Boob tube V1.5 & charge pump

[alltrax74]

There must be something wrong with your board, I guess you already checked all the usual suspects...
Sorry I'm not really helping...

[Heath]

Ha!  Well, believe it or not, it sometimes helps just to have someone act as a sounding board.  I appreciate your replies. :)

As per usual, it's the most basic stupid part that causes issues, heh.  The chargepump board is so basic and so few parts and I've looked it over several times bug I'm not seeing an issue.  I think I'll build another one... very carefully :p

BTW, I clicked your sig link.  I am awed by your luthier section.  That ES335 model you built is so far beyond anything I could ever hope to accomplish that I'm just blown away.  Huge respect to you.

[alltrax74]

Thanks !

[rooo]

This might be a dumb question, but could you run two charge pumps in series? So have a charge pump...9v input, with a regulator on the output to have 12v. Then run those 12v into the boob tube charge pump?

[Kinski]

My account is screwy. Sometimes my name comes up as "rooo." Weird.

[rocket88]

dude, i was wondering who roo was and why they were using the same avatar as you. lol

[Kinski]

Anyone now about this? Charge pump in series?

[Heath]

So, I'm no expert, but since no one else is chiming in....  I'm using a homemade power supply with regulators, charge pumps, whatnot.  Not *exactly* what you are talking about, but I'm sending 12 volts into a boobtube + charge pump.  Seems to me 12 volts is 12 volts (amps matter, of course, depending on what you are supplying the 9v with, but pfft...  ).  Not sure a 9 volt battery is a good idea for this, but a 9 volt wall wart should be just fine.  When I tried it with a battery it ate that sucker up pretty fast.

So, in summation:

1. 9v - 12v charge pump into the boobtube's charge pump should work... maybe not ideally...
2. Don't bother doing this with a battery.  At least in my experience, just a few minutes reduced my new 9v battery to about 7.2 volts.
3. 9v wall wart should work.. can't see why not.
4. 12v regulated into mr. boobtube is best.
5. Maybe try expanding the charge pump in the boob-tube layout one set of components further for the next step up in voltage and go with that.  I haven't tried it but it should work just fine.  Paul Stevens on here has a layout on his page that can charge up high enough to zap the living shit out of you (yes, he includes a very serious disclaimer with it to not be a dick).

Honestly, I think everyone should have one of these (all credit to rocket88 and induction, mine is a small modification of their layouts):



It's a little bit of work (seriously just a little bit, no hard at all) but it's handy as shit to have around.  I'm absolutely in love with it.  If mine got snatched or lost I'd have to build another right away and I plan on building a more pedalboard friendly version soon.  This one is my building/testing/desktop supply.

You can get yourself a 15v - 20v power supply (try to find 1 amp) off ebay super cheap and easy.  You can get all the dc leads at Tayda for pennies.

Here's a link to the layout thread

Anyway, I suck, but if there's even a nugget of help in that, I'm happy to offer it.