mivarpet Posted July 5, 2020 Share Posted July 5, 2020 Item: Valve Buffer Board 6N3 x 2 Price Range: FREE Item Condition: Used Location: Perth (SOR) Extra Info: I bought two of these valve buffer boards hoping to make a valve buffer for my system. Current pricing on eBay is USD25.64 (AUD 37.50) each - https://www.ebay.com/itm/6N3-2-5670-6H3-tube-preamplifier-assembled-board-Hifi-buffer-/281371898723 There's a good thread on diyaudio also on improving the board - https://www.diyaudio.com/forums/tubes-valves/238521-cheap-6n3-buffer-amp.html When I powered one up it had some hum (on my oscilloscope) so I don't know if this was a valve thing, shielding, or power supply issue. I had a valve headphone amp a while ago and it had hum that disappeared after a few days burn in, so perhaps it could be that. Valves are a black art to me, so I'm not sure. Unfortunately, I don't have time to research, so best to move them on. I never put the boards into action, so I daresay it's simple for someone skilled in valves and has a spare voodoo doll. Preference is given to a local person / pickup but I will ship at the buyers cost if there are no local takers after a few days. Please don't forget to report your post as FOUND when possible. (You can now delete this text). Link to comment Share on other sites More sharing options...
unclekanus Posted July 5, 2020 Share Posted July 5, 2020 I'd be happy to pay postage for these if you don't get a taker locally. Link to comment Share on other sites More sharing options...
Pops110 Posted July 5, 2020 Share Posted July 5, 2020 I’ll grayit if still available. Will send a pm. Link to comment Share on other sites More sharing options...
mivarpet Posted July 5, 2020 Author Share Posted July 5, 2020 Spoken for now with collection later today Link to comment Share on other sites More sharing options...
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