None of those pictures are Bad Boys. The mica structure is a give away that they are not. Bad Boy has rectangular mica with 3 slightly downward turning triangular spikes in each short side of the top mica. None are present on the left tube and the right tube is a round spiked mica.
I've placed a couple orders with this Etsy seller, and all the tubes have been dead silent in my Lyr3 and WA6. You won't find many exotic tubes in his listings, but quite a few mid range options that are worth giving a try.
The plan was simply to try a new tube in my Lyr 3, casually, just something besides the JJ 6SN7 that came with it. Started looking for info on tubes and found this place. So naturally...
I've now received 10 of the tubes I've ordered on the way down the rabbit hole. This is fun. Question. Two of the tubes I ended up with are Tung-Sol 6SN7GTB, angled black T-plates, top D Getter. These seem well regarded, albeit not the most popular or sought after tubes. What I'm really wondering about though, is the branding. I haven't seen either of these mentioned here:
The plan was simply to try a new tube in my Lyr 3, casually, just something besides the JJ 6SN7 that came with it. Started looking for info on tubes and found this place. So naturally...
I've now received 10 of the tubes I've ordered on the way down the rabbit hole. This is fun. Question. Two of the tubes I ended up with are Tung-Sol 6SN7GTB, angled black T-plates, top D Getter. These seem well regarded, albeit not the most popular or sought after tubes. What I'm really wondering about though, is the branding. I haven't seen either of these mentioned here:
Not specifically, I don’t recognise there names as actual tube manufacturers, but it was common practice back then (as is still today) that companies had tubes rebranded for them by other manufacturers. Even among tube manufacturers themselves. Things like the internal structure of the tubes can give a clue as to who really manufactured it. For example, I have learnt that etched dots on the glass is a dead giveaway that they were manufactured by GE.
Due to the Lyr 3 being just a single tube does it make sense to buy a used matched pair? There are a few matched pairs of 6SN7 on CAM that could be worth getting.
Also came across this set. I can't recall if this was mentioned in this thread or the 6SN7 thread but can 6SL7 technically be used in the Lyr 3? Someone mentioned they have higher distortion so it's best not to use them.
I’m looking for a tube that is an all-rounder and works with all kinds of music as well as tv and film. To that end, I have found the new production Tung-Sol 6SN7GTB to be good. I also like the Shuguang CV181-Z (white base black glass). The Z being a little leaner but also having a bit larger stage.
Perhaps you already have the TS, it is one of the possible stock tubes one can get with the Lyr3, depending on what they have at the time.
Shuguang CV181-z is an excellent valve. I rotate it with a PSvane lightbulb, and 15 other tubes, many wartime (WWII) 6FAG military issue (my favorites), including a round plate marked GE, but produced by another manufacturer. I call it my BCowen.
Has anyone seen any good deals on matched pairs lately? I'm looking to buy at least 2 sets of 2 tubes, don't have to be the same.
I just got a Freya and have a set of kenrad vt231 and Sylvania vt231 but since this was a used unit I don't know how long these are going to last but they really sound excellent.
I'm not looking to roll tubes just to get the best additional set's that I can for the eventual burnout of these.
Yeah I guess I should be posting this in the Freya thread. I got lost lol!
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