Here is a selection of, mostly European, double triodes. They are
all 9-pin miniature, Noval or B9A based.
ECC81/12AT7 Types 6211, CV4024, ECC81,
M8162
ECC82/12AU7 Types
ECC83/12AX7 Types 12AD7, 12AX7, 12AX7WA,
7025, CV4004, ECC83, SF6057
ECC84/6CW7
ECC85/6AQ8 Types
ECC88/6DJ8 Types
ECC180/6BQ7A
ECC189/6ES8
ECC801
ECC804/6GA8
ECC807
5963
Factory codes have been included
for the Mullard/Philips valves. They can be seen clearly on the Dutch
ECC82
(below, third column). A key to these codes is
here
Label: Mullard |
Label: Mullard Type : ECC85 Valve Code : tU Factory Code : B |
Label: ??? Type : ECC85 Remarks : Unknown make |
Label: Brimar Type : E88CC |
Label: Mullard Type : E88CC Valve Code : 7L Factory Code : R |
Label: Mullard |
Label: Mullard Type : CV5331/ECC189 Valve Code : -- Factory Code : /| |
Label: Zaerix Type : ECC801 |
Label: Mazda |
Label: Brimar |
Label: RCA Type : 5963 |