Providing numbers for double triodes - Gm etc. - will make them more easily sold, but the numbers mean nothing, so expect a few complaints if selling that number.
I have bought VERY few used double triodes - probably less than 20, maybe less than 10 (lots of genuine NOS though). Of the 10-20, one Mullard was a dud but had acceptable numbers, which I did not doubt or challenge.
Yeah I might just list the Double Triodes.
If you still have an amp' to test them in, that would be a better test than any valve tester, and ought to be about as slow/quick to use. At least you could throw out the definite duds, if there are any.
That said, even valves testing low on valve testers, but of the "right" brand/vintage, still sell for good money when listed as such.
Providing numbers for double triodes - Gm etc. - will make them more easily sold, but the numbers mean nothing, so expect a few complaints if selling that number.
I have bought VERY few used double triodes - probably less than 20, maybe less than 10 (lots of genuine NOS though). Of the 10-20, one Mullard was a dud but had acceptable numbers, which I did not doubt or challenge.
If the valve tester uses information contained in the original valve manufacturer's data sheets as the basis for setting the test parameters, then 'the numbers' would certainly mean something in establishing the relative goodness of a valve in terms of emissions or mutual conductance, for example against an expected value specified for a 'new' tube.
If you still have an amp' to test them in, that would be a better test than any valve tester, and ought to be about as slow/quick to use. At least you could throw out the definite duds, if there are any.
That said, even valves testing low on valve testers, but of the "right" brand/vintage, still sell for good money when listed as such.