Abbreviation |
Definition |
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If valve ABC described as "possible alternative" to valve XYZ, this means it has similarities but is not identical. It is in the same family but is not the same. It is similar but it is not equivalent. Alternatives are useful if you are inventing new ideas, designing new equipment, or investing in types that will become popular in future
The advantage of these types is that for lower COST you get a UK/USA made tube. UK/USA made valves are often expensive and very limited in quantity. “Alternative” types are available in good quantities, good quality, low price. |
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These types are already established in amplifier
use. |
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BB |
Bubble Bag - some used valves,
and Grade One valves costing less than £2, will now
be supplied in bubble bags.
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Billington
Gold |
Tested within very tight limits and inspected
for superior physical conformity. 12 months guarantee. A good
reputation worldwide, especially amongst Asian audiophiles.
Blue/red/gold original box. |
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BP |
Bulk Packed - valve is packed
in "bulk pack" or "egg crate" (If white
box is required we can supply at 14p each).
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Conditional |
Guarantee limited to that
offered to us by the individual suppliers concerned. These
suppliers usually give free of charge replacements in the
unlikely event of any problems, however, this depends upon
the technicalities of any returned item. Because we value
both your custom and our reputation, we will treat all claims
for replacements as sympathetically and generously as possible.
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G1 |
Grade One Box - packed
in our own attractive Grade One box and packaging.
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Grade
1 |
Grade One - valves are
slightly used items of best physical appearance. Unless
stated otherwise they have small stains in the glass. Stains
may also mean small imperfections to getter, base, etc.
Items are individually tested to a minimum
of 80% emission (gm) and minimum
of 80% Ia. They are guaranteed
for 90 days from purchase and usually presented
in attractive packaging (unless stated otherwise).
Standard used valves sometimes have print missing making
it hard to see the type number and brand logo. Grade
One valves always carry the type number and appropriate
logo (GEC, Mullard, Sylvania etc.) They are superior
in appearance and performance to usual used valves supplied
by other companies
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GVT |
Government Box.
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Mixed |
A random selection of good brands. If you
wish to specify particular brands please add an extra £1
per valve for sorting.
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NOS |
Genuinely new UNUSED, clean and guaranteed but have been stored for 20 years or more often at military stores. New – yet old – hence NOS! This is a standard practice throughout the valve industry.
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OB |
Original Box - if denoted
‘original box’ we will supply to you in the
manufacturer’s old original individual boxes. |
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POA |
Price On Application
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Potential
audio type |
This denotes types where an audio amplifier
has been successfully built by our consultants or others.
These ‘potential audio types’ are better value
for money compared with the more "well-known"
and "obvious" audio valves [such as ECC83, 400B,
EL34, KT88 etc.] The advantage to you of these types is
that for lower cost you get a UK/USA made item considered
by many to be preferable to Chinese/Russian. UK/USA. valves
are often very expensive and very limited in quantity. Use
potential audio types to overcome these difficulties.
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Used |
Used - ex-equipment/pulls
definitely not new appearance but carefully tested, clean
appearance and guaranteed. Guarantee is minimum 90 days
from date of despatch depending on type
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WB |
White Box - unless clearly
stated as "used", - white boxed items are genuinely
new, clean, guaranteed N.O.S.
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