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ecc82 5687 preamp! audionote | diyAudio
https://www.diyaudio.com/community/threads/ecc82-5687-preamp-audionote.231376/
Hi all, can I sub 6sn7 in place of ecc82 in this schematic? i have this as outputstage in my dac and it sounds very good, but i have plenty of 6sn7's id like to use. do i need to change the plate and kathode resistors of the ecc82s to accommodate the 6sn7's? the b+ voltage is 260v thanks fellas
L3 Line C-Core Pre-amp – ANK Audio Kits
https://ankaudiokits.com/product/pre-amp-l3/
Our Line Pre-amplifier using a the 5687 circuit along with triple C-Core transformers and M2 Power Supply 6×5 ecl82 – We use AudioNote film caps on the power supply. Parts Compliment includes: The standard version has the following: ALPS pot; Triple C-Core output transformers (RCA only, balanced output) Audio Note Tin Foil Film Signal Capacitors
Tube Linestage preamp… the beginning | D a r k L a n t e r n
https://darklanternforowen.wordpress.com/2014/01/21/tube-linestage-preamp-the-beginning/
In audio, the 5687 was chosen by Hiroyasu Kondo for his legendary Audio Note Ongaku amplifier (and other Kondo designs). Pretty good credentials then. The 5687 does not deliver high gain (mu of ~17) but a Linestage does not need much Gain, only around 20dB (10x) will do. The 5687 was reportedly clean sounding and low in microphonics.
Best 5687 Tubes - ACA
http://www.aca.gr/index/hiend/hiendArticles?row=2609
The 5687 was known by Mr. Hiroyasu Kondo of Audio Note Japan.. Best of all 5687’s are considered the Gold Brand - Gold Pin NOS Sylvania GB5687 (GB = Gold Brand) with next to NOS Tung Sol with ribbed plates circa 1950-1960 or black …
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