Here you go, 6A is the code for the CV4025 / M8079.
CV4025 @ The Valve Museum
R is the Mullard Mitcham factory code. And the 7L is the date code.
CV4025 @ The Valve Museum
R is the Mullard Mitcham factory code. And the 7L is the date code.
Easier if the photo showed a vertical front -face view but Alan is probably right.
Used by myself on RF equipment repair/replacement--American versions had a 12AL5 ( 12 Volt heaters ) usually used in very small US plastic -series connected heaters-no mains transformer radios. .
Used by myself on RF equipment repair/replacement--American versions had a 12AL5 ( 12 Volt heaters ) usually used in very small US plastic -series connected heaters-no mains transformer radios. .
The 'AL5 is good for ratio detectors and Foster-Seeley discriminators.
FWIW, I made use of the little dual diode in the hybrid bridge negative rail of "El Cheapo". Enough current handling capability is present in that hybrid bridge to support the needs of a RCA phono preamp.
FWIW, I made use of the little dual diode in the hybrid bridge negative rail of "El Cheapo". Enough current handling capability is present in that hybrid bridge to support the needs of a RCA phono preamp.
