Tube Amp Archive

I'm not seeing where you can order this kit. It see the page detailing the 440 but no kit. Then when I click on the amps and kits to the left I see the PI and high octane amps but not the 440. What am I doing wrong? :? It sounds as though you are looking on the Doberman site. Chris doesn't sell the...

I did notice the 40u terminal error on the layout, I have fixed that on the latest plans. as well as a couple of other minor things (I think?) R2 is labeled R1 & R37 is shown as R42. C21 & 15 are not shown as polarized caps. Those were more corrections I made this weekend to the docs. They didn't s...

Do all of you here think that the Express is a 'one size fits all' kind of amp? Or do you find that the same Express that works great with a Strat is also too easily overdriven with a LP and vice versa? I am just now looking at this after having built a few Expresses. I hope you know what I am talk...

Duplicate post deleted.

Wow, I'm sure this has been said before, but +1 to Cliff's kits. I didn't expect them to come with every little piece of hardware necessary, and especially didn't expect it to come with tubes. Very cool. One of the complaints I've heard over and over about kits are that folks are disappointed that ...

sounds like a really cool sounding low wattage amp. Has anyone done a layout? If you search around the thread, one guy did a pdf layout similar to a real wreck. Also, the pics of mine give a good layout of the components and board. Cliff did a layout but it is only included with a purchase of his 4...

Here is a link to the AX84 4-4-0 page where you can find the latest schematic(08.10.02):

http://www.ax84.com/4-4-0.html

Dumb question perhaps, but where is the updated schematic located??? Thanks, Ron The only other change that might soon come is changing the tube in the PI to a 12ay7 or 12av7. Both work equally well and allow you to drop R20 and R21 and reduce R14 and R15 to 5.6k. Cliff is going to try this soon an...

JoeyE wrote:Test point voltages are also now available too on the new schematic. I wish i had them when i built mine to save a lot of tinkering and time.

I have to take the blame for that. The voltages were turned off when I made the pdf and I didn't realize it for a long time.

I made the tonestack and presence changes in the revised schematic to my amp. The amp is a bit darker now as I was using a linear pot for the treble pot. The nice thing is the tonestack attenuates the signal more so the amp cleans up more like it should. (The linear treble pot I was using was likel...

Hi Chaps, After not rushing around trying to sort out this amp, the rock band we've been talking about resurrecting is happening all of a sudden. I need to sort out the amp pretty soon. I've got one of those lovely laser engraved panels on the way (thanks Eric). Who can supply me a head cab to fit ...

Thanks Cliff and Brian, The clips are great and as anticipated, both certainly have their distinct characters! That settles it, there is no question of choosing, I want both... Join the club. It's only got two members right now, but... :lol: I am more than happy to wait for the "final" (is there su...

[For those of you that are new to this thread, I'm in the process of building a 2 watt PP Wreck using a 6SN7 for the output section. Cliff Chappell is building a parallel build so it will be interesting to compare notes before the final schematic is posted. I'm also working on a new way to apply le...

So now, how would you compare the Wreckless (soundwise) to the Studio? (clips pleeeze...?) Well, I'm not Brian, but... October Studio clean: http://www.chappellamps.com/amplifiers/october/clips/oct_studio_blackbird_etc.mp3 Full on brown sound: http://www.chappellamps.com/amplifiers/october/clips/oc...

GainMaster wrote:Here are some pics of Cliff Chappell's build. Notice the abaloni inlay. He is doing some amazing work. http://www.chappellamps.com

Brian

Here are a couple of more shots of the build:

-- Edit --

I removed the pic he had alredy posted.