Have been focused on the push pull western amps like 86, 92 or 46. Been looking into the 91a with “R” and we are still going strong learning.
The push pulls have choke and capacitor filtering after the sublime 274a/b. I was surprised to learn that the 91a is restitor capacitor. Also the 91a/b hosts 25uf electrolytic capacitors that in western electric terms compared to the we1086 is high.
If any audio16 readers could help understanding the reasons here it will be appreciated.
Here we have one of the very 1st time I played the we13a with my good friend “D”.
its actually the 1st time it was ever played in Europe also.
The throat used was a we15a one. This is shorter and has a different expansion rate to the we13a’s. Only at this stage my casting facility had gone bankrupt and did not supply throats. Lucky I have loads of original stuff hanging around.
there is no tweeter and no bass just straight we13a before its finishing stages. As you can guess I was impatient to hear!….
The amplifier is a 20$ d-amp that you can buy at RadioShack and cdplayer is EMT 981.