This is the inside of a behringer vt999. Anyway a second tube could be added? : r/diypedals
Behringer VT999 – Thomann UK
Behringer Vintage Tube Monster VT999 Pedal - Gearspace.com
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BEHRINGER VT999 Classic Vacuum Tube Overdrive
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Behringer VT999 Vintage Tube Monster Classic Overdrive Guitar Effect P – Specialty Traders
What tube for Behringer VT999? - Gearspace.com
Behringer VT999
Behringer VT999 Vintage Tube Monster Overdrive Pedal | Sweetwater
How Behringer Vintage tube monster became a real Vintage tube Monster - YouTube
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Behringer VT999 Vintage Tube Monster Classic Overdrive Pedal - Metro Sound & Music
BEHRINGER VT999 เอฟเฟคกีต้าร์ Vintage Tube Monster Overdrive Pedal
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Music Lab - Behringer VT999 Vintage Tube Monster Classic Vacuum Tube Overdrive | Facebook
