Nanosecond

[CJ]

Does anybody have the scheemo== to the Z V E X N A N O H E A D A M P?

http://zvexamps.com/

It has been mentioned before, I did a forum search, but I want the orig.
I know it uses 6201W or something miniatures with flying leads, there are some DIY versions out there, but what about the original?

Thanks!

cj

 

[CJ]

Found a fuzz box from zack, getting warmer...

http://www.beavisaudio.com/Projects/fuzzfactory.htm

 

[12afael]

how you put something like this inside a pedal???

and anyone know a source for "500 tera-ohm pots"

Because this is a high-gain circuit, keep your wire lengths as short as possible. Ground both the input and output signal bus.

:green:

 

[CJ]

This guy has a 1 watt and a bunch of other cool stuff.

http://www.harmonicappliances.com/

 

[12afael]

not zvex but small enough.

http://s17.photobucket.com/albums/b77/zeta55/RedHead_smaller/
http://www.geocities.com/humbug64/

http://www.single-ended.com/fukunaga/fukunaga.htm

Rafael

 

[rodabod]

CJ,

As far as low power output sections go, this may prove interesting:

http://annex.ax84.com/media/ax84_m276.gif

It's a 12AU7 configured to do a kind of self push-pull if you like.

I think I'm going to try that power stage with a Marshall-ish preamp.

 

[peterc]

Doug Hammond's Firefly has also been well received.

http://www.diyguitarist.com/GuitarAmps/FireFly.htm

Peter

 

[Michael Tibes]

[quote author="CJ"]Found a fuzz box from zack, getting warmer...

http://www.beavisaudio.com/Projects/fuzzfactory.htm[/quote]
I wonder what that is, it is certainly not the zvex fuzzfactory I know, which has no tubes inside.
There used to be an article about the fuzzfactory here: http://f.defaut.free.fr/, but it's withdrawn now.

Michael

 

[CJ]

OK the output xfmr is the same one used as a reverb transformer in the fender amps, 0221091 or something like that, lucky me, I have one from 1972 that I saved for some unknown reason as there is always enough verb in the room.

So its a SE all the way thru, 2 dual trides, so three voltage amps and a power amp, we have the tubes, the xfmr, the topology, I see a 100 ohm cathode resistor, just wire it up and tweak it good, ehh?

 

[lotus]

I'll get right-on that fuzz factory schematic building and start gathering parts. or maybe I should wait till April 1st :grin:

 

[CJ]

O K

 

[okgb]

quite exciting really , low watts amp
again highly depend upon speaker , but keep us in the loop

btw i found the CAE 3+SE schemo , no huge surprises
it does seem derivative from the Soldano X-88

 

[dissonantstring]

ha!! good eye CJ!
i checked the weber site and they have the tube reverb driver transformer rated for 3W (only $10). this is exciting!
regards,
grant

 

[CJ]

i think those are standard rack handles if you are after the look as well as the sound...

 

[ebartlet]

 

[CJ]

That looks like it will do the trick!
What thread was that?
I have a whole box of those tubes .

I have some minis, 5672, 5678 and Tele DF 703, 2E31 or something?
Pentodes, not dual triodes, maybe a grid leak version with two stages driver with the minis, I like the regular 120 supply, just build his box in a bigger box.
Have to shield it good.

 

[CJ]

OT:

Found a new xfmr company for guitar:

http://www.heyboertransformers.com/tubeamps.shtml

 

[rodabod]

I was thinking of using the AX84 Firefly output stage using a 12AU7 in push-pull using one of these (as suggested) :

http://www.hammondmfg.com/125a.htm

That supposedly gets you around 1W. Does anyone know (generally speaking) how loud 1/3W is?(!)

 

[CJ]

Loud thru a full stack, mosquito buzz thru a 2 inch zenith.

That xfmr looks ok, or roll your own fender version:

 

[ebartlet]

[quote author="CJ"]That looks like it will do the trick!
What thread was that?
[/quote]

http://www.el34world.com/Forum/yabb2/nph-YaBB.pl?num=1192851160