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Pantode and Tetrode What is the difference?

What is the difference between Pantode and Tetrode tube?
I have a Antique Sound Lab Hurricanes Mono Blocks and the instruction say I can use the KT88s or a Pantode can someone explain the difference and sound qualities each type will offer.
What are the pros and cons for each type.
Why would one chose one over the other.

Another question is tube matching what defines a matched tube.
New tubes are sold in a matched pair (The KT88s)

If you mix the tubes up how does one find the matched pair, is it not all down to biasing them on the amp, regardless of tube you use.

The later is because I recived the amp with 5 broken tubes and I now have to replace them but if 3 of the busted tubes are one of a matched pair will it impact the sound if I use a new tube, as that will not be matched.
Thanks
punkuk

Showing 3 responses by punkuk

punkuk OP
52 posts
 
I am waiting on a pair of Merlin's as for the P/T I have only tested the amps with a Gallo Due to check if they are working.

The Merlin's should be here in about two or Three weeks I may well sell the Hurricanes and get a pair of Manly Snappers Bobby at Merlin said it is a great amp to drive his speakers.

As for the EL34 you are correct the Hurricane does not use them but if I do change amps for something smaller it will have the 34s.

I just won a Superior Instruments Co. TD-55 Tube Tester on ebay and hope it will accommodate my tubes as I found it difficult to find answers to which tube tester works with the KT88s I have a sinking feeling that this one does not.

There is a B&K CRT 465 coming up on ebay can anyone can tell me if this will test KT88s or if the TD-55 will work with 88s 34s and the other ones (That I cannot remember the name of)
punkuk OP
52 posts
 
Thanks Ozzy for pointing my mistake so eloquently. I am truly sorry if I have offended you.
I will attempt to post on the correct forums in the future.

Thanks to everyone else that offered there expertise and advise.

The Hurricane does have a switch on the top T and P it does not have anything in the Chinese manual about that switch I assume from the posts the that is Pantode or Tetrode, does that mean that the amp will run a tube in ether mode regardless of the type of tube or is it asking for the type of tube I am using.

If any Mod can move this to Amps Ozzy would be grateful.

Thanks
punkuk OP
52 posts
 
Thanks
I am still a little confused about tube matching the Hurricane allows for each tube to be biased independently in this case is a matched pair still important.

In addition, I was going to buy a tube tester and had asked on THE AMP FORUM about which one would accommodate the KT88s and EL34s (for future experimentation).
One reply was that a small portable one would suffice but it would not "computer match" the tubes.
What makes a matched pair?
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