Search found 10 matches

by niversen
Tue Mar 11, 2014 6:45 pm
Forum: Vox/Hiwatt Discussion
Topic: Matchless Spitfire?
Replies: 18
Views: 8711

Re: Matchless Spitfire?

West Labs is just one guy out of his house. He's just on the other side of town from me. He's an older gentleman who, from what I can tell, used to know some of Michigan's bigger names in rock from the 70's and 80's. He's a nice guy but really quirky, so good luck on getting clear info from him on s...
by niversen
Thu Feb 20, 2014 11:15 am
Forum: Technical Discussion
Topic: Recording devices
Replies: 10
Views: 1764

Re: Recording devices

I haven't really messed with sample rate too much. I think i tried 96khz but didn't adjust my buffer size so playback was messed up. Did you mix down into 16 bit 44.1 khz? If so, did you still notice the "airiness"?
by niversen
Wed Feb 19, 2014 11:27 pm
Forum: Technical Discussion
Topic: Recording devices
Replies: 10
Views: 1764

Re: Recording devices

I use an alesis io26 running into an i5 quad core iMac. The biggest improvements I have noticed is acoustic treatment and cab/mic placement. For a little over $100 and a few hours of labor you can build some pretty effective DIY acoustic absorber panels (depending on what kind of tools you have layi...
by niversen
Tue Dec 04, 2012 11:36 pm
Forum: Technical Discussion
Topic: Cathode Biased EL34s, Transformers?
Replies: 10
Views: 2505

Re: Cathode Biased EL34s, Transformers?

I built a Rocket variant for a buddy of mine that used 2x cathode biased el34's and i used a classictone 50 watt jcm800 OT. I believe the primary impedance on that one is 3.2k. I've never heard a real Rocket or a clone in real life, but the amp i built sounds badass. And that OT is pretty competitiv...
by niversen
Wed Aug 29, 2012 2:44 am
Forum: Technical Discussion
Topic: Cathode Bypass stages for Tube Amp
Replies: 17
Views: 7245

Re: Cathode Bypass stages for Tube Amp

If by plastic you mean fizzy, you could try lowering the cathode follower resistor from 100k to 68k. That can help get a more "organic" overdrive sound. I've used that trick before with success in marshall style preamps. Might not be what you are looking for but it's an easy mod.
by niversen
Wed Aug 01, 2012 11:30 pm
Forum: Technical Discussion
Topic: 6U8A Triode/Pentode
Replies: 11
Views: 7559

Re: 6U8A Triode/Pentode

i have been thinking about tearing my 18 watt lite II down when i get it back from a buddy of mine and using a 6u8a in the preamp. my thoughts are doing an input like cliff chappel's october with a dark and bright channel with the two triodes of a 12ax7 and then have those go into the pentode of the...
by niversen
Sun Jan 08, 2012 3:54 pm
Forum: Technical Discussion
Topic: OT Wiring
Replies: 9
Views: 1599

Re: OT Wiring

if you're going to use the two 100R resistors to ground method, don't ground the center tap from the PT's heater winding. two more options to consider are the "humdinger" method, or possibly a heater elevation circuit off of a B+ node. I've never used the "humdinger" but i've read lots of people's e...
by niversen
Tue Jun 21, 2011 1:09 pm
Forum: Trainwreck Discussion
Topic: Curiosity about a 2x6v6 rocket
Replies: 15
Views: 4896

Re: Curiosity about a 2x6v6 rocket

Yep. I found structo's layout and also his modified schemo of the rocket with 2 6v6's. Anyone have any suggestions on what OT primary impedance i should shoot for getting my hands on? I'm most likely going to get the iron from edcor.
by niversen
Mon Jun 20, 2011 1:06 pm
Forum: Trainwreck Discussion
Topic: Curiosity about a 2x6v6 rocket
Replies: 15
Views: 4896

Re: Curiosity about a 2x6v6 rocket

The whole fixed bias vs cathode bias was actually another question on my mind as well. As i think about it, i imagine that cathode is probably better for getting some better overdriven tones. Did you just use the 18watt power amp and adapt it for 6v6's? I would probably go for a little higher b+ as ...
by niversen
Mon Jun 20, 2011 2:36 am
Forum: Trainwreck Discussion
Topic: Curiosity about a 2x6v6 rocket
Replies: 15
Views: 4896

Curiosity about a 2x6v6 rocket

i'm looking into doing a 20-ish watt rocket with 2x6v6's. Anyone here have a schematic for a power amp they have done this with successfully? I was looking at mark huss' 6v6 plexi and also the 20w pp power amp from the ax84 site. Any problems you guys might see with using either one of those?