Home ECC81

ECC81

by MD0MDI
ECC81 Valve

Quantity in Stock

119

Location

Box E.1

The Mullard ECC81 was designed for RF use and is of medium impedance.

It was used as a frequency changer in five station television sets.

In this application the oscillator triode would be the first to cease working.

The ECC81 also makes an excellent phase splitter in modern audio applications.

 

The thin glass tube envelope is 20 mm in diameter and excluding B9A base pins the length is 47 mm.

B9A Noval
ECC81 Schematic Symbol
ECC81 Pinouts

Pin 1 : Anode (2)
Pin 2 : Grid Number 1 (2)
Pin 3 : Cathode (2)
Pin 4 : Heater
Pin 5 : Heater
Pin 6 : Anode (1)
Pin 7 : Grid Number 1 (1)
Pin 8 : Cathode (1)
Pin 9 : HCT

Specifications

Vf : 6.3v
If : 300mA
Va : 250v
Vg : -2.0v
mAa : 10mA
Ra : 10kΩ

Substitutes

12AT7
CV455
CV8154
CV9859
CV10662
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12AT7WC (Different Rating or Performance)
6060 (Different Rating or Performance)
6201 (Different Rating or Performance)
6679 (Different Rating or Performance)
7492 (Different Rating or Performance)
7728 (Different Rating or Performance)
A2900 (Different Rating or Performance)
B152 (Different Rating or Performance)
B309 (Different Rating or Performance)
B739 (Different Rating or Performance)
CC81E (Different Rating or Performance)
CK6201 (Different Rating or Performance)
CV4024 (Different Rating or Performance)
E2157 (Different Rating or Performance)
E81CC (Different Rating or Performance)
ECC801 (Different Rating or Performance)
ECC801S (Different Rating or Performance)
M8162 (Different Rating or Performance)
QA2406 (Different Rating or Performance)
QA2407 (Different Rating or Performance)
QS2406 (Different Rating or Performance)

Datasheets

ECC81 Ei-RC Datasheet

ECC81 Ei-RC Datasheet

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584.41 KB 14 downloads

ECC81 JJ Electronics Datasheet

ECC81 JJ Electronics Datasheet

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147.21 KB 8 downloads

ECC81 Philips Datasheet 1

ECC81 Philips Datasheet 1

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405.60 KB 7 downloads

ECC81 Philips Datasheet 2

ECC81 Philips Datasheet 2

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98.31 KB 11 downloads

ECC81 RFT Datasheet

ECC81 RFT Datasheet

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96.09 KB 13 downloads

Thanks to the Valve Museum for the information collected here.

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