On 29 Apr 2014 at 18:51, WA5CAB--- via ARC5 wrote: > The electrical equivalent in 6 volt to the 12A6 is the 6K6 (if for example you > want to convert a receiver to 12V without any rewiring). The 6K6 is also the electrical equivalent of the 41. And the 6K7 is the electrical equivalent of the 6D6. I always found that interesting... Ken W7EKB