16-06-2022, 01:57 PM
I added the second valve stage, at the moment it is using a HL210 which seems to have a quite high Ra between 18500 and 23,000 ohms depending on who made it.
as per another thread still awaiting to see if I win a better audio transformer, but it works in principle, here is a video.
https://youtu.be/gn8A07HbqYM
Things to consider if I get the xfmr would be a speaker and a new cabinet if I feel like taking it that far.
Adrian
as per another thread still awaiting to see if I win a better audio transformer, but it works in principle, here is a video.
https://youtu.be/gn8A07HbqYM
Things to consider if I get the xfmr would be a speaker and a new cabinet if I feel like taking it that far.
Adrian
Learning as I go!
Youtube EF91 Valve
Youtube EF91 Valve







