Suggestions for a 6550C bass amp build?

[sluckey]

The Sunn power amp (actually Dynaco Mark III) is a good design. I would leave the choke exactly as is. Although the choke is high current, it it actually quite small. Here's a pic for reference...

[mirage_indigo]

Any idea which part to use for the choke? I have a Twin choke I was going to use rated for around 90mA.

Edit: I just noticed the hammond 194G is more like 250mA which seems more in line with my PT output (I'm using an Antek donut).

[sluckey]

Look here...

http://www.triodeelectronics.com/c354.html

[mirage_indigo]

Thanks for everyone's help.

I've been looking at chokes and I uncovered the dynaco kit folks having the exact same discussion and it looks like the 194G is a good choice (and already available to include on my tube store order).

I grabbed an Antek 200VA dual secondary PT which should give me about 560V peak at the choke input wired stacked for a b+ of somewhere in the 500ish region. Oddly I can't seem to find any VDC hipot number on the 194 series hammond chokes, but the 193 equivalents are all in the 600+ range so I think I'm OK. Everyone really does just route B+ through the choke, which still seems weird, but who am I to argue. I have a 100uf 630V Solen can cap I'm going to use also. Should be a big, beefy amp.

I've been rethinking the PPIMV and I think I'm ok, I mainly swore up and down I'd never build another amp without a master volume.

[Stevem]

No need in the world for a master volume on a true Bass amp !