5Y3 rectifier tube glows blue...Normal?

cbl117
cbl117 Posts: 285
edited March 2007 in Electronics
I have a question reguarding a guitar amplifier. when I turn on the amp the rectifier tube glows blue for about a second. After a second the blue glow disappears. The amp sounds fine and everything functions. Is this tube bad? The amp was just serviced, and the tube is a NOS 5Y3.
2 Channel

Vandersteen 3a Sigs
Music Reference RM-200
Hovland HP-100
VPI Scout w/ Benz Ace
Rotel RCD-1072
Cardas Golden Reference Speaker Cables
Cardas Golden Reference Interconnects
Cardas Golden Power Cords
PS Audio UPC-200HB
Black Diamond Racing Isolation
Post edited by cbl117 on
· Share on FacebookShare on Twitter

Comments

  • Ricardo
    Ricardo Posts: 10,636
    edited March 2007
    I've seen many tubes glow blue continuously; never thought it was a problem. And looks cool.
    _________________________________________________
    ***\\\\\........................... My Audio Journey ............................./////***

    2008 & 2010 Football Pool WINNER
    SOPA
    Thank God for different opinions. Imagine the world if we all wanted the same woman
    · Share on FacebookShare on Twitter
  • Dennis Gardner
    Dennis Gardner Posts: 4,861
    edited March 2007
    It will most likely be okay, but the life of this rectifier tube may be shortened. BTW, no real reason to use NOS for the 5Y3. You probably have 12 AX7s and 6L6GCs in the same amp and they make more difference in the sound than the rectifier does.
    HT Optoma HD25 LV on 80" DIY Screen, Anthem MRX 300 Receiver, Pioneer Elite BDP 51FD Polk CS350LS, Polk SDA1C, Polk FX300, Polk RT55, Dual EBS Adire Shiva 320watt tuned to 17hz, ICs-DIY Twisted Prs, Speaker-Raymond Cable

    2 Channel Thorens TD 318 Grado ZF1, SACD/CD Marantz 8260, Soundstream/Krell DAC1, Audio Mirror PP1, Odyssey Stratos, ADS L-1290, ICs-DIY Twisted , Speaker-Raymond Cable
    · Share on FacebookShare on Twitter
  • cbl117
    cbl117 Posts: 285
    edited March 2007
    Dennis Gardner wrote:
    It will most likely be okay, but the life of this rectifier tube may be shortened. BTW, no real reason to use NOS for the 5Y3. You probably have 12 AX7s and 6L6GCs in the same amp and they make more difference in the sound than the rectifier does.

    yep I have one 12ax7 and one 6v6. The amp I'm talking about is a vintage fender champ. neat little amp, single ended 5 watt monster.
    2 Channel

    Vandersteen 3a Sigs
    Music Reference RM-200
    Hovland HP-100
    VPI Scout w/ Benz Ace
    Rotel RCD-1072
    Cardas Golden Reference Speaker Cables
    Cardas Golden Reference Interconnects
    Cardas Golden Power Cords
    PS Audio UPC-200HB
    Black Diamond Racing Isolation
    · Share on FacebookShare on Twitter
  • Dennis Gardner
    Dennis Gardner Posts: 4,861
    edited March 2007
    I like vintage Fender amps. I have 2 Twin Reverbs in the shop for repair as we speak.
    HT Optoma HD25 LV on 80" DIY Screen, Anthem MRX 300 Receiver, Pioneer Elite BDP 51FD Polk CS350LS, Polk SDA1C, Polk FX300, Polk RT55, Dual EBS Adire Shiva 320watt tuned to 17hz, ICs-DIY Twisted Prs, Speaker-Raymond Cable

    2 Channel Thorens TD 318 Grado ZF1, SACD/CD Marantz 8260, Soundstream/Krell DAC1, Audio Mirror PP1, Odyssey Stratos, ADS L-1290, ICs-DIY Twisted , Speaker-Raymond Cable
    · Share on FacebookShare on Twitter
  • cbl117
    cbl117 Posts: 285
    edited March 2007
    Nice amps! I've had my heart set on a deluxe reverb or a tweed princeton. Nothing beats vintage fender grit.:D
    2 Channel

    Vandersteen 3a Sigs
    Music Reference RM-200
    Hovland HP-100
    VPI Scout w/ Benz Ace
    Rotel RCD-1072
    Cardas Golden Reference Speaker Cables
    Cardas Golden Reference Interconnects
    Cardas Golden Power Cords
    PS Audio UPC-200HB
    Black Diamond Racing Isolation
    · Share on FacebookShare on Twitter
  • Ricardo
    Ricardo Posts: 10,636
    edited March 2007
    A bit more info; it is normal.

    http://members.aol.com/larrysb/blue_glow.html
    _________________________________________________
    ***\\\\\........................... My Audio Journey ............................./////***

    2008 & 2010 Football Pool WINNER
    SOPA
    Thank God for different opinions. Imagine the world if we all wanted the same woman
    · Share on FacebookShare on Twitter