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Tubelab Discussion and support of Tubelab products, prototypes and experiments

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Old 2nd March 2020, 04:30 PM   #21
cogitech is offline cogitech  Canada
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Yet Another SSE Build Thread
Had a spare couple of hours on the weekend to start building the chassis frame. The material is ~3/8 inch (9mm) Baltic Birch comprised of 9 layers. Incredibly dense stuff. The outer layer on one side is nice enough that I can stain and clear coat it and it will look just fine.

I had to do the ripping with a Skil saw so the long cuts weren't "perfect" but after a little bit of sanding they are "close enough". My new-ish power miter saw with lazer certainly made the 45s simple and extremely precise. Holes in the back panel for power, inputs and outputs went well. Now I am delayed waiting for the VU meters from China - I want to measure them before drilling the holes in the front panel. I won't put the frame together until all this drilling/prep work is done. Note: the front panel is leaning sideways in the photo, but the fit is actually perfect.

Yet Another SSE Build Thread-img_0733-jpg
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Last edited by cogitech; 2nd March 2020 at 04:34 PM.
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Old 2nd March 2020, 05:11 PM   #22
lykkedk is offline lykkedk  Denmark
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Nice shop, nice tool’s, nice chassis...

Jesper.
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Old 2nd March 2020, 06:54 PM   #23
cogitech is offline cogitech  Canada
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Yet Another SSE Build Thread
Thanks Jesper!

Did you get your new choke yet?
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Old 3rd March 2020, 03:44 AM   #24
lykkedk is offline lykkedk  Denmark
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No choke yet...

Will be here this week.
The Poland factory is delayed duo to excessive flu
- half employees were sick last week.

Jesper.
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Old 12th March 2020, 05:16 PM   #25
cogitech is offline cogitech  Canada
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Yet Another SSE Build Thread
I have to admit I am now second-guessing my decision to order the meters from China. A few of them have not even shipped yet and meanwhile I am starting to lose interest in building this amp. This is just the way my mind works. I have become focused on my daughter's mental health which recently became much more than a "quirk", and distracted by motorcycle upgrades/maintenance.

I hope I have the inspiration, time, and focus to complete this project once all the parts finally arrive. I have at least $800 invested so far, so it would be a shame to leave it half finished.

Last edited by cogitech; 12th March 2020 at 05:19 PM.
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Old 13th March 2020, 12:23 AM   #26
zman01 is online now zman01  Bangladesh
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Yet Another SSE Build Thread
cogitech,

It's very much understandable that you have to focus on more important things in life, especially the well-being of ones family members. Hope you can get your kiddo's issues sorted out soon. And in the meantime, if the motorcycle keeps you busy, let it be - just ride safely!

Some audio projects take longer than expected. Anything we can do to spur you on with you SSE build? You think you would be willing to proceed with a temporary box for your SSE, maybe something made of plywood scraps or spare wood pieces? The top can be done with 1/2" ply too, relieving you of any metalwork.
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Old 13th March 2020, 05:39 PM   #27
cogitech is offline cogitech  Canada
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Yet Another SSE Build Thread
Hi Zia,

Most of the work on the wood frame and top is done. I just don't want to put it all together until I have it 100% prepared (all holes drilled, etc.). I don't want to be messing with it once it is put together. The idea of a temporary chassis crossed my mind, but I just know I would never complete the final build if I got it up and running. I really want to avoid that. My plan is to do the opposite; get it all finished and looking the way I want it before even testing it.

I received notification that the Transcendars have shipped, so that's inspirational. Also, I will be working from home for at least the next 3 weeks to watch over my daughter. This puts my mind at ease, and since I can start work much earlier in the morning I will have more time in the afternoons to tinker. My daughter wants me to help her build some bat boxes so maybe we will do that as well.
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Old 24th March 2020, 02:53 PM   #28
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Thanks for sharing the journey, I have been reading about this amp for so long it feels like I have built one. The design, documentation and support on this site have completely convinced me the SSE needs to be my first tube build. I like the binding posts for the caps, a switch seems like a good idea as well if you like to roll.
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Old 13th April 2020, 01:56 PM   #29
cogitech is offline cogitech  Canada
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Yet Another SSE Build Thread
Quote:
Originally Posted by Indigent Audio View Post
Thanks for sharing the journey, I have been reading about this amp for so long it feels like I have built one. The design, documentation and support on this site have completely convinced me the SSE needs to be my first tube build. I like the binding posts for the caps, a switch seems like a good idea as well if you like to roll.
So far I have zero regrets about choosing the SSE as my first tube amp build. It is costing me more than anticipated, but I don't care. I am really enjoying the build.

I have considered a switch for variable resistance but I will do that as an add-on later if I really think I am going to roll tubes that often.
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Old 13th April 2020, 02:21 PM   #30
cogitech is offline cogitech  Canada
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Yet Another SSE Build Thread
Time for a big update.

I've had all the parts I need to build the amp for a few weeks now, but due to some major household projects the SSE has been on hold. On Saturday I did the final prep on the chassis frame and got it glued together. Yesterday was a big day:

- drilled the holes for the voltmeter and ammeters in the top plate
- drilled the holes for the transformers and installed grommets in the wire holes
- drilled the holes and secured the top plate to the wood frame
- installed the SSE board in the chassis
- installed the transformers onto the top plate
- installed power connector, input and output terminals
- wired up the power transformer, power switch, power connector
- wired up the OPTs

I still need to wire the inputs, install the choke and supplemental cap, and then thoroughly double and triple check my work before I can go through a checkout. The amp will be tested and run for a while without any of the meters connected. Here's a pic to show the progress (tubes installed just so I could see what it looks like). I'll have to remember to take a pic inside the chassis next time. Note: the chassis will be stained the same colour as the speaker to the left in the pic.
https://www.diyaudio.com/forums/atta...1&d=1586787676
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Last edited by cogitech; 13th April 2020 at 02:26 PM.
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