12AX7AECC83

Telefunken

Branded MazdaBelvu

ECC83, 12AX7A

Telefunken

Branded Lafayette

12AX7A, ECC83, 7025

Ei

Branded Philips Ecg

ECC83, 12AX7, MC0

Siemens

Branded Tungsram

ECC83

Brimar

Branded Arkay

ECC83, 12AX7, I63

Branded Mullard

ECC83, MC6

Branded Siemens

ECC83

Branded Telefunken

ECC83, MCA

Valvo

Branded Tekade

ECC83, MC1

Valvo

Branded PhilipsMiniwatt

5U4G

Branded MazdaBelvue

ECC83

Branded Mazda

12AU7

Branded Mazda

12AX7A

Branded Mazda

12AX7

Branded MazdaMil

ECC83

RFT

Branded Mazda

12AU7A, ECC82

Branded Mazda

6L13, ECC83

Brimar

Branded Mazda

ECC83

Ei

Branded Mazda

12AX7A, ECC83

Branded Belvu

12AX7SH

Branded Belvu

12AX7S

Branded Belvu

12AT7WA

Branded MazdaBelvu

12AX7A, ECC83

Telefunken

Branded Belvu

12AX7A, ECC83

Branded Belvu

GZ34

Mullard

Branded Belvu

ECC808

Branded Belvu

ECC83

Branded Belvu

6211

Telefunken

Branded Zaerix

12AX7

Telefunken

Branded Gap / R Computo

12AX7WA

Telefunken

Branded Itt Lorenz

ECC83, 12AX7

Telefunken

Branded The Fisher

12AX7A

Telefunken

Branded Mazda

12AX7A, ECC83

Telefunken

Branded Belvu

12AX7, ECC83

Telefunken

Branded Sonotone

12AX7

Telefunken

Branded Leeds & Northrup

ECC83

Telefunken

Branded Dynaco