Whoops said:Well if you know a source for more modules and dont want them all for yourself please let me know, I would buy a few.
Whoops said:Those look like Lustraphone transformers, nice.
I can't see what cards are fitted on the mic amplifier. Can you take some pictures of the cards at the top?
Squeaky said:There are currently some Sowter output transformers for sale and the sales blurbs include some interesting photos and comments. The transformers were apparently used in a small Helios console (special order in 1976). Furthermore, these same (or similar?) type of Sowter transformers were also apparently used in a couple of large format recording consoles.
Whoops said:Do you have links?
I have yet to see any Helios schematic, or photo with an output transformer.
Even if there's a particular model that had output transformers the original ones would not be Sowter for sure.
Winston O'Boogie said:he added a push-pull transistor buffer to the outputs so a transformer and lower load could be driven comfortably.
On pretty much all the Helios amp stages I've seen, I think this is necessary.