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6SN7 tube GTA vrs GTB

I would like to know the difference between the designation GTA and GTB.

Thanks

Fordmod (Threads | Answers | This Thread)

07-04-08

Responses (1-25 of 25)

Click title to read one, or click date to read all below it.

07-04-08 Gta: max plate watts=5, gtb: mpw=7.5 gta: rp=7700, gtb: rp=6 ... Amandarae

07-04-08 The gtb was developed to handle 450 volts on the plates the ... Mechans

07-04-08 I am not sure of what you consider "royally expensive&q ... Roxy54

07-04-08: Fordmod
Mechans

Very good info... many thanks for sharing your knowlege!
Fordmod (Threads | Answers | This Thread)

07-04-08 (http://home.att.net/~chimeraone/6sn7sound.html) i'm using ... Rodman99999

07-04-08 Keep in mind if looking at the sylvania jan chs/6sn7w(tall b ... Rodman99999

07-06-08 It has been a journey for me to search for the "perfect ... Vett93

07-10-08 I use sylvania gt's and the ones known as (bad boys)in my pr ... Jsman

07-11-08 (http://home.att.net/~chimeraone/6sn7sound.html) i've perso ... Rodman99999

07-11-08 Looks like i will be starting some more tube rolling in the ... Unclejeff

07-12-08 Rodman- i've been wanting to try some tung sol round plates ... Jtwrace

07-12-08 Hello mr j- i've never listened to pope hollands, so i can' ... Rodman99999

07-12-08 Ok. i've tried nos rca gtb's and never liked them. i am in ... Jtwrace

07-13-08 That would be a little too far to drive. i'm in indy! i th ... Rodman99999

07-13-08 Ok. i will check that out. funny, i will be in indy in two ... Jtwrace

07-13-08 Too bad you can't bring your system(and listening room) with ... Rodman99999

07-15-08 How are the sylvania 6sn7wgt that good? i was told they are ... Jtwrace

07-16-08 The "best" are the 40's tungsol jan ctl/6sn7gt rou ... Rodman99999

07-16-08 Make that: glare or tubbiness(typo) Rodman99999

07-19-08 Rodmann, you happen to prefer the most commonly sought after ... Mechans

07-20-08 One thing that i suggest, is to buy from a tube dealer that ... Racamuti

07-20-08 Hello mr m: i suppose the value of those tubes would have t ... Rodman99999

07-20-08 Having them tested for noise is very important/imperative if ... Rodman99999

07-22-08 Well i am happy to have finally sorted through enough n7s to ... Mechans

07-26-08 Has anyone heard of the 1578-6sn8 tubes from russia? if so, ... Jtwrace