Search found 109 matches

by jcat5503
Tue Jul 09, 2013 1:14 pm
Forum: Technical Discussion
Topic: VVR..
Replies: 9
Views: 1748

Re: VVR..

I will probably end up scaling the whole amp, since there's no master. I don't feel like adding a PPIMV either..

Hopefully it retains the feel and tone, just reduces the volume some.
by jcat5503
Mon Jul 08, 2013 4:58 pm
Forum: Technical Discussion
Topic: VVR..
Replies: 9
Views: 1748

VVR..

I've got a Dr Z Mazerati V2 (cathode bias el84 quad) that I'm going to add a VVR to. I bought the kit from Dana Hall My question is, what's the best way to do it? Scale the whole amp, just the power section, or the power and PI.. Any help is much appreciated! Cheers! Btw the amp has negative feedbac...
by jcat5503
Wed Jun 12, 2013 2:38 pm
Forum: Technical Discussion
Topic: Shipped a guy my Badcat Cub and now it's screwed up.
Replies: 2
Views: 762

Shipped a guy my Badcat Cub and now it's screwed up.

I shipped a guy my Badcat Cub II. It's the Samson era one with the focus/spectrum switch. He says that when you strike a chord it makes a loud crackling/buzzing with lots of static. I'm assuming its power tubes? Maybe the took a hard hit during shipment? Any help would be much appreciated! Cheers!
by jcat5503
Tue Feb 19, 2013 9:49 pm
Forum: Trainwreck Discussion
Topic: If Trainwreck made a wooden 1x12 combo..
Replies: 11
Views: 2130

If Trainwreck made a wooden 1x12 combo..

What would it look like? I'm very curious!!

I want to build an Express 1x12 combo, but I'm not sure how to tell the cabinet maker to build it..

Cheers!
by jcat5503
Tue Feb 05, 2013 3:18 pm
Forum: Technical Discussion
Topic: Thinking of building a 6v6 powered Matchless Clubman
Replies: 11
Views: 2360

Thinking of building a 6v6 powered Matchless Clubman

I've been wanting to build a 6v6 powered Clubman for awhile. The pentode ef86 second stage seems pretty cool. I heard an el34 version that sounded killer but was stupid loud. I think the 6v6's would offer a little less volume. Plus, I love the way they break up.. I've got a schematic. Any changes i ...
by jcat5503
Fri Nov 09, 2012 3:40 pm
Forum: Technical Discussion
Topic: PCB Design Software for Tube Amps?
Replies: 18
Views: 9578

Re: PCB Design Software for Tube Amps?

Anyone else have experience with this? I've got a design I've worked up and i would like to have a pcb made for it..
by jcat5503
Mon Sep 26, 2011 5:43 pm
Forum: Technical Discussion
Topic: Spitfire & Lightning schematics - screen supply
Replies: 32
Views: 18350

Re: Spitfire & Lightning schematics - screen supply

Jason, I'm probably the only person that enjoys the Ken Watt's Spitfire stock no mods. I do agree the Fat Boost switch doesn't add much with the cap values used. But the rest of the circuit I left stock. Mark What cap value would you suggest in it's place then? What do you think a tone bypass would...
by jcat5503
Mon Sep 26, 2011 5:03 pm
Forum: Technical Discussion
Topic: Spitfire & Lightning schematics - screen supply
Replies: 32
Views: 18350

Re: Spitfire & Lightning schematics - screen supply

I'm thinking of building a spitfire from the Watt's document

What mods would yall suggest?

I'm curious if a tone bypass switch would be cool..
by jcat5503
Wed Sep 14, 2011 2:08 pm
Forum: Technical Discussion
Topic: Favorite 2 tube preamp, 2 el84 amps?
Replies: 27
Views: 7787

Re: Favorite 2 tube preamp, 2 el84 amps?

surfsup wrote:What about the xitsamps x10 clone posted in the TW forum. The schematic has been updated with accurate values.
Oh yeah?? That sounds pretty sweet!! I'll try and find it.. Those things sound killer!
by jcat5503
Wed Sep 14, 2011 1:50 pm
Forum: Technical Discussion
Topic: Favorite 2 tube preamp, 2 el84 amps?
Replies: 27
Views: 7787

Re: Favorite 2 tube preamp, 2 el84 amps?

El_Martin wrote:Hi!

What about the daisycutter?
http://ax84.com/static/daisycutter/18w_ ... 100422.jpg

If your in to the gainy side of life...

Ciao
Martin
Yeah Randy is a great builder and designer, but I'm looking for something with a decent amount of headroom and a little chime..
by jcat5503
Thu Sep 08, 2011 8:42 pm
Forum: Technical Discussion
Topic: Favorite 2 tube preamp, 2 el84 amps?
Replies: 27
Views: 7787

Re: Favorite 2 tube preamp, 2 el84 amps?

I converted a Hammond AO-35 reverb amp into a two 12AX7, pair of EL84s and 5Y3. The V1 is wired parallel and this 18w amp will peel paint off the wall, so I put in a 5751 instead. :lol: Mark I have one of the same exact amp I am going to use the iron from probably. Was your PT pretty hot? This one ...
by jcat5503
Fri Sep 02, 2011 2:40 am
Forum: Technical Discussion
Topic: Favorite 2 tube preamp, 2 el84 amps?
Replies: 27
Views: 7787

Re: Favorite 2 tube preamp, 2 el84 amps?

I'm putting the final touches on an 18 watt that started as an 18 watt lite, I then modded it to a superlite. Not satified with that, I have since tweaked it to a Mazerati GT preamp w/ TMB and small changes into the superlite power section. It has a cathode bypass switchable boost, bright switch, a...
by jcat5503
Thu Sep 01, 2011 6:37 pm
Forum: Technical Discussion
Topic: Favorite 2 tube preamp, 2 el84 amps?
Replies: 27
Views: 7787

Re: Favorite 2 tube preamp, 2 el84 amps?

Yes two tubes total. One for preamp and one for PI
by jcat5503
Thu Sep 01, 2011 4:17 pm
Forum: Technical Discussion
Topic: Favorite 2 tube preamp, 2 el84 amps?
Replies: 27
Views: 7787

Favorite 2 tube preamp, 2 el84 amps?

I am looking for a new amp to build and it will be very compact and I want to use 2 tubes for the preamp.. I'll use two el84's for about 18 watts..

I'm thinking maybe an EF86 (voxish setup) into either a voxy or marshally PI setup..

The songwriter looks interesting as well..

Cheers