555 timer to create 300-400V DC/B+ for Tube Circuits

[Neil mcNasty]

A friend of mine is doing amp repairs and building some really cool tube pedals, and he has got some very interesting ways of generating up to 400V DC from 12V DC power supplies, that can supply a high voltage B+ current for tube circuits.
Check it out: Iskrem Electro

Here's the article where the idea came from: http://www.dos4ever.com/flyback/flyback.html

Here are his pedals that use this way of powering tubes:
A Tube Fuzz (I'm saving up to get one of these!!!): https://www.youtube.com/watch?v=IeZVBHtmqrk
His Bassman in a pedal: https://www.youtube.com/watch?v=kDWo_XkgsDQ
...and the Catodyne: https://www.youtube.com/watch?v=Ah9XkNweiXI
Catodyne with Bass: https://www.youtube.com/watch?v=DmAeK79xzrQ

And lets not forget his amp builds...
Like this one:

[motterpaul]

I brought up this topic also last summer. There is a company here in San Diego that has been doing this for quite awhile now: http://www.sibfx.com/charger/charger.html

They also have a 9v pedal that uses a 12ax7 tube for overdrive.

[Silver Blues]

There's also a guy on FSB that is selling PCBs for an Alembic F2-B preamp, and he makes the plate voltage with a 555-based charge pump much like this. That looks like a cool project, especially to pair with those tiny high-power eBay amps that were shared here a few weeks back.

[BuGG]

I've done this for a couple tube based projects,   check out the Nixie SMPS.