T560 Modifications - What have you done?

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T560 Modifications - What have you done?

Unread postby David34 » Tue Apr 18, 2017 6:22 am

Hey all..

I have a T560 - Great machine, very happy with cuts.

I still can't help but think there are some common modifications that could be made to the machine, which I understand MAY not make a HUGE difference, but being the nature of the beast and me having OCD,
These are the things I have so far modified:

-Replaced Souri RCA for gold plated good quality ones
-We had a hum in low end (50-70hz) in a silent groove, found the source to be a "piggy-backed" power supply to both Speed controller and Stylus heating, removed and each have their own power supply (I started a thread on this here: https://www.lathetrolls.com/viewtopic.php?f=1&t=6826

Things that I would like to mod/improve:

- Souri small mixer, Gain is all the way up and glued? I would like to remove this mixer but not sure how to bypass?
- Replace ALL RCA connectors to proper pro audio connectors

I would love to hear what you guys and gals have done to improve your cuts and your T560. We can all learn and improve by helping each other.

So, if you have made a significant modification, please let us know - add a picture so we all can see! Show us your pride and joy!
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Re: T560 Modifications - What have you done?

Unread postby David34 » Tue Apr 18, 2017 6:24 am

OH!! And now i ONLY USE 2mm Souri blank discs. I don't use 1.5mm anymore. Much flatter.

I also purchased the platter from Souri. No wow and flutter - big improvement.
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Re: T560 Modifications - What have you done?

Unread postby TheCrates » Tue Apr 18, 2017 9:38 am

Hi,

in case you missed it, if you use the search option youll find almost every mod useful for the t560. It was very helpful for me too.
Check out the ole cats, they know how to max out this machine: duophonic, vinylrec, dr-dub (germany and austria).

I doubt anybody will tell his secrets, but if you look close on their setup -and youre a bit talented, you'll see what they are after with the mods.

Starting with a sp10 for torque, wisa 1000 / rietschle thomas vte vaccuum pump, yasunaga /hi-blow aquarium pump, arduino automation with stepper motors, replacing mixer, updating cables, adding 19'' eq, desser, compressor, and adding another cutting head.

As you mentioned, the machine is a real gem for the price and it has a lot of potential to do cuts, which are not comparable with high end cuts, but way way good enough for cutting down stuff for the semi pro area.

Cheers,
Crates
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Re: T560 Modifications - What have you done?

Unread postby handcut » Tue Apr 18, 2017 4:14 pm

Well, the whole set-up is all racked & flight cased now, so it's kind of portable. Replaced all cutting electronics with stuff I've built myself (lots of valves/vacuum tubes and trannies), except for the heater & pitch control. Working on a high torque, 5-speed turntable and various bits of automation... and an LPI meter for shits & giggles. Spending a bit too much time cutting to make any real progress at the moment though... Probably switch the head at some point... Would REALLY love to ditch the vacuum. Really.

If you ditch one thing from the set up, ditch the DJ mixer. It's shite.
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Re: T560 Modifications - What have you done?

Unread postby 2bitcomputer » Thu Apr 20, 2017 2:04 am

Howdy,

First thing I did was to hook up a millivolt meter to the motor speed control jack on the back of the main unit so I could get more information on what groove distance I was using. At the same time I also hooked up a ten turn pot with the meter so I could accurately set the groove distance - I didn't like all the guess work involved in trying to set the groove distance with the sticker/dial/pot that came with it. :?
I got a little box and made a face plate and stuck everything inside.
It's not very pretty

mVolt meter.jpg


but I find it very helpful!
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Re: T560 Modifications - What have you done?

Unread postby TheCrates » Thu Apr 20, 2017 2:26 am

Nice one, never thought about this one, can see your mod on the heating too!
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Re: T560 Modifications - What have you done?

Unread postby tragwag » Thu Apr 20, 2017 11:12 pm

Nice! Bypassing the mixer is easy if you disregard the ability to playback while cutting.
My chain goes like this (basically):
computer->audio interface->main unit (includes RIAA)->level meter->power amp

add: I would love to replace the RCA's too, but I'm not too savvy or steady of hand.
making lathe cuts on a Presto 6N, HIFI stereo cuts on vinylrecorder
at Audio Geography Studios, Tallahassee, FL USA
http://www.audiogeography.com
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Re: T560 Modifications - What have you done?

Unread postby 2bitcomputer » Fri Apr 21, 2017 1:34 am

Yes.
I did the stylus heater also.
It's harder than the pitch motor. You have to go in and modify the circuit to get the same kind of access/control.
You can see them both in this picture:

heater.jpg
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