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211 SE amplifier (UV-211). | diyAudio
https://www.diyaudio.com/community/threads/211-se-amplifier-uv-211.381995/
Hi Folks, I have got Sanei UV-211 tube amplifier... Bias settings according to manual : 90V( Grid) and 65mA(for 211 tubes) bias...at this settings I get distortions in sound...I can get rid of distortions only on high Bias - around 100-110mA. I …
Folded/Shunt Cascode driver for 211 | diyAudio
https://www.diyaudio.com/community/threads/folded-shunt-cascode-driver-for-211.380674/
Folded/Shunt Cascode driver for 211. On the left is the input stage that I am currently using in my SE amp. The input stage drives a MOSFET source follower that drives the grid of a transmitter triode. I get about 2.5%THD at 75Vrms with about 65dB of gain in that stage. Distortion is a very low order waterfall.
A 211 SE Triode Amp | audioXpress
https://audioxpress.com/article/A-211-SE-Triode-Amp
The amplifier section is very simple, but effective. The only adjustment is in the 211 filament circuit. Measure from ground to each side of the 211 filament with your meter. Adjust R9 until the voltage on the filament is nearly equal (+5V, 0, −5V). The bias on the 211 cathode should be around 60V DC.
pros/cons of a 845 VS 211 | diyAudio
https://www.diyaudio.com/community/threads/pros-cons-of-a-845-vs-211.103744/
The 211 works better with a 15-20K transformer. 3) 845 will give decent output with only 850-900 volts. The 211 likes to see 1100-1200 volts before it "comes alive". BUT The 845 needs tons of voltage from a (relatively) low impedence driver for it to do the above benefits. The 211 is easy (relatively) to drive.
How to build my DIY 211 Se power tube project High …
https://www.youtube.com/watch?v=d4L5g9PrxNQ
how i have build my first High Voltage audio project.this needs to be careful because it works with high voltage, here I am using PT 1500Vac with CT.very da...
Sonic differences: 45, 2A3, 300B, 845, 211 | Page 2 | diyAudio
https://www.diyaudio.com/community/threads/sonic-differences-45-2a3-300b-845-211.172700/page-2
Small Triode (45, 2A3 or 300B) or Big Triodes (211, 845). If you choose small Triode stick with the 300B (more power and better sound). But if you choose the Big Triode amp, forget 211 & 845 tubes, the best sound Big Triode is the 805 Top Cap, it had a huge gain of 50, not 6 or 12, and is a very detailed tube. If you can afford real NOS 805 (if ...
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The diyAudio Store - DIY amplifier kits, chassis, and parts
https://diyaudiostore.com/
October 29, 2021. After one of the longest gestation periods in diyAudio's history, the WHAMMY all-in-one kit is now available for pre-purchase. Everything ships from the US. Chassis are are available to ship immediately. The parts kits are waiting on a final touch to be added, and we can guarantee they will ship ...
DIY AUDIO PROJECTS - Do-It-Yourself Hi-Fi for Audiophiles
https://diyaudioprojects.com/
DIY Audio Projects. Do-It-Yourself (DIY) Audio Projects - projects for audiophiles, hi-fi enthusiasts, music lovers, electronic hobbyists, woodworkers and those who like to learn, build and listen to music. This site exists to promote …
DIY and Hi-Fi Audio Schematics
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DIY and Hi-Fi Audio Schematics. This is our collection of DIY and Hi-Fi Audio Schematics. Feel free to send us your hi-fi audio schematics and we will add them here. If you have built any of these circuits, we would love to hear from you so send us your comments. Many of these diy Audio Books contain schematics.
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