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Author Topic: Lab Gruppen fp6400 conversion help  (Read 1181 times)

Kelso Kline

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Re: Lab Gruppen fp6400 conversion help
« Reply #10 on: March 08, 2024, 07:47:45 AM »


That link doesnt work, do you have the permissions set right? 


If you don't want to deal with these amps and would rather get something with autovoltage I will take them off your hands.
I have the galleries set to public. There are 12+ views already. Is anyone else finding issue with the links that I posted?
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David Morison

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Re: Lab Gruppen fp6400 conversion help
« Reply #11 on: March 08, 2024, 08:56:00 AM »

I have the galleries set to public. There are 12+ views already. Is anyone else finding issue with the links that I posted?

Both are returning 404 - not found errors right now.

Re the original question, are you not able to communicate with whomever you acquired them from? That would presumably be the most direct way of finding out.
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Kelso Kline

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Re: Lab Gruppen fp6400 conversion help
« Reply #12 on: March 08, 2024, 10:35:56 AM »

Both are returning 404 - not found errors right now.

Re the original question, are you not able to communicate with whomever you acquired them from? That would presumably be the most direct way of finding out.

Oh! I didn't realize that! Can someone inform me of the proper way to post images or links on this site? I attempted to do it through the attached image, but it only allows up to around 500 kb. I ran it through Imgur.com instead and made my gallery public in hope that this work. Is there another route that I can take?
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Kelso Kline

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Re: Lab Gruppen fp6400 conversion help
« Reply #13 on: March 08, 2024, 10:55:52 AM »

Unfortunately, I am not able to communicate with the previous owner. That would have made this a whole lot easier!
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Scott Holtzman

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Re: Lab Gruppen fp6400 conversion help
« Reply #14 on: March 08, 2024, 05:35:14 PM »

Oh! I didn't realize that! Can someone inform me of the proper way to post images or links on this site? I attempted to do it through the attached image, but it only allows up to around 500 kb. I ran it through Imgur.com instead and made my gallery public in hope that this work. Is there another route that I can take?


You want to use the site imgbb.com once you upload the image select BBCODE and then paste that little code fragment into your message.  Like magic you can do slideshows and very large pics with a preview.   
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Scott AKA "Skyking" Holtzman

Ghost Audio Visual Solutions, LLC
Cleveland OH
www.ghostav.rocks

Kelso Kline

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Re: Lab Gruppen fp6400 conversion help
« Reply #15 on: March 09, 2024, 09:19:19 AM »


You want to use the site imgbb.com once you upload the image select BBCODE and then paste that little code fragment into your message.  Like magic you can do slideshows and very large pics with a preview.

Great! How about this..
https://ibb.co/RTtGLhw
https://ibb.co/f1DS4hV
https://ibb.co/StkXHWJ
https://ibb.co/8MWfKMs
https://ibb.co/stt4RY9
https://ibb.co/sjFxhpX
https://ibb.co/nb560Kj
https://ibb.co/hDd9b54
https://ibb.co/7zyKFyg
https://ibb.co/VwJKn35
https://ibb.co/P6JP4X1
https://ibb.co/rmtjqhw
https://ibb.co/bPYTdqG
Or..

« Last Edit: March 09, 2024, 09:23:46 AM by Kelso Kline »
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Riley Casey

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Re: Lab Gruppen fp6400 conversion help
« Reply #19 on: Yesterday at 04:10:15 PM »

I have not had occasion to make that conversion but from the looks of the service manual the primary change is in the flyback PSU board. If you can find that board marking the designations are on this list. The only problem I ever had with the Lab 34/6400s we stocked were the 10000ufd filter caps on the SP80 board. Several of those caps failed over the course of twenty years and we always replaced them in pairs. Might be worth checking those as well.

ProSoundWeb Community

Re: Lab Gruppen fp6400 conversion help
« Reply #19 on: Yesterday at 04:10:15 PM »


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