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ECC82 12AU7 CV491 CV4003 B329 M8136 7193 TWIN TRIODE VALVE VARIOUS MANUFACTURERS


Manufacturers: Mullard , Brimar , Osram , GEC Valves , Amperex
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The ECC82 was designed as a general purpose medium mu  twin triode. . A special quality version was also produced, for the military bearing the notation CV4003. An anti-microphonic and matched section version designated the E182CC was also made.
 
An amplification factor of 17 is quoted, which is much lower than that for the pin compatible ECC83 at 100.   The glass tube envelope is  approximately 20 mm in diameter and, excluding the B9A button base pins, is approximately 50 mm in height.
 
The ECC82 found use in many hifi amplifiers and guitar amplifiers of the golden valve era and many exotica also have them lurking beneath their covers, this list details just some of them:-
 
 Aguilar DB750 driver tube
 Allen & Heath VF-1 compressor
 Ampeg SVP-PRO Bass Preamp
 Art PRO VLA II comp
 Audio Note CD2
 Audio Note L2 Custom - Response Audio
 Audio Note M1 preamp
 Audio Note M8
 Audio Valve Eclipse preamp
 Bottlehead
 CJ PV10
 Concert Fidelity CF-080LS Hybrid Line Stage Preamplifier
 Conrad Johnson PV 10AL 1993
 David Berning ZOTL Pre One Audio Preamplifier
 Decware Zbox (Unity Gain Stage)
 Eastern Electric DAC
 Eastern Electric Minimax
 Head-Direct EF1 preamp
 Jadis JP-800 preamp
 JJ243 preamp (2007 model)
 Octave (Germany)
 Odyssey Kandela preamp
 Ray Samuels Raptor
 Ray Samuels The Emmeline II, “B-52” fully balanced Headphone amplifier and full functioning preamplifier
 Rogue Audio Cronus
 Rogue audio Perseus + Rogue audio stereo 90,
 ROTH AUDIO MC4 MUSIC COCOON 2009
 Scott Tuner
 Sonny Jr. Four-ten / Customized Harp Amp
 Sun Audio 1000
 VAC PA100/100
 Velleman K4000 kit
 VTL 6.5 preamp
 VTL 7.5 Series II
 VTL TL 7.5 MKII preamp
 Wavac pr-t1 preamp


Current rating is 5.00. Total votes 1.
 
Picture of MULLARD BLACKBURN CV491 MILITARY ECC82
MULLARD BLACKBURN CV491 MILITARY ECC82

On offer we have a beautiful CV491, military specification ECC82. Made for the British Military at Blackburn, this device caries the military date code for April 1970.  It has tested on our AVO VCM163 valve tester as having nominal emission with very close matching for each triode section within the envelope.

Availability: 1 in stock

£27.50 (GBP)
Picture of MULLARD OLD SHIELD YELLOW PRINT ECC82
MULLARD OLD SHIELD YELLOW PRINT ECC82

 On offer today is a Mullard yellow print ECC82 device that tests as 100% emissive for each section within the envelope.

 

Availability: 1 in stock

£28.00 (GBP)
Picture of MULLARD OLD SHIELD WHITE PRINT ECC82
MULLARD OLD SHIELD WHITE PRINT ECC82

 On offer today is a Mullard old shield white print device that tests as 100% emissive for each section within the envelope. It has the etched mullard code B63 B1I1

Availability: Out of stock

£22.00 (GBP)
Picture of MULLARD WHYTELEAFE BOX ANODE CV4003 ECC82
MULLARD WHYTELEAFE BOX ANODE CV4003 ECC82

On offer we have a beautiful box anode CV4003, ECC82. Made for the British Military at Whyteleafe, this device carries the factory code 631 R7D3 a. It has tested on our AVO VCM163 valve tester as having 100% emission with very close matching for each triode section within the envelope 


£40.00 (GBP)
Picture of MULLARD MITCHAM BOX ANODE CV4003 ECC82
MULLARD MITCHAM BOX ANODE CV4003 ECC82

 On offer we have a beautiful box anode CV4003, ECC82. Made for the British Military at Mitcham, this device carries the factory code 631 R6B2 and the military date code XD which equates to APRIL 1967. It has tested on our AVO VCM163 valve tester as having 100% emission with very close matching for each triode section within the envelope

Availability: Out of stock

£37.50 (GBP)
Picture of MULLARD NEW SHIELD WHITE PRINT ECC82
MULLARD NEW SHIELD WHITE PRINT ECC82

On offer today is a Mullard NEW shield white print device that tests as 100% emissive for each section within the envelope. It has the etched mullard code Gf2 B2G1 

Availability: Out of stock

£22.00 (GBP)
Picture of BRIMAR CV4003 MIL SPEC ECC82 FROM 1964
BRIMAR CV4003 MIL SPEC ECC82 FROM 1964

On offer today we have a lovely Brimar CV4003 mil spec ECC82 carrying a date code for June 1964.  It shows nominal emission and good inter valve matching.

Availability: 1 in stock

£27.00 (GBP)
Picture of MULLARD ECC92 MATCHED TRIO X3
MULLARD ECC92 MATCHED TRIO X3

On offer we have a beautiful matched trio of , ECC82. Made at Blackburn for Mullard. These devices have tested on our AVO VCM163 valve tester as having 100% emission with very close matching for each triode section within the envelope.  It is hard to make out the etched factory codes but I think they all are I61 R861 

Availability: Out of stock

£45.00 (GBP)
Picture of BRIMAR WHITE PRINT12AU7
BRIMAR WHITE PRINT12AU7

On offer today is a Brimar 12AU7 white print device that tests as 100% emissive for each section within the envelope.  

 

 

Availability: 1 in stock

£22.00 (GBP)
Picture of MAZDA WHITE PRINT ECC82
MAZDA WHITE PRINT ECC82

On offer today is a MAZDA ECC82 white print device that tests as 100% emissive for each section within the envelope.  

 

 

Availability: 1 in stock

£22.00 (GBP)
Picture of BRIMAR ROCHESTER CV4003 MILITARY ECC82 6067
BRIMAR ROCHESTER CV4003 MILITARY ECC82 6067

On offer today is a Brimar CV4003 white print device that tests as near nominal emissive for each section within the envelope.  

 

 

Availability: 1 in stock

£22.50 (GBP)
Picture of MULLARD NEW SHIELD WHITE PRINT ECC82
MULLARD NEW SHIELD WHITE PRINT ECC82

On offer today is a Mullard NEW shield white print device that tests as 100% emissive for each section within the envelope. 

 

 

Availability: 1 in stock

£22.50 (GBP)
Picture of MULLARD OLD SHELD WHITE PRINT ECC82 12AU7
MULLARD OLD SHELD WHITE PRINT ECC82 12AU7

On offer today is a Mullard old shield white print device that tests as 100% emissive for each section within the envelope.  THE E FACTORY CODE DENOTES HYPERLEC BRIVE MANUFACTURE - A RARE DEVICE INDEED.    The full factory code is 692 E1B.

 

 

Availability: 1 in stock

£24.00 (GBP)
Picture of MULLARD OLD SHIELD WHITE PRINT ECC82
MULLARD OLD SHIELD WHITE PRINT ECC82

On offer today is a Mullard old shield white print device that tests as 100% emissive for each section within the envelope.  

 

 

Availability: 1 in stock

£22.50 (GBP)
Picture of BRIMAR WHITE PRINT12AU7
BRIMAR WHITE PRINT12AU7

On offer today is a Brimar 12AU7 white print device that tests as 100% emissive for each section within the envelope.   

Availability: 1 in stock

£20.00 (GBP)
Picture of BRIMAR WHITE PRINT12AU7
BRIMAR WHITE PRINT12AU7

On offer today is a Brimar 12AU7 white print device that tests as 100% emissive for each section within the envelope.   Smudging to the white print. 

Availability: 1 in stock

£17.50 (GBP)
Picture of BRIMAR WHITE PRINT12AU7
BRIMAR WHITE PRINT12AU7

 On offer today is a Brimar 12AU7 white print device that tests as 100% emissive for each section within the envelope.  Slight smudging of white envelope printing.

Availability: 1 in stock

£17.50 (GBP)
Picture of BRIMAR WHITE PRINT12AU7
BRIMAR WHITE PRINT12AU7

 On offer today is a Brimar 12AU7 white print device that tests as 100% emissive for each section within the envelope.  

Availability: 1 in stock

£23.00 (GBP)
Picture of BRIMAR WHITE PRINT12AU7
BRIMAR WHITE PRINT12AU7

 On offer today is a Brimar 12AU7 white print device that tests as 100% emissive for each section within the envelope.  

Availability: 1 in stock

£23.00 (GBP)
Picture of BRIMAR WHITE PRINT12AU7
BRIMAR WHITE PRINT12AU7

 On offer today is a Brimar 12AU7 white print device that tests as 100% emissive for each section within the envelope.  

Availability: 1 in stock

£20.00 (GBP)
Picture of MULLARD OLD SHIELD YELLOW PRINT ECC82
MULLARD OLD SHIELD YELLOW PRINT ECC82

On offer today is a Mullard yellow print ECC82 white print device that tests as 100% emissive for each section within the envelope.   

Availability: 1 in stock

£27.00 (GBP)
Picture of BRIMAR ROCHESTER CV4003 MILITARY ECC82 6067
BRIMAR ROCHESTER CV4003 MILITARY ECC82 6067

 On offer today is a Brimar CV4003 white print device that tests as 100% emissive for each section within the envelope.  

Availability: 1 in stock

£25.00 (GBP)
Picture of BRIMAR WHITE PRINT12AU7
BRIMAR WHITE PRINT12AU7

 On offer today is a Brimar 12AU7 white print device that tests as 100% emissive for each section within the envelope.   

Availability: 1 in stock

£20.00 (GBP)
Picture of BRIMAR WHITE PRINT12AU7
BRIMAR WHITE PRINT12AU7

On offer today is a Brimar 12AU7 white print device that tests as 100% emissive for each section within the envelope.    

Availability: 1 in stock

£20.00 (GBP)
Picture of PINNACLE NEW BOXED ECC82
PINNACLE NEW BOXED ECC82
Availability: 1 in stock

£12.50 (GBP)
Picture of BRIMAR ROCHESTER CV4004 QUASI-BOX ANODE ECC83 MILITARY DATED 1975
BRIMAR ROCHESTER CV4004 QUASI-BOX ANODE ECC83 MILITARY DATED 1975

On offer today is a Brimar CV4003 white print device that tests as 100% emissive for each section within the envelope.  


£25.00 (GBP)
Picture of MULLARD OLD SHIELD WHITE PRINT ECC82
MULLARD OLD SHIELD WHITE PRINT ECC82

  On offer today is a Mullard old shield white print device that tests as 100% emissive for each section within the envelope. 

Availability: 1 in stock

£24.00 (GBP)
MULLARD OLD SHIELD YELLOW PRINT ECC82

  On offer today is a Mullard old shield yellow print device that tests as 100% emissive for each section within the envelope.

Availability: 1 in stock

£28.00 (GBP)
BRIMAR CVX4003 MILITARY ECC82 CHARCOAL QUASI-BOX ANODE

On offer today is a Brimar white print device CVX4003 military ECC82 that tests as 100% emissive for each section within the envelope.  IT HA DTHECHARCPAL QUASI-BOX ANODE CONSTRUCTION 

Availability: In stock

£27.50 (GBP)
Picture of BRIMAR WHITE PRINT  ECC82
BRIMAR WHITE PRINT ECC82

On offer today is a Brimar ECC82 white print device that tests as 100% emissive for each section within the envelope.  

Availability: 1 in stock

£22.00 (GBP)
Picture of MULLARD 18MM ANODE ECC82 WHITE PRINT OLD SHIELD
MULLARD 18MM ANODE ECC82 WHITE PRINT OLD SHIELD

On offer today a very nice device, 18mm anode, factory code I61 B7J with slightly smudged old shield print.  On test each section gave the following results at  Va = 250V Vg = -8.5V

 
Section 1: Ia = 14 mA; gm = 2.3 mA/V
Section 2: Ia = 14 mA; gm = 2.3 mA/V
 
The specification for a new/100% emission valve is:
 
Ia =10.5 mA; gm = 2.2 mA/V
 
As you can see, these results show a device which exceeds 100% EMISSION specification  with extremely good matching of each triode section within each valve envelope.

 

Availability: Out of stock

£27.00 (GBP)
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