Arduino digital multi-mode arc extinguishing support HFBR-1414 (no music)
Description

  • Function:


    note:

      This one kit package requires you to weld it yourself (no vacuum tube)


    6sn7.6n8p is compatible with 12au7 by default (can be configured with 9-pin gallbladder using 12au7)


    Transformer secondary voltage requirements. Single 12 to 15v range 2a. Dual 250 to 300v range, greater than 50ma.


    Preamp board PCB Size:   200mm*205mm  
    PSU board  PCB Size:  200mm*95mm
    Works voltage:     280V-0-280V ( 250V-300V are all ok. currect about 60ma).   0-AC12V   (12-15V is ok. Currect about 2A)

    Package List:
    1x6SN7 6N8P Preamp Diy Kit
    1x power supply kit

    1xsignal selection DIY 

    If you have any questions, please contact us in time, we will help you deal with the problem for the first time.

Shipping
  • Item will be shipped within 24 -48 hours after full payment is received.
  • Normally the shippment to worldwide is used to take 15 to 30 business days, exclude Sat & Sun.
Payment
  • We accept PayPal only.
  • Payment must be received in 7 business days of auction closing.
  • Please leave note for your special request (e.g. Colors or Size) in ebay note when you pay the order.
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Contact Us
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  • We greatly appreciate your POSITIVE feedback. Please do NOT leave negative or neutral feedback without any contact.
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