Push pull amps.
Posted: Wed Oct 23, 2019 11:47 am
I had a short listening session with a World Designs 6550 push pull amp the other day, and I was pleasantly surprised at the "fullness" of the presentation.
So, today I am reacquainting myself with an old friend, my first amp build, the 832a push pull amp.
I remembered it had a fault last time out (many,many years ago) so I tested it and found one of the 832a was dodgy, so I swapped in a replacement and all seems well. I gave it a once over and removed all the dust and cobwebs while it was on the bench.
Because the 832a is two valves in one envelope, with a shared cathode, and a CCS in the cathode, it will only operate in class A.
So now it's in the main system and playing a few favourites. :D
So, today I am reacquainting myself with an old friend, my first amp build, the 832a push pull amp.
I remembered it had a fault last time out (many,many years ago) so I tested it and found one of the 832a was dodgy, so I swapped in a replacement and all seems well. I gave it a once over and removed all the dust and cobwebs while it was on the bench.
Because the 832a is two valves in one envelope, with a shared cathode, and a CCS in the cathode, it will only operate in class A.
So now it's in the main system and playing a few favourites. :D