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Old 3rd January 2011, 03:32 PM   #121
Structo is offline Structo  United States
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That is cool with the lexan cover.
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Old 15th January 2011, 12:37 PM   #122
debk is offline debk  United States
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My Tubelab SE!
Amp sounds great. Very happy with the project

Click the image to open in full size.

Click the image to open in full size.

Debra

Last edited by debk; 15th January 2011 at 12:43 PM.
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Old 15th January 2011, 04:51 PM   #123
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Click the image to open in full size.
What did you use to cut those vent slots?
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Old 15th January 2011, 05:36 PM   #124
debk is offline debk  United States
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I had the top panel fabricated by Frontpanel Express

Deb
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Old 16th January 2011, 03:09 PM   #125
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Nice! I love the top panel divided in two to allow easy access underneath. Great idea.

I'm also pretty convinced that Front Panel Express will be doing all of my further chassis panels... I'm done with that part of the DIY world.
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Old 20th February 2011, 05:11 PM   #126
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Default My Tubelab SE

Finally finished my amp......
Attached Images
File Type: jpg Tubelab SE 1.jpg (196.2 KB, 1188 views)
File Type: jpg Tubelab SE 2.jpg (192.3 KB, 1169 views)
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Old 20th February 2011, 06:52 PM   #127
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Looking good!

Sent from my Xoom using Tapatalk
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Old 20th February 2011, 06:56 PM   #128
Structo is offline Structo  United States
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Originally Posted by boywonder View Post
Finally finished my amp......

Can you tell me more about what you did with it?
Obviously separate power supply, is that to reduce hum?

Chassis? Did you build that from scratch or buy it somewhere?

What are you driving it with?

Thanks
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Old 20th February 2011, 08:15 PM   #129
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Quote:
Originally Posted by Structo View Post
Can you tell me more about what you did with it?

Obviously separate power supply, is that to reduce hum?

Chassis? Did you build that from scratch or buy it somewhere?

What are you driving it with?

Thanks
Yes, separate power transformer to reduce hum. I would have done more PS components on the PS chassis, but the PCB makes things convenient to leave them in the main chassis. I had umbilical connectors & cable laying around so what the heck.

I built both chassis from scratch using a mill and a table saw....and planer, pop-riveter, lacquer sprayer, bead-blaster, etc etc......only took about 430 man-hours .

I have a couple of preamps including an Aikido; lately I've been using an Anthem Pre-1.

A few details:

Power transformer is an Edcor XPR-131 with it's endbells stripped and painted with hammer tone Rustoleum.

I took the pics with a GZ37 rectifier in place; I'm presently using a 5AR4, but I'm going to pop in the GZ37 once I'm comfortable everything's in it's happy place.

James 6123 transformers on the 5K tap, James 5H choke, JJ 300B's

100uf ASC motor run bead-blasted, in parallel with a 180uf/500V Panasonic TS-UP mounted on the board. I also made a separate board to hold snap-in style bias supply caps since they were a little tall for the chassis. They are mounted to the sidewall under the hood. C1 is a 4.7uf.

It's presently set up with 360V/70ma on the 300B's. I plan on playing around with the 3.5K transformer taps etc.
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Old 20th February 2011, 10:57 PM   #130
Structo is offline Structo  United States
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Man that looks totally pro.
The James transformers look so cool!

I'll bet it sounds great!
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