Sylvanias branded as Magnavox.I have the new V4B And liked it quite a bit but I got curious about tubes. I decided to install Tung-Sol 7591A In the power section it made the amp seem more aggressive at the same time more defined and a perception of it being louder.
Few weeks ago I got a really good deal on a Early 70s V4B with metal knobs. At the owner’s house I thought it actually sounded better than my reissue. After taking it to rehearsal I can barely tell the difference neither can my bandmates. Hats off to Ampeg for the reissue.
I know this blog is focused on the re-issue but I am hoping that somebody here could help me figure out what tubes are in the early 70s V4B. Maybe Jimi or beans and toast?
