In Reply to: 26 instead of 27 driver w/45 posted by audiobag on January 29, 2007 at 13:07:23:
Quite a lot. Changing from a 5-pin socket to a 6-pin will be the easiest change. While the mu of the tubes is similar the 26 may require you to drop the B+ a bit. The real issue is going to be figuring out what you can live with as a filament supply for the 26. AC on the 26’s filament will probably give you objectionable hum. You could use high-frequency AC but then the complexity of tube swap grows. Battery DC filaments are probably the easiest of your options if you don’t mind the hassle of using rechargeable batteries. Getting rectified DC to sound good could be as complicated as high-freq AC. This is not a plug and play tube swap.
Matt
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- Re: 26 instead of 27 driver w/45 - mwiebe 13:41:30 01/29/07 (4)
- Try 46 or 1624 - andy evans 14:24:42 01/29/07 (3)
- Re: Andy, do you recall the 16xx which is a near equivalent of the 45? - Ivan303 12:46:48 01/30/07 (1)
- I think you mean the 1626 - andy evans 14:21:49 01/30/07 (0)
- Or 47 or 49 maybe - andy evans 14:57:19 01/29/07 (0)