New preamp tubes in the Herbert

  • Thread starter Thread starter Wizard of Ozz
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Wizard of Ozz

Wizard of Ozz

Well-known member
Well, after almost six years of solid trouble-free operation I finally had to replace my preamp tubes in my Herbert. I have to say, that's a record of some sort for me with preamp tubes. I'm lucky to get a 1-2 years tops. Anyway, I followed Peter's recommendation of Ruby 12AX7C5HG+ in V1/V2 and the regular Ruby 12AX7C5 in V3/V4/V5 and splurged a bit ad put another HG+ in the phase inverter spot, and the Herbert is back breathing fire. If anyone is on the fence about spending the extra $$$ on some new preamp tubes, I can testify that you won't be disappointed with the Ruby tubes.
:thumbsup:
 
Wizard of Ozz":e7dosgix said:
Well, after almost six years of trouble operation I finally had to replace my preamp tubes in my Herbert. I have to say, that's a record of some sort for me with preamp tubes. I'm lucky to get a 1-2 years tops. Anyway, I followed Peter's recommendation of Ruby 12AX7C5HG+ in V1/V2 and the regular Ruby 12AX7C5 in V3/V4/V5 and splurged a bit ad put another HG+ in the phase inverter spot, and the Herbert is back breathing fire. If anyone is on the fence about spending the extra $$$ on some new preamp tubes, I can testify that you won't be disappointed with the Ruby tubes.
:thumbsup:
Nice! I asume you ment trouble free operation?
 
Wizard of Ozz":wefoqkke said:
Anyway, I followed Peter's recommendation of Ruby 12AX7C5HG+ in V1/V2 and the regular Ruby 12AX7C5 in V3/V4/V5 and splurged a bit ad put another HG+ in the phase inverter spot, and the Herbert is back breathing fire.
I was informed that the latest incarnation is the 12AX7AC5 HG/HG+ HIGH GRADE A Chinese 12AX7A tube.
Where'd you purchase them from and how much $$$? If you'd rather not publicly disclose, feel free to send me a PM at your earliest convenience.
 
I'd like to try the C7s. They are basically a cryo treated HGC5+
 
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