Hi all
Just spent a very pleasant afternoon listening to various albums with the Firebottle monos and trying out the Telefunken valves which Bigman sent with them and it got me thinking. The monos use pc88 valves which looking at t'internet seem to be amongst the more affordable when it comes to valve rolling - good planning Mr Firebottle! especially when you only need 2 of them for the pair.
So looking at valves what do the effects of different types of getter do? Some are long , halo etc, so what effect does this have on them, especially with the same type ( eg PC88, EL84 etc) and same make. For example I have a set of Mullard PC88s but have seen another set advertised as having gold pins and halo getters, I get the gold pin bit, extra conductivity , better connection and stuf but what about the getter? How will this affect the sound in the amp?
Or is this one of the great valve intangible mysteries? can any more experienced AOSers enlighten me?
Also if valves are not used for a while do they need time to bed in again?
BTW for those interested in the Monos the Mullards sound very clear and have a great mid range with an extended bass providing a real crunch and attack to rock guitar based tracks. The Telefunkens seem to have a tad more detail and are more "precise" for want of a better word, but maybe at the expense of a touch of the bass extension. But all are very enjoyable and this is 1st impressions, I'll have to listen to them a bit more.
Cheers Andy