7025WA

TAD

selected preamp tube (RT080)

ECC83WB

TAD

selected preamp tube ECC83WB (RT093)

7025WBHG

TAD

selected preamp tube 7025WB high grade (RT093-HG)

7025/E83CCR

TAD

selected preamp tube 7025/E83CC Redbase (RT-7025)

7025/E83CC

TAD

selected preamp tube 7025 / E83CC (RT030)

ECC83PSVA

TAD

selected preamp tube PSVANE ECC83 (PS-ECC83)

ECC83PSVSYM

TAD

selected preamp tube PSVANE ECC83

ECC83Cz

TAD

selected preamp tube (RT003)

12AX7WAR

TAD

selected preamp tube (RT006)

12AY7

TAD

selected preamp tube 12AY7 / 6072a (RT007)

5751

TAD

selected preamp tube (RT009)

5751HG

TAD

selected preamp tube (RT090)

ECC81/AT7CZ

TAD

selected preamp tube ECC81/12AT7-Cz balanced (RT052)

12AT7WTCNOS

TAD

selected preamp tube 12AT7WC NOS-selection balanced (RT004)

12AU7

TAD

selected preamp tube 12AU7 / ECC82 (RT005)

12AU7WA

TAD

selected preamp tube 12AU7WA / E82CC (RT065)

12BH7A

TAD

selected preamp tube (RT046)

12DW7

TAD

selected preamp tube 12DW7 / 7247 (RT044)

EF86

TAD

selected preamp tube EF86 / 6267 (RT-EF86)

6922

TAD

selected preamp tube 6922 / E88CC (RT-6922)

6SN7GT

TAD

selected preamp tube (RT980)