Thanks Duncan, I think what I'll do is series connect the first 2x50uF can for a 25uF 1000V C1. The inductor voltage does bounce around for a few cycles at nearly full voltage but I think this looks ok in attached sim output.

However, now that I think about it, in the original amp, I believe the ...

Hello, hope this is the right sub forum for this, being the first post.

I am doing my first build in many years, reusing chassis and transformers from an old organ amp, originally somewhat similar to this - https://www.r-type.org/articles/art003bca.jpg with a choke input filter and ultralinear ...

Ahoy, after a long gap I am getting back into amp building. I first used PSUD in about 2007 IIRC so very pleased to see it still going. My first effort resulted from finding a Nesco intsruments valve chart recorder in my Dad's garage, heaven knows where he got that from, he is more into lathes and ...