Did I blow my TKV Cutting head?

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Jccc
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Did I blow my TKV Cutting head?

Post: # 64336Unread post Jccc
Fri Mar 08, 2024 2:30 pm

Hello , i hope some people on the forum could help .
I was cutting with the TKV cutting head when all of a sudden the sound just turned off.
I checked to see if the fuses i used were blow out and they seem to be ok.
I’m starting to believe the speakers inside are blown.

Does anyone know what kind of little speakers he used for the cutting head?
I wanna see if i could change them out and fix it.

I’m sure if i contacted them they would charge a fortune for a repair.

I’d rather repair it myself if possible.

Any help would be great

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tragwag
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Re: TKV Cutting head not working

Post: # 64337Unread post tragwag
Fri Mar 08, 2024 2:35 pm

huh! that's a real head scratcher.
I've had great conversations with Konstantin on Facebook messenger.
he's easily reachable there: https://www.facebook.com/kostix
making lathe cuts on a Presto 6N, HIFI stereo cuts on vinylrecorder
at Audio Geography Studios, Providence, RI USA
http://www.audiogeography.com

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Jccc
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Re: TKV Cutting head not working

Post: # 64339Unread post Jccc
Fri Mar 08, 2024 3:22 pm

i’m gonna run some test to see if maybe my amp might have blown a fuse and check my wiring.

It is really strange how the head just stopped working.
I didn’t see any smoke or smell any burnt electronics.

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PMST
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Re: TKV Cutting head not working

Post: # 64340Unread post PMST
Fri Mar 08, 2024 4:22 pm

Have you checked the impedance of the coils? Do that before taking anything apart

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Jccc
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Re: TKV Cutting head not working

Post: # 64341Unread post Jccc
Fri Mar 08, 2024 4:39 pm

so i checked the leads coming out the head and it seems one of them is not working.

The other channel is working well as it passes sounds when connected to the amplifier.

But when i connect the other channel there is no sound from its side.

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PMST
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Re: TKV Cutting head not working

Post: # 64342Unread post PMST
Sat Mar 09, 2024 6:25 am

Again, check the impedance of the coils as then you can likely tell if it is a coil burnt out, or just a faulty cable coming from the head. One is an easy cheap fix, one isn't, so do this when you can.

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kostix
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Re: TKV Cutting head not working

Post: # 64343Unread post kostix
Sat Mar 09, 2024 6:17 pm

Hey buddy! Just answered to your private message with some details. Let me know how it goes!

Konstantin

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Jccc
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Re: TKV Cutting head not working

Post: # 64344Unread post Jccc
Sat Mar 09, 2024 8:01 pm

just checked PM and replied.
thanks!

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Jccc
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Re: Did I blow my TKV Cutting head?

Post: # 64588Unread post Jccc
Sun Apr 14, 2024 10:30 am

Just wanted to update this thread.
i did indeed burnout one channel of the cutting head.

I was using a 1 amp fast blow fuse which was way too high for this cutting head. Kostix recommended i use a 500ma fast blow.
I sent my cutting head for repair to Kostix and he did an excellent job in repairing it and giving me info on certain frequencies that need to be tamed down.


i now have the cutting head back and it’s back in action.

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Podorvanov
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Re: Я взорвал свою режущая головку TKV?

Post: # 64843Unread post Podorvanov
Sun May 12, 2024 8:15 pm

So what speakers or tweeters are used in this head. I don’t understand what kind of secrets they are if they can be bought on the open market. These are not your personally designed speakers or tweeters. They do not have any modifications. Anyway, sooner or later this secret will become clear and everyone will know the manufacturer and model. Why are you so greedy in this regard? I don't care, I use brand name Neumann and Ortofon heads for recording. But it would be interesting to assemble and test a dynamic head.

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kostix
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Re: Did I blow my TKV Cutting head?

Post: # 64844Unread post kostix
Mon May 13, 2024 12:31 am

Basically, you can use any tweeters that you can find on the market, given they fit dimension-wise the application, question is how long they are going to last.. that depends on the quality of build. More often than not, doing this kind of research costs time and money on sourcing different kind of tweeters and building countless prototypes and tests, which are not always immediate, so more time is needed to make sure something works reliably.
Very soon I will have an upgrade available with custom made magnet circuits and coils which will have higher power/level capabilities.

Konstantin
(TKV Instruments)

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