Helloo. Seems to be some Worldwide confusion on this tube.
Some say they are same. Not really. Per Tube Lore a 966 is an
866,a. Some say an 866 is an 866a.. but not Tube Lore. Later tubes
re even marked with both 866/866a numbers not really correct.
Which would make an 866a a 966 which it is not. The 966 is largely
omitted as not that popular. Having watched 2 NOS 866a fog
sorta fry and throw off lots a black bits inside in a 966 slot I can
confirm it simply is not the same...nor compatible. Can anyone
shed light on this obscure mystery. Thanks!
Some say they are same. Not really. Per Tube Lore a 966 is an
866,a. Some say an 866 is an 866a.. but not Tube Lore. Later tubes
re even marked with both 866/866a numbers not really correct.
Which would make an 866a a 966 which it is not. The 966 is largely
omitted as not that popular. Having watched 2 NOS 866a fog
sorta fry and throw off lots a black bits inside in a 966 slot I can
confirm it simply is not the same...nor compatible. Can anyone
shed light on this obscure mystery. Thanks!
