Tractrix horns with the BMS 4524L high frequency compression drivers
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Back loaded horn loudspeaker based on FOSTEX FE206 full range drivers. 
811A Tube amp DIY project. This direct heated triode design uses the Svetlana SV811-3 Tube. 
811A schematics
Submitted by costas sarris on Sat, 30/08/2008 - 10:50.
Here are some interesting schematics for the 811A tube.
The Shishido (wavac) 811A tube amp schematic :
And this is Ganti's 811A tube amp schematic :
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| Attachment | Size |
|---|---|
| shisido_small.jpg | 46.01 KB |
| 811kairo_small.jpg | 35.87 KB |
| ganti811_small.jpg | 52.11 KB |
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