Viewmaster wrote:Harry, you are getting there, wherever there is.
You are doing much better than results I had from my Edikow machine
recording on wax. CD's cheaper and easier to get
than wax phonograph cylinders too. That's a big bonus.
Your perseverance in this project is amazing. Outstanding.
OH thank you Albert means a lot coming from you
Not many of us about who have given this a go and on the forum just you and i so far ,your Wax go at it got me interested in trying this as you a few years of trial and error in the making .
How you got wax to record video was pretty amazing not an easy project to try and using cd or dvd plastic is a hell of a lot easier and cheaper and less messy and at the moment still pretty easy to get but i am sure in the years to come cd dvds will be as rare .
Well getting there is meaning i want to push it a bit further than last time .
So far i now understand why i was getting a speed change from recording to play back on MK2 and it comes down to the torque in the asynchronous AC motor the little bit extra embossing a record is enough to slow it down and back to its normal speed on play back ...i corrected that with a belt driven dc motor correcting the AC motor for in sync play back ,Reason i was at first trying geared platter motor and now a Stepper motor direct drive is the way to go .
I was worried at first and stayed away from stepper motors due to noise but funny enough does not seem to be a problem at all and gives me the torque and variable speeds to try ,i may be able to go faster here before the motor clogs something i am looking into .
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I am also lucky i went with the ceramic cartridge 20 khz band width and work as a play back or recording device on cd's or dvd's any way .
What also interests me is harmonics i may not try it but its been on my mind for the cartridge question would it work double its working band width ? as we all know trying higher frequencies you need to amplify these greater to match the same amplitude of a lower frequency may be the case here too ?
32line 12.5HZ NBTV and SSTV /Fax is a place to start testing experimenting with this i would also like to try other systems like Bairds original system or my 240 line with 1.5hz system either way those tested have to be done on the multisystem Beast monitor or the devil monitor
I couldn't really try much on the earlier MK2 due to it had external electronics to it, here its all one unit easier to adjust try things that come to mind so i have not finished yet ,i have other projects on my mind but i will work on this a bit more results are getting closer to my wants .
The electromagnetic spectrum has no theoretical limit at either end. If all the mass/energy in the Universe is considered a 'limit', then that would be the only real theoretical limit to the maximum frequency attainable.