I picked up a pack of 10 zeners, 11V @ 5A ea, for a little over $5 on eBay. I use two of them and my specs are now just right.
Ad Widget
Collapse
Announcement
Collapse
No announcement yet.
Brand new 5E3 gets its first power up...(long)
Collapse
X
-
So how's the sound now, mbratch? Did you adjust your cathode resistor to bring you to around 12 watts/tube? I found that with the RCA 6V6's I have in there that the 275 ohm cathode resistor made mine average 12.05 watts/tube. That's close enough for rock&roll as they say!
I'm curious to see if you lost any chime or brilliance. I didn't in my case. Hope yours sounds great too! I called Mojo yesterday and my cab is due to ship today or tomorrow, so I'm closing in on hearing it in its cab with the Blue.Thermionic vacuum devices rule.
Comment
-
Originally posted by PremiumPlus View PostSo how's the sound now, mbratch? Did you adjust your cathode resistor to bring you to around 12 watts/tube? I found that with the RCA 6V6's I have in there that the 275 ohm cathode resistor made mine average 12.05 watts/tube. That's close enough for rock&roll as they say!
I'm curious to see if you lost any chime or brilliance. I didn't in my case. Hope yours sounds great too! I called Mojo yesterday and my cab is due to ship today or tomorrow, so I'm closing in on hearing it in its cab with the Blue.
I did raise the cathode resistor a bit, 300 ohms, to get in the right ball park balancing plate voltage and dissipation. I have a vintage Sylvania 5Y3 which runs just a smidge hotter than the couple of other vintage 5Y3's I have. I also have a new Sovtek 5Y3 which is just out of the ball park on voltages, more than a 5R4 or a 5V4, and close (not quite) like a 5AR4. So I'm sticking with my vintage 5Y3's. And I am running JJ 6V6S in there right now.
I think when I had tries this before, I didn't make a suitable adjustment to the cathode resistor and my plate voltage was too far off, which negatively impacted the sound.
I think my Celestion Blue is showing up today via UPS. More tonal tests ahead...
Comment
Comment