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Thread: HR Deville V3

  1. #1
    Forum Member brianf's Avatar
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    HR Deville V3

    What does the V3 Do?

    I think V1 is clean V2 Gain V3?

    Thanks

    brianf
    Oh Man!!! I never knew Fender made amps too!!!

  2. #2
    Forum Member Tonesnob's Avatar
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    I have a 4x10 HR Deville

    I'm not sure i understand the question... (i'm dumb btw). Are you asking about tube placement or what the "channels" do?
    Last edited by Tonesnob; 08-02-2002 at 10:44 AM.
    ~Gregory

  3. #3
    Forum Member brianf's Avatar
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    To: Tonesnob

    Sorry, I should have been more clear. I was refering to preamp tube positions. I don't know what the third one is for. I'm pretty sure 1 is clean and 2 is the gain channel.

    Thanks for any help..
    brianf
    Oh Man!!! I never knew Fender made amps too!!!

  4. #4
    Forum Member Riscchip's Avatar
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    Originally posted by brianf
    To: Tonesnob

    Sorry, I should have been more clear. I was refering to preamp tube positions. I don't know what the third one is for. I'm pretty sure 1 is clean and 2 is the gain channel.

    Thanks for any help..
    brianf
    Probably a phase inverter. But I'm no expert.
    --Carson

    http://www.riscchip.com

  5. #5
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    Tim C.'s Avatar
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    Brianf,

    I just reviewed the schematic for the HR DeVille and V3A and V3B are in deed the phase inverter.

    Tim C. :)

  6. #6
    Forum Member brianf's Avatar
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    To Tim C.

    Thanks Tim C. You mention V3A and V3B though. What is V3B?

    Thanks again!

    brianf
    Oh Man!!! I never knew Fender made amps too!!!

  7. #7
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    A 12AX7 has two tubes in one bottle and each half is designated with an A and B on the schematic.

    Think of V3 in your amp as the phase inverter.

    In some amps one half of a 12AX7 tube might be for vibrato and the other half might be gain for another section of the amp. Every amp is different.

    Your amp has what is known as a long tail pair phase inverter which requires the use of the entire tube, both the A and B sides.

    Tim C. :)

  8. #8
    Forum Member brianf's Avatar
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    Oh Tim C.

    My head hurts now. I use 12AT 7's though. When I first got the amp there was too much gain. I put 12AT7's across the board. Should I only be using it in V2?

    Thanks again.

    brianf
    Oh Man!!! I never knew Fender made amps too!!!

  9. #9
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    You can use a 12AT7 safely anywhere that you would normally use a 12AX7.

    The 12AT7's amplification factor is 60 as compared the the 12AX7 with a gain of 100. The 12AT7 will pass more current than a 12AX7 and that's a good thing.

    Tim C. :)

  10. #10
    Forum Member brianf's Avatar
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    Thanks Tim!!!

    brianf
    Oh Man!!! I never knew Fender made amps too!!!

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