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Tubelab Discussion and support of Tubelab products, prototypes and experiments

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Old 27th May 2019, 03:59 PM   #481
sunil is offline sunil  India
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Join Date: May 2003
Location: Bangalore, INDIA
Quote:
Originally Posted by kilokat7 View Post
I was probably one of the last few to purchase a first gen TSE board from George before his supply ran out. This is my first tube amp build and it has been a rewarding experience, from the electrical build > to designing the top plate in AutoCAD > to my novice woodworking skills.

Many thanks to George and this great forum and those who post here. I had no issues during the checkout process and the build really went smoothly. All components (minus the power switch) are mounted to the top plate and the whole thing can be removed from the cabinet easily if needed. The amp sounds phenomenal and I couldn't ask for anything better!

Nothing out of the ordinary, but a few details:

Edcore XPWR131-120 power transformer
Triad C-14X choke
Electra Print 5K@50ma audio output transformers
Temco 100mfd motor run cap
5U4 rectifier
RCA UX-245 output tubes
Front Panel Express 10" x 16-1/2" brushed aluminum top plate
Flush-mounted tube sockets
Test points in top panel for easy access
Hickory cabinet finished with shellac with oak legs

The amp currently drives a pair Klipsch KG 5.5 speakers with plenty of power for my needs.
Nice work. Very pretty.
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Old 14th August 2019, 06:46 PM   #482
ASRMX1 is offline ASRMX1  Mexico
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Join Date: Jul 2019
Location: Mexico
Default My Tubelab SE

My last posts were a failure. I could not post pictures. I hope this time works fine.
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Old 17th August 2019, 11:13 PM   #483
Mr_Zenith is offline Mr_Zenith  United States
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Join Date: Aug 2009
Location: KC Metro
Pictures of your Tubelab amp
Default TSE-II Complete

Just completed my TSE-II this afternoon after about two months of painstaking work. This all started out as a populated PC board on a temporary plywood chassis; it has since morphed into the form seen below, which was inspired by an Atomic Age (aka "Googie") -themed coffeehouse I frequent while on travel.

The chassis measures 12" x 12" x 4" on the outside (not counting the feet), and is constructed of curly maple, cherry, and 1/8" 6061-T6 aluminum plate. I paid strict attention to matching the grain on the corners of the maple box, and finished all of the woodwork with several coats of nitrocellulose lacquer. All fasteners are 18-8 stainless to eliminate the possibility of corrosion.

To make it easier on others in my household I installed an Arduino-based infrared remote control that drives an ALPS motorized volume pot. The power switch light is used as a status indicator; normally steady when the power is on, it flashes whenever the IR sensor receives a signal. The Arduino unit receives its power through a dedicated 5V regulated supply.

To make it easier on myself, I took advantage of some unused space on chassis side to install a complete set of tip jacks for CCS and bias adjustment (thanks to moggi1964 and kilokat7 for the nudge in that direction!). The jacks are recessed for a cleaner look, and they're covered for safety. Finally, I laced all of the wiring into cables - just for the heck of it. Covering all of this is a custom bottom plate with plenty of ventilation.

Thanks to George for such an incredible design. Of all the amps I've built over the years, this has easily become my absolute favorite. In fact, one of the reasons it took me two months to complete was that I couldn't stop listening long enough to get any work done!
Attached Images
File Type: jpg Front_F.jpg (650.0 KB, 49 views)
File Type: jpg Panel_F.jpg (695.8 KB, 47 views)
File Type: jpg Panel_Off_F.jpg (668.9 KB, 38 views)
File Type: jpg Rear_F.jpg (660.4 KB, 39 views)
File Type: jpg Wiring_F.jpg (677.6 KB, 42 views)
File Type: jpg Bottom_Plate_F.jpg (687.3 KB, 42 views)

Last edited by Mr_Zenith; 17th August 2019 at 11:16 PM.
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Old Yesterday, 01:40 AM   #484
zman01 is offline zman01  Bangladesh
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Location: Dhaka
Pictures of your Tubelab amp
Congratulations Mr_Zenith, well executed project!
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Old Yesterday, 04:41 AM   #485
kilokat7 is offline kilokat7  United States
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Join Date: Dec 2018
Location: West Michigan
Mr_Zenith: beautiful build and very well executed! That's one to be proud of with great attention to detail. Lots of clever ideas in your build and your laced wiring looms are a lost art - well done sir!
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Old Today, 12:22 AM   #486
baker8 is online now baker8  United States
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Join Date: Feb 2018
Location: San Francisco
Good job Mr_Zenith! How did you fabricate the top plate? Looks very professional.
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