Tube Amp Archive

I used some old Dagnall vox ac30 OT and PT and it sounds great.
I'd change the stock tonestack as really sucks the life (and volume) out of this amp. I replaced it with ritchie's 5e3 tone control and it brought back more punch, mids and body to the amp.

Thanks for the update, Daz. Can you balance the volumes with just the single master, or is there a good volume jump - I imagine it would. EDIT: Sorry, didn't see the post where you already talked about this. No worries! You can generally balance the levels. Ideally I would like a master just on the...

Well I've revoiced the stang tone control as I didn't really like it stock. Knocked back the bottom end and added back some mids.

I also added a lamar PPIMV and must say it's one of the nicest master volumes I've used.

I should be able to do a video clip tonight.

In terms of layout it's exactly the same as doing it on a Marshall ( http://metroamp.com/wiki/index.php/Lar/Mar_PPI-MV ) with the exception that the junction of the 2 220K resistors that carries the bias voltage in a Marshall is actually at ground in a Liverpool, so you can run a wire from this poi...

Did you resolve the volume discrepancy or is that felt to be inherent to the design of this amp? i had misconceptions of the volume difference because I hooked it up to a speaker that wasn't in a cabinet. The stang side is plenty loud with lots of headroom, so volume matching with the GT side will ...

Transformer design and supply makes transformers for Matchless, Badcat and Divided by 13. You can buy direct from them. They are top quality transformers.

Gaz wrote:I wouldn't be surprised if Z started building these himself!

Funnily enough, Z did build one prototype back in '09 but it was channel switching. I only discovered that after I started building it.

Thanks. Diagnosed the new power tubes I got had a short.

near completion: [IMG:799:597]http://img.photobucket.com/albums/v179/dubschan/stangray%20gt%20build/Picture002-1.jpg[/img] I put an eminence red fang speaker in there which seems to work well. Having issues with 500mA HT fuse blowing. I was using fast blow but I'll change to slo blo. The mains fuse ...

I'd be willing to bet the CUB is a lightning circuit. I have a Star Amps gainstar 15 which is Mark Sampson formed after he left badcat. I reversed engineered the amp and guess what - the clean channel is a lightning without the master volume!! And I would not be surprised if the gain channel is a h...

I'd be willing to bet the CUB is a lightning circuit.
I have a Star Amps gainstar 15 which is Mark Sampson formed after he
left badcat. I reversed engineered the amp and guess what - the clean channel is a lightning without the master volume!!

Thanks for the feedback guys. Yeah it wasn't too hard to do. Basically built a s-ray and tied the gt preamp to the other side of the PI. Need to play around to the volume balance between channels. With the JJ in the gt side it's balanced but with Chinese it's like "Whoa!" but has that crunchy goodne...

Just finished my chassis build which is a Stangray one channel and maz GT in the other. Both sound great, the GT side much louder as it doesn't have a tonestack sucking gain like the Stangray side. I experimented with different 12ax7 on the Gt side and volume and gain difference was incredible. The ...

Cool. Did you draw up a schematic? I can imagine how you're doing it, but it'd be interesting to see just how you're doing the switching. Not at the moment. I have a stangray and gt schematic. Really straightforward- I just added a gt pre to the stangray and tied it to the other side of the PI. No ...

That's a good idea. The Maz has just too much gain for me to use as a single channel (I'm not a volume control kinda guy). Please post results! Will do! I'm documenting my build over here: http://www.guitargear.net.au/discussion/index.php?topic=27783.0 Coincidently I recently read Doc Z had built a...