Mr.Ian
23-09-2025, 09:57
My hifi clear out continues, my collection of spare valves is now up for sale. summary at front, details after:
• NOS GEC KT66 – 1971 - £150
• NOS GEC A2900 ( ECC81) – SUPER RARE - £400
• 2 x NOS Mazda ECC81 £40/pair
• Mullard Thomas Organ 12AU7 (ECC82) - £50
• Thomas Organ 12AU7 (Sylvania ?) (ECC82) - £25
• NOS Mullard M8137 CV4004 (ECC83) - £100
• NOS Mullard E88CC - £45
• NOS Mullard E88CC - Matched Pair - £120
• NOS Brimar E88CC CV2492 - £30
• Golden Dragon E88CC x 2 - £15 for the pair
• Sovek 6922 £20 for 2 (3 pairs available no branding)
• Russian 6H8C – 6N8S - £10
• NOS Brimar foreign 6V6GT 4 available - £30 each
• NOS Brimar England 6V6GT 4 available - £30 each
• Brimar 6V6GT - £20
• Brimar CV511 (2 available) - £10 each
• 2x NOS Mullard (Valvo) EF86 £100/pair
• NOS Mazda EF86 £20
• Mullard EF86 £10
• Marconi U52 / 5U4G - £200
• Mullard GZ32 - £50
• GEC U54 - £40
• GEC U54 - £25
More details below
=====================================
NOS GEC KT66 – 1971 - £150
original box – dirty and worn
made in UK
7142 Z = Hammersmith 1971
clear glass
Brown base
double “O” getters types
Twin halo at base
73ma
NOS GEC A2900 – SUPER RARE - £400
(ECC81)
dark blue GEC box - tatty
Made in England
7010 date code Oct 1970 Z lot 83
black Welded plate
Disc Getter
Box good condition but not mint
2 x NOS Mazda ECC81 £40/pair
Tested at Wam Show
Tube 1 = 9.6/6.0 11.5/6.5
Tube 2 = 12/6.2 12/7.0
BVA made in England, probably Mullard
date codes unclear
back plates
halo getter
Mullard Thomas Organ 12AU7 - £50
(ECC82)
Mullard made in UK
Long grey plates
Square getter
bought good used – from tube rolling days
Thomas Organ 12AU7 - £25
(ECC82)
Made in USA
Copper grid post
short grey plate square getter – thought to be Sylvania
bought good used – from tube rolling days
NOS Mullard M8137 CV4004 - £100
(ECC83)
red/black box good condition
grey boxed plate with halo getter
old white logo
made in Great Britain
R7G4 date code = Mullard Mitcham July 1967
NOS Mullard E88CC - £45
Red black box – poor condition
Gold pins
White label larger font
Short grey plate
Circular getter
R9C2 I Mullard Mitcham Match 1962
Tested at a Wam Show
12.5/13.3
12/12.8
NOS Mullard E88CC - Matched Pair - £120
orange box
made in great Britain
stylised logo
gold pins
short grey plates
8 shot getter
Tested Wam Show
date codes R1 I1
Tube 1 = 10/14 9.5/14
Tube 2 = 11/14 10.5/14
NOS Brimar E88CC CV2492 - £20
red yellow box
gold pins
Foreign made
silver support saucer getter
short grey plates
Tested Wam show : 15/14 13.5/14
Golden Dragon E88CC x 2 - £15
6DL8 equivalent
1 in original box
1 in Tenix box
bought new by me in the 1980s from PM components used briefly in an AI500 before I sold the amp
Sovek 6922 £20 for 2
3 pairs available
Removed from my Graff 13.5b2 when I upgraded to Reflector 6N23P-EB
02/09 made in Russia x 1
01/02 made in Russia x 5
Russian 6H8C – 6N8S - £10
Russian equivalent of the 6N7-GT
used in a pre-amp in my tube rolling days
=================================
NOS Brimar 6V6GT - £30 each
4 available
Marked foreign USA suspected
Red yellow box – box fair condition
NOS Brimar 6V6GT - £30 ech
4 available
Made in England
Red yellow box – box fair condition
(1 box marked £1.26 + PT)
Brimar 6V6GT - £20
Box open both ends suspect NOS but not guaranteed
1 available
Made in England
Red yellow box – box poor condition
Brimar CV511 - £10 each
History unknown
2 available
no boxes
Not tested
-------------------------------------------------
NOS Mullard (Valvo) EF86 £100/pair
2 available
Blue black pink box good condition
early white logo
mesh
D0F4 – Valvo Hamburg June 1970
NOS Mazda EF86 £20
1 available
price new 18 Shillings + purchase tax
Mullard EF86 £10
in Mazda box
1 available
yellow logo
Made in Great Britain
smooth plate
D0F4 – Valvo Hamburg June 1970
blue boxe
bought good used – from tube rolling days
-------------------------------------------------
Mullard GZ32 - £50
Bought as new used by me in 2002 from Valve and Tube supplies IoW
tested 100% 16/06/02 - been in cupboard ever since
white box
black base
R71 B5K – code = Blackburn November 1965
Grey plates
Rectangular bottom getter
Marconi U52 / 5U4G - £200
Bought as good used – spare back up 20 years ago
Tested “good” at the Wam Show
LD 4
Clear Glass
Curve Top
Black plate
Bottom square getter
GEC U54 - £40
((GZ37 53KU)
Bought as v good used – spare back up 20 years ago
Tested Good at Wam Show
No box
Made in Great Britain
grey plate
Curve top
bottom square getter
GEC U54 - £25
(GZ37 53KU)
Bought as good used – spare back up 20 years ago
Tested medium at Wam Show
No box
Made in Great Britain
grey plate
Curve top
bottom square getter
https://i.imgur.com/RHH4Bzf.jpg
https://i.imgur.com/paQFC7y.jpg
https://i.imgur.com/qF43rjL.jpg
• NOS GEC KT66 – 1971 - £150
• NOS GEC A2900 ( ECC81) – SUPER RARE - £400
• 2 x NOS Mazda ECC81 £40/pair
• Mullard Thomas Organ 12AU7 (ECC82) - £50
• Thomas Organ 12AU7 (Sylvania ?) (ECC82) - £25
• NOS Mullard M8137 CV4004 (ECC83) - £100
• NOS Mullard E88CC - £45
• NOS Mullard E88CC - Matched Pair - £120
• NOS Brimar E88CC CV2492 - £30
• Golden Dragon E88CC x 2 - £15 for the pair
• Sovek 6922 £20 for 2 (3 pairs available no branding)
• Russian 6H8C – 6N8S - £10
• NOS Brimar foreign 6V6GT 4 available - £30 each
• NOS Brimar England 6V6GT 4 available - £30 each
• Brimar 6V6GT - £20
• Brimar CV511 (2 available) - £10 each
• 2x NOS Mullard (Valvo) EF86 £100/pair
• NOS Mazda EF86 £20
• Mullard EF86 £10
• Marconi U52 / 5U4G - £200
• Mullard GZ32 - £50
• GEC U54 - £40
• GEC U54 - £25
More details below
=====================================
NOS GEC KT66 – 1971 - £150
original box – dirty and worn
made in UK
7142 Z = Hammersmith 1971
clear glass
Brown base
double “O” getters types
Twin halo at base
73ma
NOS GEC A2900 – SUPER RARE - £400
(ECC81)
dark blue GEC box - tatty
Made in England
7010 date code Oct 1970 Z lot 83
black Welded plate
Disc Getter
Box good condition but not mint
2 x NOS Mazda ECC81 £40/pair
Tested at Wam Show
Tube 1 = 9.6/6.0 11.5/6.5
Tube 2 = 12/6.2 12/7.0
BVA made in England, probably Mullard
date codes unclear
back plates
halo getter
Mullard Thomas Organ 12AU7 - £50
(ECC82)
Mullard made in UK
Long grey plates
Square getter
bought good used – from tube rolling days
Thomas Organ 12AU7 - £25
(ECC82)
Made in USA
Copper grid post
short grey plate square getter – thought to be Sylvania
bought good used – from tube rolling days
NOS Mullard M8137 CV4004 - £100
(ECC83)
red/black box good condition
grey boxed plate with halo getter
old white logo
made in Great Britain
R7G4 date code = Mullard Mitcham July 1967
NOS Mullard E88CC - £45
Red black box – poor condition
Gold pins
White label larger font
Short grey plate
Circular getter
R9C2 I Mullard Mitcham Match 1962
Tested at a Wam Show
12.5/13.3
12/12.8
NOS Mullard E88CC - Matched Pair - £120
orange box
made in great Britain
stylised logo
gold pins
short grey plates
8 shot getter
Tested Wam Show
date codes R1 I1
Tube 1 = 10/14 9.5/14
Tube 2 = 11/14 10.5/14
NOS Brimar E88CC CV2492 - £20
red yellow box
gold pins
Foreign made
silver support saucer getter
short grey plates
Tested Wam show : 15/14 13.5/14
Golden Dragon E88CC x 2 - £15
6DL8 equivalent
1 in original box
1 in Tenix box
bought new by me in the 1980s from PM components used briefly in an AI500 before I sold the amp
Sovek 6922 £20 for 2
3 pairs available
Removed from my Graff 13.5b2 when I upgraded to Reflector 6N23P-EB
02/09 made in Russia x 1
01/02 made in Russia x 5
Russian 6H8C – 6N8S - £10
Russian equivalent of the 6N7-GT
used in a pre-amp in my tube rolling days
=================================
NOS Brimar 6V6GT - £30 each
4 available
Marked foreign USA suspected
Red yellow box – box fair condition
NOS Brimar 6V6GT - £30 ech
4 available
Made in England
Red yellow box – box fair condition
(1 box marked £1.26 + PT)
Brimar 6V6GT - £20
Box open both ends suspect NOS but not guaranteed
1 available
Made in England
Red yellow box – box poor condition
Brimar CV511 - £10 each
History unknown
2 available
no boxes
Not tested
-------------------------------------------------
NOS Mullard (Valvo) EF86 £100/pair
2 available
Blue black pink box good condition
early white logo
mesh
D0F4 – Valvo Hamburg June 1970
NOS Mazda EF86 £20
1 available
price new 18 Shillings + purchase tax
Mullard EF86 £10
in Mazda box
1 available
yellow logo
Made in Great Britain
smooth plate
D0F4 – Valvo Hamburg June 1970
blue boxe
bought good used – from tube rolling days
-------------------------------------------------
Mullard GZ32 - £50
Bought as new used by me in 2002 from Valve and Tube supplies IoW
tested 100% 16/06/02 - been in cupboard ever since
white box
black base
R71 B5K – code = Blackburn November 1965
Grey plates
Rectangular bottom getter
Marconi U52 / 5U4G - £200
Bought as good used – spare back up 20 years ago
Tested “good” at the Wam Show
LD 4
Clear Glass
Curve Top
Black plate
Bottom square getter
GEC U54 - £40
((GZ37 53KU)
Bought as v good used – spare back up 20 years ago
Tested Good at Wam Show
No box
Made in Great Britain
grey plate
Curve top
bottom square getter
GEC U54 - £25
(GZ37 53KU)
Bought as good used – spare back up 20 years ago
Tested medium at Wam Show
No box
Made in Great Britain
grey plate
Curve top
bottom square getter
https://i.imgur.com/RHH4Bzf.jpg
https://i.imgur.com/paQFC7y.jpg
https://i.imgur.com/qF43rjL.jpg