Author Topic: 12FQ7 Tube  (Read 2211 times)

Offline Emil

  • Audio Neurotic
  • *****
  • Posts: 1088
12FQ7 Tube
« on: April 15, 2016, 02:15:29 PM »

I'm thinking of replacing them in my  20 something year old Quicksilver 300B so I did a search for replacements and have found that they are hard to find. I have a feeling that they may have never been replaced so I contacted Quicksilver. He wants $60 a pair and told me the only way to know if they need replacing is to replace them and listen.

What would a weak 12FQ7 input or any other input tube sounds like?


"Today I didn't even have to use my A.K.
I got to say it was a good day"
    --Ice Cube

Offline rollo

  • Industry Participant
  • *
  • Posts: 6727
  • Rollo Audio - Home demo the only way to know
Re: 12FQ7 Tube
« Reply #1 on: April 15, 2016, 05:31:03 PM »
   Noisey, grainy, dull, lifeless. Get RCA 12FQ7 from Andy at Vintage Tube service and be happy. He has the best.

contact me  at or visit us on Facebook
Lamm Industries - Aqua Acoustic, Formula & La Scala DAC- INNUOS  - Rethm - Kuzma - QLN - Audio Hungary Qualiton - Fritz speakers -Gigawatt -Vinnie Rossi,TWL, Swiss Cables, Merason DAC.