The Amp Garage

I found this site http://www.ultimateguitargear.com/kens_column.htm while looking for something else. I thought it would be of interest to you guys. I do not remember if it was mentionned here before so pardon me if it is the case.

Rob, I went a different direction with the Komet clone I built. Instead of the split-load, I replaced the voltage divider in front of V3 with a 500K pot, which gives the effect of a continously variable 'fast/slow' switch, and also gives the possibility of somewhat more gain. I replaced the 100k po...

Really I have to figure a way to get the overdrive sounds more reasonable levels. As I said I tried the simple MV but was not happy with that (hope I got it right). Also I was thinking to build some kind of simple attenuator. Anyone got a favourite ? schem ? Thanks, I use a MiniMass with my Express...

Nice work Mat!

I think your V2 voltages are fine. The Kelly90 schematic shows 261V and 2.9V

Nice work! What power tubes do you have in there?

Hi Ben,

you could read the P1 Theory Document on the AX84 site http://ax84.com/index.php?pg=projects&project_id=p1

Also the Jack Darr Book http://www.pacificrecone.com/JackDarrBook.html

Lots of articles on tubes here http://www.radau5.ch/basics_1.html

And you can ask questions here!

You can get most of these from Mouser:

Electroswitch 3 position rotary switch, 690-C5P0304N-A
Johnson Meter Tip Jack Black, 530-105-0803-1
Johnson Meter Tip Jack Red, 530-105-0802-1

Alpha pots, either linear or audio

The voltage across the plate resistor is B+ minus the plate voltage. So if your B+ is at 275V and you have 200V for your plate voltage, 75V is left across the plate resistor.

These values will change as the signal is applied.

It's great to hear that is now alive, and loud! Congrats!

We discussed the dissipation of this resistor in a previous thread http://ampgarage.com/forum/viewtopic.php?t=405&start=0&postdays=0&postorder=asc I have never stuck my finger on the resistor but someone said in that thread that the 25W runs pretty cool. I would keep it at a reasonnable distance fro...

Yeah! Nice! And Richie's playing is great!

The faceplates were made by an engraver with back fill letters. I can't mention who online...we want to avoid "baseless" cease and desist letters! In fact, everybody involved on this project were "local" unknowns for that reason. I have a few extras if you need some. Allynmey Thanks, Allyn. This is...

Allyn,

Very nice work! It looks very professional!

How are the nameplates made? Serigraphy?

Is it not what is called the "death cap"?

http://psg.com/~dlamkins/Articles/groun ... p?cat=amps

I always wire a grounded input cord.

2. My power indicator is a 120V lamp (salvaged from the Univox I started with). While connected to the current limiter, the lamp dims when I play, and glows normally when I don't. Whats up with that? When I am not connected to the current limiter, the power indicater doesn't dim when I play. It is ...