I would say check some of your local electronic repair facilities.
But I would also suggest that if you are going to play with vacuum tube hifi, your best bet is to look for a good tube tester. They can be found at a reasonable price, if you take time to research them.
I found mine on ebay.
Hope that helps.
But I would also suggest that if you are going to play with vacuum tube hifi, your best bet is to look for a good tube tester. They can be found at a reasonable price, if you take time to research them.
I found mine on ebay.
Hope that helps.