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Can you Hot SWAP 12ax7 in the Decware phono preamp (Read 346 times)
P K
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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
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« Last Edit: 06/01/14 at 14:20:58 by P K »  
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mark58
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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.
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P K
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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!!!!
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Lon
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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.
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« Last Edit: 06/01/14 at 18:38:33 by Lon »  

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P K
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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
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« Last Edit: 06/02/14 at 16:52:01 by P K »  
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Lon
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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.
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Steve Deckert
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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
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