The ECC82/12AU7 is available in many different versions:

• ECC82/12AU7(A), ECC82 and 12AU7 are exactly the same, 12AU7 is the USA name and ECC82 is the name used in Europe. The 12AU7A is the same as 12AU7/ECC82, but in contrary of the 12AU7 also can be used in series heater application, because of controlled heat-up cathode.
• The 12AU7WA and E82CC are the special quality long life versions of the 12AU7 and ECC82.
• The CV491 and B329 are the old military English types. These tubes are very strong, good sounding and made to last a long lifetime.
• The 5814(A), 6189, 6067, CV4003 and M8136 are military special quality versions of the ECC82. These types are made for longer life and lower microphonics. Sometimes they were made with three mica plates, or extra supports inside the tubes.
• 5963 is a computer grade 12AU7. This tube has a cathode especially made to withstand long times in cut-off mode. The maximum anode voltage is slightly lower than the 12AU7/ECC82 (250V against 330V).
• 6680 is the mobile communications type of the 12AU7/ECC82. This tubes is made to withstand about 20% variation of the heating supply without any degradation of specs.
• ECC802(S) is the premium version of the European ECC82. These tubes were made and tested for low microphonics and low noise. The "S"-version is specially selected for low noise.
• 7730 is the premium instrument grade tube made only by CBS/Hytron. This tube has heavily plated gold pins.
• 7316 and ECC186. The 7316 is the Amperex premium version of the 12AU7. It is equivalent to the European ECC186, and electrically identical to the ECC82, except for the maximum cathode to heater voltage which is 90 volts for the 7316 and 180 volts for the ECC82. Many people like the sound of the 7316 / ECC186 very much.
• The 13D8 has exactly the same data as the ECC82. It therefore seems to be an English equivalent to the ECC82. I can't however find any literature on it... Great tube and very rare.

7316 and ECC186

Type	Description	State	Brand	Number in stock	Price each (Euro)
ECC186	o-getter, double thick mica. In white case	NOS	Philips Miniwatt SQ	1	75.00

6189

Type	Description	State	Brand	Number in stock	Price each (Euro)
6189 / 12AU7WA	O-getter on double support, copper grid rods, dated 1965 on box. Very strong and good sounding French made tubes	NOS	RT (RadioTechnique) Picture	3 single 22 pairs	28.00 68.00 (pair)
***** 6189	Grey plates, O getter	NOS	GE	1	27.00
JHS-6189 / 12AU7WA	17 mm plates, grey plates, O getter	NEW	Sylvania	1	27.00
JG-6189 / 12AU7WA	Grey plates, O getter	NEW	GE	1	26.00
JAN-6189W	grey plates, O getter, green label, copper grid rods	NEW	GE	1 pair	52.00 (pair)
6189	17 mm plates, grey plates, O getter	NEW	Sylvania	1	21.00
JAN 6189	17 mm plates, grey plates, O getter	NEW	Sylvania	1	21.00

5814(A)

Type	Description	State	Brand	Number in stock	Price each (Euro)
5814WB	Special version of the 5814. Grey plates, triple mica, O getter	NEW	Sylvania	1	24.00
JG-5814A	Black plates, U getter, triple mica, Picture	NEW	GE	1	23.50
5814A	Black plates, U getter, triple mica	NOS NEW	RCA	1 1	28.50 23.50
JG-5814WA	Grey plates, triple mica, extra support rods	NEW	GE	1	22.00
JHY-5814A	Black plates, U getter	NEW	CBS	1	22.00
CK5814A	Grey plates, O-getter, triple mica	NOS	Raytheon	2	22.00
5814A	Black plates, Extra support rods, O getter, Picture	NOS	RCA	2 single	21.50
JAN 5814A	Grey plates, O getter, 17 mm long plates, green label	NEW	Sylvania	1 pair	49.00 (pair)
5814	Black coated plates, U getter, Picture	NEW	Corvair	2	21.50
JPC-5814A	Black plates, O-getter, extra support rods	NEW	RCA	1	21.50
5814A	Grey plates, U getter, triple mica	NEW	GE	1	21.50
5814A	Grey plates, triple mica, D-getter, made by GE	NOS	Labelled RSD	1	19.00
5814A	Grey plates, triple mica, O-getter, extra support rods, made by GE	NOS	Labelled RSD	1	19.00
5814A *****	Grey plates, O getter	NOS	GE	2	19.00
5814A *****	Grey plates, O getter, Picture	NEW	GE	1	19.00
5814	Black plates, U getter	NEW	???	1	19.00
5814	Black coated plates, U getter	NEW	CBS	1	18.50
5814A	Grey plates, U getter	NEW	CBS	1	18.50
5814	Grey plates, U getter	NEW	GE	1	18.00
5814	Grey plates, U getter	NEW	???	1	18.00
JAN 5814A	Grey plates, O getter, including Spanish import stamp	NOS	Sylvania Picture	2 pairs	39.00 (pair)

ECC82/12AU7(A)

Type	Description	State	Brand	Number in stock	Price each (Euro)
ECC82	O-getter, 17 mm long smooth plates, <> bottom, pulls from unused militairy equipment	NEW	Telefunken picture	3 single 4 pair	54.00 119.00 (pair)
ECC82	O-getter, 17 mm long smooth plates, <> bottom, testing very good	USED	Telefunken	1	28.00
ECC82	17 mm long ribbed plates, <> bottom. Pulls from unused militairy equipment. Singles internally matched	NEW?	Telefunken Picture (all alike)	2 single 8 pairs	45.00 99.00 (pair)
12AU7	17 mm long ribbed plates, <> bottom	NEW	Telefunken	1	48.00
ECC82	17 mm long ribbed plates, <> bottom, faint logo	NEW	Telefunken	3 single	45.00
ECC82	17 mm long ribbed plates, <> bottom, testing good	USED	Telefunken	4	24.00
ECC82	17 mm long ribbed plates, no <>, but in original sealed (opened for testing) Telefunken case	NOS	Telefunken	1	34.00
ECC82	17 mm long ribbed plates, no <>, testing good	USED	Telefunken	2	15.00
ECC82	O-getter, Amperex globe logo, also labelled 12AU7A, made in Holland	NEW	Amperex	1	37.50
ECC82	O-getter, Philips factory codes, Bugle boy logo, testing good	USED	Amperex	1	24.00
ECC82	D-getter, Red Label Brimar 12AU7, BVA, made in England, 17 mm long plates, testing good	USED	Brimar	1	18.00
ECC82	O-getter, Labelled Brimar 12AU7, BVA, 17 mm long plates	NEW	Brimar	1	26.50
ECC82	O-getter, Mullard Blackburn factory codes, labelled Philips	NOS	Mullard	2 single	24.00
ECC82	Shield logo, O-getter, Made in Great Brittain, no pairs	NOS	Mullard	2	24.00
ECC82	Shield logo, O-getter, Made in Great Brittain, testing like NOS	USED	Mullard BVA	1	16.00
ECC82	O-getter, Mullard factory code	NEW	Labelled Philips Miniwatt	1	22.00
ECC82	O-getter, NOS from factory batch packing, Gf8/Triangle6J1 datecodes, picture	NOS	Philips Miniwatt	5 single 19 pair	24.00 59.00 (pair)
ECC82	O-getter	NEW	Philips Miniwatt	3	18.00
ECC82	O-getter	NOS	Philips	4	17.50
ECC82	O-getter	NEW	Philips	3 single 1 pair	17.00 49.00 (pair)
ECC82	O-getter, testing like NOS	USED	Philips	1	11.50
ECC82	O-getter, French production code, no pair	NEW	Labelled Philips Miniwatt Dario	2	19.00
ECC82	O-getter, E-date code, made by Hyperlec Brive in Spain	NOS	Labelled Philips	1	17.50
ECC82 / 12AU7	O-getter, Long 17 mm smooth plates, like Telefunken, made in Yugoslavia	NOS	Labelled IC picture	6 single 2 pair	12.00 29.00 (pair)
ECC82	O-getter, 17 mm long plates	NEW	RSD, Probably Tungsram	1	13.50
ECC82	O-getter, small plates (like normal ECC81), picture	NOS	Tesla (old production)	4 single 12 pair	12.50 29.00 (pair)
ECC82	O-getter, small plates (like normal ECC81), picture	NOS	RFT	4 single 5 pair	12.50 29.00 (pair)
ECC82	Disk-getter, small plates (like ECC81)	NEW	Tesla (old production)	1	12.50
ECC82	O-getter, 17 mm long plates, probably made by Tungsram	NEW	Labelled CEI	4	12.50
ECC82	O-getter, small plates (like ECC81), made by Tungsram, Tesla or RFT, in original Siemens case	NOS	Labelled Siemens	1	9.50
ECC82	Disk-getter, small plates (like ECC81)	NEW	RFT	1	9.50
ECC82	Disk-getter, small plates (like ECC81)	NEW	RSD	1	9.50
12AU7	17 mm ribbed plates, D-getter, clear glass, labelled Dumont	NEW	probably Tung-Sol	1	24.50
JRC-12AU7	17 mm ribbed black plates, D-getter, double thick mica top wafer, matched pair	NEW	RCA	1	24.50
12AU7	17 mm ribbed black plates, D-getter	NOS	Philco	1	24.50
12AU7	17 mm ribbed black plates, D-getter	NEW	???	1	23.50
12AU7A	17 mm ribbed plates, O-getter	NEW	RCA	1	21.50
12AU7A	17 mm ribbed plates, O-getter	NEW	Raytheon	1	21.50
12AU7	17 mm ribbed plates, O-getter	NEW	Sylvania	1	21.50
12AU7A	O-getter	NOS	Rogers	1	20.00
12AU7	O-getter, probably made by RCA or Tungsram, testing like NOS	USED?	Labelled CEI	1 single 1 pair	12.00 26.00 (pair)
12AU7A	O-getter	NEW	GE	1	17.00

ECC802(S)

Type	Description	State	Brand	Number in stock	Price each (Euro)
ECC802S	Long plates, extra stiffening on plates, copper grid rods, double thick mica, O-getter. NOS Tesla, not new production	NOS	Tesla picture	6 single 15 pair	32.50 72.00 (pair)

5963

Type	Description	State	Brand	Number in stock	Price each (Euro)
USN CHS 5963	17 mm long plates, D-getter, gold text, pair testing 10/10 and 11/9 mA	NOS	Sylvania gold brand	1 pair	88.00 (pair)
5963	17 mm long plates, D-getter	NOS	RCA	5 single 4 pair	18.00 44.00 (pair)
5963	17 mm long plates, O-getter	NEW	RCA	4 single 7 pair	17.00 40.00 (pair)
CK5963	Grey plates, O getter	NOS	Raytheon	5	17.00

CV491 and B329

Type	Description	State	Brand	Number in stock	Price each (Euro)
CV491	KB/AD date codes, 6920, made in England, internally matched	NEW	???	1	49.00

6067

Type	Description	State	Brand	Number in stock	Price each (Euro)
6067	Black plates, D-getter, made in USA, Gammatron, internally matched	NOS	Heintz & Kaufman	1	35.00

12AU7WA and E82CC

Type	Description	State	Brand	Number in stock	Price each (Euro)
E82CC	O-getter, double thick mica, Siemens factory codes	NOS	Siemens	1	44.00

CV4003

None in stock at the moment, please check back soon

13D8

None in stock at the moment, please check back soon

6680

None in stock at the moment, please check back soon

7730

None in stock at the moment, please check back soon