[tagosaku]

Has anyone tried the 12xx7 -> 6sn7 adaptor (SP or GT make) on DV 336?

I am looking for an amp that use 6sn7 and can use 12ay7 etc. with the adaptor.

 

[roger_s]

Unless the adapter can provide additional heater voltage I don't think it's going to work well. The 6SN7 requires 6.3V and your 12ay7 will want 12.6V.

 

[tagosaku]

Quote:

Originally Posted by roger_s /img/forum/go_quote.gif Unless the adapter can provide additional heater voltage I don't think it's going to work well. The 6SN7 requires 6.3V and your 12ay7 will want 12.6V.

So I guess DV336 won't work the same way MPX will when it comes to using 12xx7s in general.

Thanks

 

[Skylab]

If you want another less expensive tube to use in the 336SE, try getting some 6F8G's with adapters on EBay. The adapters go for $25, and 6F8G's can be had very inexpensively. The 6F8G is basically identically to the 6SN7 except the pinout is different and the 6F8G has a grid cap that must be accommodated with the adapter. But once you have those - good things can happen. I got a pair of Tung Sol VT-99/6F8G's that are identical in construction to the round-plate 6SN7GT's. The round-plate 6SN7GT's? $500/pair NOS. The round-plate 6F8G's? $40/pair NOS.

 

[tagosaku]

Thanks.
I happen to have a bunch of 12xx7, so was hoping to utilize them.