What are the many tube preamp JCM800 stomp boxes? I started a thread long ago asking for such a thing and got nothing. Very interested.
Thanks in advance.
Check out this link
I don't really know much about this, and i'm sure have seen this before.
But for me, I have start somewhere, and of course I need to learn a little .......before I shell out my life savings
Great links. Thanks!
Are you researching MIAB pedals and/or going for a particular sound?
Frankly, I don't have a clue as to what i'm doing. I've never even used anything but some chorus and reverb (thought I never would), but recently have been buying some dirtier stuff and having a lot of fun.
I think i'm getting a little senile
Seriously though, i'm very curious about the analog aspect to this. I was pretty much through with even thinking about anything analog until I got the pedal bug recently. Now i'm taking my time and doing some comparisons. I'd like to try tubes, but at $400 I'm going to have to hear some more input from this site.
So how about this. You buy one, test it, review it.....for the team
Anyway, that may be way more info than you want or asked for. But after parsing hundreds of MIAB theads and owning maybe a dozen or so of the most popular boxes myself, that would be my counsel.
Ah, good advice thanks!
But unfortunately, it's too late, I've already bought a bunch of stuff.
It's funny that in the end it's just dirt really. To be picky about dirt? Dirt connoisseur?
Dunno. It's a big pedal so who knows what's going on under the hood. I suspect it might be an actual 800 preamp in stomp format - it certainly sounds like one. The Kingsley Jouster runs two 12AX7s at full plate voltage using 12V positive centre - so why wouldn't this at 15V? They internally ramp up the voltage. The Kinglsey Harlot runs a single 12AX7 at full voltage on a 9V, 500mA negative centre input, and sounds beyond anything I've ever heard/felt in transistor form, like a real amp.
The price is hugely prohibitive but if it is what it says it is, probably worth it to turn your Twin Reverb into a proper JCM800! Would love to see a gut shot.
Whadja get, btw?
Yeah, the 15V could be used to get to the typical voltage but 15v is also enough to run in starved plate mode. I wish the site was a bit clearer on that part. Still, though, it doesn't really matter if it sounds good.
Not sure how many tubes are in there, but there should be two to do it right...
As for running from a 15v PSU not being enough, I can get 290V from a 9V PSU Which is more than enough to run a pair of 12AX7s... The heaters are the main current draw and they're 6.3v regulated from the 9v feed. The plates are the high voltage side and pull very little current relatively speaking.
As for JCM800 pre in a stomp, entirely doable. We did some tweaks to mine to tame the treble a bit (as the presence control is in the power stage). I did mine as a set and forget, but it could be a knob too.
It might look something like this...
Bit scruffy on the inside, but then this led to development of a power board and PCB for the effect that'll be available to DIYers at some point via Grind Customs.
Clips, vids, info? Interested. Thanks.
STM looks rad. If you can get those tubes safely inside the enclosure, I'd be very interested.