology]

Good points

[@KillerMcGinty]

No matter what light I use I simply cannot get any of the rings to do the strobe effect. Any advice is greatly appreciated... Thanks in advance!

[@FuriousTortoise]

Where are you located? In the United States (it matters because of different electricity our homes get) you look at that grouping of three inner rings. The 33rpm is the outermost of the inner rings (as stated in the video). I can see a fuzzy strobe effect under direct illumination of a 60W incandescent bulb from a desk lamp. Overhead lights are NOT good enough-you need a direct desk lamp. The lines on mine were fuzzy but I could see it “march” in different directions as I changed the pitch knob.

[@dm95422]

I have the Hudson Stobe platter one that's one sided, the other side totally blank. Can I use the blank side to adjust anti-skating ??

[@Recordology]

Yes you can!

[@JadeSa11y]

Oh ok I thought it magically lit up as it span round 🥴

[@RockinJohnnyaitken]

I'm still not any wiser lol. Unless its my eyes the lines are still wobling about so I can't tell what's what really.

[@steveleggett344]

Thanks Very helpful.