The Secret Society of Lathe Trolls

It's safe to say that this part of the vestax head is a complete misunderstanding... It is safe to say that this vestax head holder, including the torque tube, is heavier than the left and right channel power coils, including their bodies and cables, and the torque tube, which I used in my experimen...

Someone probably didn't understand what it means to record at half speed, but it plays back at normal speed. For example, you record with a machine at a speed [exactly the speed] slowed down by half, i.e. reduced by 50% of the rated playback speed on the turntable. And so if you play a record on the...

Now, if someone praises his head with Chinese vibrators with a coil diameter of 1 inch and would like to sell it to me, I will only tell him this: "Boy, I know, don't send it to me, but I can support you with half the money for this head, but don't send it to me because it's a poor art... "

I read a saying somewhere on the Internet: "Give me the weight of your drive unit and I will tell you how much your head is worth and what it is capable of..." A certain Troll trolls here on the forum [probably here on the forum, Swiss?] wrote that these German heads have drive coils with a diameter...

who is an expert in electronics and reading diagrams, will it work properly? :) regarding this power amplifier diagram with active negative feedback, you still need to remove the C517 capacitors and put 150pF in its place, and throw away C522 and use 100pF in its place, and connect the input and ou...

zdenek wrote: ↑

Thu May 30, 2024 1:51 am

look,diamond

look,diamond

I am speechless! First concrete picture. The V-spring and above all the cutting stylus are still missing to determine the actual frequency range when cutting. But a good job for three hours and otherwise nice and small. I'm curious to see what a complete, functioning cutting head looks like on your...

who is an expert in electronics and reading diagrams, will it work properly?

:) And one more thing about this prototype, you should forget about trying to make a decent recording with such a prototype head in plastic, polycarbonate and other similar materials, such a head will choke due to the resistance and hardness of these materials, it is absolutely not suitable for cutt...

I have some time, so I can argue with you. This primitive prototype of the cutting head [even the cutter is not visible because it was removed from the aluminum housing in which it was glued to reduce unnecessary weight and the cutter itself was glued into the reaction tube [1.2mm tube, not a rod], ...

one can only add to this thread that this primitive experimental head is smaller than one Chinese 20W 4Ohm transducer, and it outperforms these Chinese transducers by 10 orders of speed and acceleration... that's just so much magic... and so much that understand what is going on...

You wrote: ... As feedback, I used an Ortofon phono cartridge, which gave a signal of about 5 mV at 1 kHz. After mixing the inverted phase FB signal with the inverted RIAA input signal, I had to drive the 200W amplifier to full output power to get close to the 0dB level and 1kHz recording frequency...

All this has already been done by other people and the results are poor, but they are better than no feedback at all

here is a photo of the drive coil of a professional head, it is very easy to burn it... :) A drive coil from a professional head will last for many years if handled professionally and is not easy to destroy. If handled incorrectly, any coil will burn out easily. Whether a professional head for $10k...

here is a photo of the drive coil of a professional head, it is very easy to burn it...

So many posts with so little content - that's quite remarkable. I won't argue with you, but I have to tell you this. I tested these Chinese vibrators at half speed and reached a fairly even level at 3kHz, which gave about 6kHz at a specific speed of 33.33 rpm. I had to completely change the correct...

organicmusic wrote: ↑

Tue May 21, 2024 4:12 pm

Hello,
could you send me a foto from the bottom with sub platter please? I'm interested.

best regards,
Thorsten

Hello, yes, of course, in some time. For now, I can show more photos.
Regards .

I'm away from home on a business trip and I can't influence it because I don't have time. Please wait, I'll come home and I'll share the recordings. There is a lot of content in my posts, but you have to read it. Please don't call me a fraud because I have never cheated anyone in my life. Sometimes ...

For sale vacum platter end vacum block module Hello, update to the previous sale. New foil on aluminum alloy [from the bottom] vacuum plate and lower vacuum module with adjustable sub-platter of the main plate. That would be $2500 us plus shipping [including $700 to maintain this website] The main p...