Kegger
R.I.P. 1/12/1966 - 6/1/2017
All right it was suggested to start a thread on this program, if anyone has
anything to add chime on in. here is the download!
http://www.duncanamps.com/tdslpe/download.html
This is a tube data base program "no I am not affiliated with it".
Usually you click search then "find by designator" an punch in the tube your
wondering about like say 12au7 it says pinout is 9A. Then if you click on the
"substitutes tab" and it shows you substitutes. Click on the "ratings tab" and
it gives you some info about that tube. Then "short data tab" gives you more
then the "data sheets links" goes to web pages breaking the tube down more.
But what if yu don't have any 12au7's or any substitutes it shows but maybe
you have quite a few tubes an want to see if any will work. You can try some
other parameters to try and find a sub. Open another instance of the program
click on search then "parametric search" click on pinout on the right hand side
an choose 9A, click on mu choose the little squigly thing on the match column
(means less or more) then choose 20 for your value then on the right put your
tolerance at 20% then click find. You will now see the list of tubes within 20%
of the parameters yu set with the same pinout. You'll notice a tube that many
people talk about the 12bh7 it has a little lower gain "not much" then an 12au7
but for me was an perfect replacement in my ASL 300B amps front end, sounds
absolutely wonderful. Now this was just one example of a way you can use the
program. There are many ways if you get creative with the parameters you set.
(may want to choose heater voltage and maybe current as well in your search)
The program basically gives you all the characteristics of a given tube. I use it
all the time when I don't have that exact tube. I try to stay close to all of the
categories of given tubes characteristics. Not all tubes on that search brought
up will work, you need to use your own judgment if the tube you want to "try"
is close enough to that original. I make no claims as to what tubes will work in
your equipment. But I just recently picked up an amp that used 6U8 tubes and
6AV6's. By using the parameters I described above I found that I could use the
6AT6's I had for those 6AV6's and that the 6GH8's I had might work for the 6U8
and they did so I could fire up the amp.
The reason I say bring up an second instance of the program is so you can see
the parameters you may want to enter by looking at the ratings and short data.
Say your building something, and you know what you want that tube to do but
you don't know what tube it might be if there is one. Just enter the parameters
you want and see if there's a tube for you.
The program will not do everything for you that you need but most all the tubes
are in the database and you'd be surprised how helpful it can be. The tubes not
in that Database you can click the link (Data sheet links) then you choose them.
I've found a lot of obscure tubes over the years by using this program myself..
.
anything to add chime on in. here is the download!
http://www.duncanamps.com/tdslpe/download.html
This is a tube data base program "no I am not affiliated with it".
Usually you click search then "find by designator" an punch in the tube your
wondering about like say 12au7 it says pinout is 9A. Then if you click on the
"substitutes tab" and it shows you substitutes. Click on the "ratings tab" and
it gives you some info about that tube. Then "short data tab" gives you more
then the "data sheets links" goes to web pages breaking the tube down more.
But what if yu don't have any 12au7's or any substitutes it shows but maybe
you have quite a few tubes an want to see if any will work. You can try some
other parameters to try and find a sub. Open another instance of the program
click on search then "parametric search" click on pinout on the right hand side
an choose 9A, click on mu choose the little squigly thing on the match column
(means less or more) then choose 20 for your value then on the right put your
tolerance at 20% then click find. You will now see the list of tubes within 20%
of the parameters yu set with the same pinout. You'll notice a tube that many
people talk about the 12bh7 it has a little lower gain "not much" then an 12au7
but for me was an perfect replacement in my ASL 300B amps front end, sounds
absolutely wonderful. Now this was just one example of a way you can use the
program. There are many ways if you get creative with the parameters you set.
(may want to choose heater voltage and maybe current as well in your search)
The program basically gives you all the characteristics of a given tube. I use it
all the time when I don't have that exact tube. I try to stay close to all of the
categories of given tubes characteristics. Not all tubes on that search brought
up will work, you need to use your own judgment if the tube you want to "try"
is close enough to that original. I make no claims as to what tubes will work in
your equipment. But I just recently picked up an amp that used 6U8 tubes and
6AV6's. By using the parameters I described above I found that I could use the
6AT6's I had for those 6AV6's and that the 6GH8's I had might work for the 6U8
and they did so I could fire up the amp.
The reason I say bring up an second instance of the program is so you can see
the parameters you may want to enter by looking at the ratings and short data.
Say your building something, and you know what you want that tube to do but
you don't know what tube it might be if there is one. Just enter the parameters
you want and see if there's a tube for you.
The program will not do everything for you that you need but most all the tubes
are in the database and you'd be surprised how helpful it can be. The tubes not
in that Database you can click the link (Data sheet links) then you choose them.
I've found a lot of obscure tubes over the years by using this program myself..
.
