12AX7

ECC83, 12AX7, F91

Mullard

Branded Heat

ECC83, 12AX7, I61

Mullard

Branded Daystrom

ECC83, 12AX7, MC1

Mullard

Branded Dynaco

12AX7

Mullard

Branded Webcor

12AX7, CV492, MC1

Mullard

ECC83, 12AX7, I63

Mullard

Branded The Fisher

ECC83, 12AX7, I63

Mullard

Branded Telefunken

ECC83, 12AX7, F91

Mullard

Branded Voice Of Music

12AX7, ECC83

Philips

Branded Hammond

12AX7

Philips

Branded Rogers

12AX7, ECC83, I66

Philips

Branded Amperex

12AX7

Philips

Branded Rogers

ECC83, 12AX7, MC2

R/T La Radiotechnique

Branded DarioMiniwatt

12AX7

RCA

Branded Kentron

7025, 12AX7

RCA

Branded Magnavox

7025, 12AX7

RCA

Branded Sonotone

ECC83, 12AX7

RFT

Branded Siemens-Röhre

12AX7

RFT

Branded CEI

12AX7, ECC83

RFT

Branded Zaerix

12AX7

Raytheon

Branded Cornell

ECC83, 12AX7, MC0

Siemens

Branded Tungsram

12AX7

Sylvania

Branded Rad-Tel

12AX7

Sylvania

Branded Zenith

12AX7

Sylvania

Branded Setchell Carlson