Welcome, Guest. Please Login or Register
Decware Audio Forums
03/29/24 at 00:18:16 




Pages: 1
Send Topic Print
Can you Hot SWAP 12ax7 in the Decware phono preamp (Read 6881 times)
P K
Seasoned Member
****




Posts: 219
Can you Hot SWAP 12ax7 in the Decware phono preamp
06/01/14 at 14:19:48
 
Can you hot swap the 12ax7 in the Decware phono preamp ZP3 (for tube rolling)?

Thanks,

Peter
Back to top
 
 
  IP Logged
mark58
Seasoned Member
****




Posts: 5647
Re: Can you Hot SWAP 12ax7 in the Decware phono preamp
Reply #1 - 06/01/14 at 14:55:37
 
I don't know but am interested if you can.  I tube roll often in my ZP3 and do it with it off and cold at the beginning of a listening session.  Mark.
Back to top
 
 

"The man that hath no music in himself, nor is not moved with the concord of sweet sounds, is fit for treasons, deceptions, and spoils;
The motions of his spirit are dull as night and his affections dark as Hell. Let no such man be trusted." William Shakespeare
  IP Logged
P K
Seasoned Member
****




Posts: 219
Re: Can you Hot SWAP 12ax7 in the Decware phono preamp
Reply #2 - 06/01/14 at 18:11:12
 
I Hope Steve D. will respond!!!!
Back to top
 
 
  IP Logged
Lon
Seasoned Member
****


"Love without
guts is
worthless!"
Philip K. Dick

Posts: 23310
Re: Can you Hot SWAP 12ax7 in the Decware phono preamp
Reply #3 - 06/01/14 at 18:38:03
 
You can hot swap it if the ZP3 is powered off. It has been done. Probably not smart to do so, but I have done it and not harmed the preamp.
Back to top
 
 

HR-1,ZTPRE,ZBIT,ZROCK2,SEWE300B,CSP3-25mod,Taboo MkIV;Rega RP3 all GrooveTracer mods;PSAudio:PST+DSD,P15,NPC,PowerBases,AC-12 pwr cbls,Reference spkrcbls;Mapleshade SamsonV3;VooDoo:Cremona+Amati interconnects, IsoPods; headphones:Sennheiser HD800S,ZMF Ori,Oppo PM1
  IP Logged
P K
Seasoned Member
****




Posts: 219
Re: Can you Hot SWAP 12ax7 in the Decware phono preamp
Reply #4 - 06/02/14 at 16:51:34
 
Now I am confused, I thought "HOT SWAP" was to exchange tubes while the phono preamp was still turned on.

The  ZP3 has two levels of being turned off, standby mode, current to heaters? or off.

I DO NOT UNDERSTAND YOUR REPLY.

Please advise.

Peter
Back to top
 
 
  IP Logged
Lon
Seasoned Member
****


"Love without
guts is
worthless!"
Philip K. Dick

Posts: 23310
Re: Can you Hot SWAP 12ax7 in the Decware phono preamp
Reply #5 - 06/02/14 at 18:13:03
 
Then I misunderstood you. Personally I would not remove the tube unless the ZP3 was turned off. That's just me. It may not be harmful, but it's easy to just turn the component off and remove the hot tube, install another, turn back on.
Back to top
 
 

HR-1,ZTPRE,ZBIT,ZROCK2,SEWE300B,CSP3-25mod,Taboo MkIV;Rega RP3 all GrooveTracer mods;PSAudio:PST+DSD,P15,NPC,PowerBases,AC-12 pwr cbls,Reference spkrcbls;Mapleshade SamsonV3;VooDoo:Cremona+Amati interconnects, IsoPods; headphones:Sennheiser HD800S,ZMF Ori,Oppo PM1
  IP Logged
Steve Deckert
Administrator
*****


If the 1st watt
sucks why continue?

Posts: 6234
Re: Can you Hot SWAP 12ax7 in the Decware phono preamp
Reply #6 - 06/02/14 at 19:04:09
 
Technically you can remove a hot tube while the unit is on without damaging the it, however you will often get a hellacious pop from your speakers if you don't have the volume all the way down.  I can't speak for what it will do to the tube itself.  I would follow Lon's advise on this one!

-Steve
Back to top
 
 
WWW   IP Logged
Pages: 1
Send Topic Print