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Old 19th August 2019, 12:25 AM   #9081
kissabout2002 is offline kissabout2002  Italy
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Originally Posted by torrence View Post
A GU-50 SET driven by a 6EM7. I was trying to make something small like the Dynaco ST-35. I started working on this amp in Spring of 2012 after some threads by Wavebourne. It has only taken me 7 years to finish it...
Wowww very good looking amp, for sure it takes you long time but the care on details is outstanding, I like the combination of lamination and aluminium very very nice congrats so enjoy the music
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Old 19th August 2019, 08:02 AM   #9082
JoeAlders is offline JoeAlders  Netherlands
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Quote:
Originally Posted by torrence View Post
A GU-50 SET driven by a 6EM7. I was trying to make something small like the Dynaco ST-35. I started working on this amp in Spring of 2012 after some threads by Wavebourne. It has only taken me 7 years to finish it...
Perhaps a stupid question: What are these (for me) strange looking frames around two of the tubes? Could not see if it are tubes though....
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Old 19th August 2019, 08:11 AM   #9083
soundbrigade is online now soundbrigade  Sweden
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Originally Posted by JoeAlders View Post
Perhaps a stupid question: What are these (for me) strange looking frames around two of the tubes? Could not see if it are tubes though....
That's a special frame that keeps the tube in place mechanically, so installed in a MiG-fighter the tube will nicely sit in place, whatever the airplane does. Besides, the tube can also be pushed into the socket in different ways and the frame has a guide that steers the tube into the right position. There are more advanced sockets like this one. You can see the slot at the bottom of this pic. The tube has a ridge that fits that slot.

Click the image to open in full size.
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Old 19th August 2019, 08:20 AM   #9084
JoeAlders is offline JoeAlders  Netherlands
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Thank you very much soundbrigade for your explanation!
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Old 19th August 2019, 08:35 AM   #9085
soundbrigade is online now soundbrigade  Sweden
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I would like to add that there are sockets without the frame, and using them you must be very observant to stick the tube into the socket correctly, else you will kill the tube instantly - been there, done that.

Here's a "naked" socket and you see the "key". Missing that and you will loose a tube.

Click the image to open in full size.

Btw the GU50 are wellknown for their sound qualities and can be found pretty cheap here and there.
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Old 19th August 2019, 10:17 AM   #9086
Bigun is offline Bigun  Canada
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Originally Posted by hellotron View Post
Hi. In the meantime I committed such a "toddler". Includes: Digital FM radio, Bluetooth, EQ, micro SD / USB reader, aux input, manual tone adjustment. Audio amplifier on 5670 and EL95 tubes, power output 2 x 3W. The whole is controlled from the remote control.
nice project! you should start a new thread and tell folk more about it.
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Old 19th August 2019, 01:15 PM   #9087
JoeAlders is offline JoeAlders  Netherlands
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nice project! you should start a new thread and tell folk more about it.

+1
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Old 2nd September 2019, 08:58 PM   #9089
Shef is offline Shef
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Old 2nd September 2019, 11:03 PM   #9090
Scorpion is offline Scorpion  Canada
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Ok, here they go...

Some of the OUTSIDE first
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