MIKELAP
Headphoneus Supremus
Anybody have a 1975 Voskhod 6n23p they would sell me? My Russian connection disappeared on me, I had 3 ordered but he close up shop. Thank you gary
Ever try 6BQ7A sound good and there cheap.
Anybody have a 1975 Voskhod 6n23p they would sell me? My Russian connection disappeared on me, I had 3 ordered but he close up shop. Thank you gary
Hi Mikelap,
since i'am using 12AU7 meaning my setup should be like what you have in the picture(12AX7)?Now i'm running 12AU7 on a 6DJ8 setup did i do any harm to my LD?THANKS!
Exactly, to be honest i dont know . do you have the tube list of the tubes we can use with our different adapters they are on page 267 i printed that tube list theres the 6DJ8 types ,the 12AX7 and the 6SL7octals i always double check to make shure i dont use the wrong tube .
since i'am using 12AU7 meaning my setup should be like what you have in the picture(12AX7)?Now i'm running 12AU7 on a 6DJ8 setup did i do any harm to my LD?THANKS!
I am using an external voltage regulator. We have been told to shut off the LD amp and wait several minutes (5-10Min?) when changing tubes so that the capacitance of the amp dissipates.
Now, when I have an external source to power the tube heaters, do I have to wait, or can I just shut off the voltage regulator and change tubes right away?
No, you have not hurt the LD or the tube. Nothing to worry about.
The only difference between these two configurations is the way pins 4, 5 and 9 are configured. In a 6DJ8 socket, pin 9 is tied to pin 8, the right cathode. But since pin 9 is part of the heater circuit on a 12AU7, you connected the heater to the right cathode! And yes I can imagine that it was very noisy. lol
re
And if you will rewire your socket properly for your 12AU7, it will be much quieter.
I suspect that the reason for this recommendation doesn't have anything to do with the heater circuit. I think it has more to do with the 100 volts or so on the plates. If so, then this recommendation would still be valid. However, this is just a guess on my part.... Perhaps someone else who understands this better will lend his/her advice.....
That said, I have never waited.....
THANK YOU MIKELAP/ARTSI For Posting those schematics and tubes lists!I should be receiving all my parts within next week i ordered it locally this time so hopefully will be here in few days.
So if I'm going to make one for octal driver tubes adapter which PIN is for the separate Power adapter?