Hi, It seems like I'm not getting notifications of things I have subscribed to....anyhow.
I don't use inrush protection, but most of my amps (not this one though) use a B+ delay. I really have not found that the inrush is a problem. You do have to make sure that all components can handle the full B+ voltage though.
I hate noise regardless of the source so all my projects use IEC input filters. They are inexpensive. I believe this batch came from Jameco for under $2 each. They include a fuse as well. Search for Delta Electronics 04BEEG3S. They are good for both 120 and 240 mains. I also like to have the detachable cord feature.
I use a lot of the same transformers as they do what I want. Some of them were designed to my specs and fit what I want to accomplish better than generic ones.
"Will you consider a guitar amplifier with some tone controls in another future project?"
I already have it is posted somewhere on the forums as the GT-20. I attached a schematic. BTW this with a few small changes (like the deletion of the ability to use 6V6GT tubes) is in the works right now as a commercial product. PM me if interested as I don't like to mix diy and commercial on forums.
Good listening
Bruce
EDIT: ignore the red stuff as it was to try to correct something that didn't end up needing correcting. With the proper power transformer and output transformer (I used a CXPP60-MS 4K) you can use KT88s, KT90s, 6550, and KT120s as well as the 6L6 and EL34s). Available B+ needs to be about 450 volts and if you go to the biggest tubes at least 350ma. The amp is quite excellent for jazz and blues, but if you use the controls you can overdrive the preamp or the power amp or even both and get some really neat sounds. The preamp and power amp both have level controls and can be used independently. You can also put a reverb or other effect in between them. Power output depends on the tubes, but an easy 50 watts is available. If I can find the existing thread I'll link it to here (or if someone else can find it first please do the same).
Attachment:
GT 20 main circuit Jan 13 2014.jpg
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GT20 PS May 10 2013.jpg