G
guggles
New member
Since tubes are harder to find, and quartets are even harder, is there any issue with using two pair of KT77's? For the preamp is there any issue of using a regular 12ax7 instead of a 7025 in the VH-2?
H
hopkinWFG
Well-known member
From what I know ya two separate pair of are matched at within 5 to 7mA apart they are still able to operate... I would put a lower matched two at outer and hotter matched inner ?
John4021
Well-known member
Try Tubedepot.com
They have a lot in stock.
You won't notice a big difference in running 12AX7's
I have swapped all kinds of different preamp tubes in Herberts. Hagen and VH4.
The amps have plenty of gain so look for something very noise free especially in the V1 position.
T.A.D. pre's seem to be the quietest and way less microphonic that a Chinese 9th
They have a lot in stock.
You won't notice a big difference in running 12AX7's
I have swapped all kinds of different preamp tubes in Herberts. Hagen and VH4.
The amps have plenty of gain so look for something very noise free especially in the V1 position.
T.A.D. pre's seem to be the quietest and way less microphonic that a Chinese 9th
Ventura
Well-known member
www.thetubestore.com - Jon's good people and I've been using them for eons.