I present a Raytheon 5694.
The Raytheon 5694 is very similar to the ECC32 and was considered to be interchangeable with the ECC32 in most applications. In the same way that the ECC32 is a modified ECC31, common cathode to separate cathodes, the 5694 is a modified 6N7G. I came across some chatter on the net where one poster felt it was better than the ECC32, so I decided to give one a try. Unfortunately, back in the day, the 5694, with its non-standard pin-out, was never a very popular tube and not all that many were made. This makes them rather tough to find, but fortunately, when they do pop up, they are not expensive. After searching high and low I was able to find only this one tube.
As I don't have an ECC32, I compared it to an ECC31, and consider the 5694 to be just as good, but as one would expect, with a slightly different tonal balance. The major difference is the Mullard is a bit warmer, with a seductively sweet and smooth midrange and a slightly recessed presentation, the classic Mullard sound. Whereas, the Raytheon has less warmth, with a crystal clear midrange and a slightly forward presention, the classic Raytheon sound. Both have a deep extended bass with good body, detail and slam.
At this point in time, I cannot say that I prefer one over the other and I am thrilled to have both.