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1  American Style / 5E8A Tweed Twin / Re: 5U4G on: June 12, 2015, 11:50:37 AM
Those are diodes, not resistors. They are being used as a fail safe for the rectifier tubes. You can read about it here:
P.S. Sorry to reply so late but this board has been very slow so I don't stop by very often.
2  British Style / 18 Watt / Re: how to get lower volume tube breakup with marshall models? on: March 11, 2013, 05:28:31 AM
It's not a hair worth splitting.

   Agree 100%. But the OP said:
I wonder if either of these amps can be had with a 1/2 power switch to turn off one of the power tubes? 

Then Texass said:
I also had the 1/2 power option added (which answers one of your questions). 

   I just thought it best to point out to those of us who are not technically inclined that no power tubes are being shut down with the switch.
3  British Style / 18 Watt / Re: how to get lower volume tube breakup with marshall models? on: March 10, 2013, 04:02:10 AM
I also had the 1/2 power option added (which answers one of your questions). 

      I'm pretty sure you are referring to a Pentode to Triode switch. Not the same thing as a 1/2 power switch. A 1/2 power switch in an 18 watter would require going from push-pull to single ended output. That would be nuts.
4  American Style / PrinzeTone / Re: New PrinceTone Working on: November 03, 2012, 02:01:51 PM
tooloud, I was excited to read your post as I have a couple of AO-29 chassis in my basement and I was wondering if they could be used for this build. Were you able to use the output transformer from the AO-29 or did you have to get another? I'm a bit confused about the AO-29 as some models seem to output to a standard speaker while others use field coil speakers. I'm not sure what I have or if it will work. Any pointers you can offer would be greatly appreciated! Smiley
5  British Style / 18 Watt / Re: 18 Watt TMB Effects Loop? on: February 06, 2012, 05:25:37 AM

The tube names shown at the bottom of the schematic show a slash between two different tube names.  Does this mean that either tube can be used interchangeably?  Should one stick to the tubes on either the right side or the left side of the slash?

    The name on the left is the British designation, the name on the right is the American. An ECC83 is a 12AX7 and an EZ81 is a 6CA4. Same tube, different name, depending on country of origin. Many tubes are marked with both.
6  Website, Store / Support / Re: 1st power up with Variac on: May 19, 2011, 07:00:19 AM
Paul Ruby amps has a great start up article here: http://paulrubyamps.com/info.html
7  Website, Store / Support / Re: I confess I did something really stupid... on: February 21, 2011, 04:24:48 PM
Cool! Cool (I love a happy ending)
8  Website, Store / Support / Re: I confess I did something really stupid... on: February 05, 2011, 07:25:46 AM
Is there a simple test I can do to tell if the OT is blown, or maybe test a few caps or resistors? 
     Yes! Yes there is:
    Article by the venerable RG Keen.
9  American Style / 5E3 Tweed Deluxe / Re: 5e3 Power Trannie getting hot. on: January 28, 2011, 11:43:05 AM
You wouldn't happen to be running a Sovtek 5Y3 for the rectifier would you?
My understanding is that the Sovtek is not a "real" 5Y3 and will produce some funky voltages.
10  Website, Store / Ceriatone.com / Re: Why no amp kits with reverb? on: September 03, 2010, 05:36:01 PM
I went down that road here: http://ceriatoneforum.com/index.php?topic=1780.0
Personally,  I feel it's a mistake to not offer the Fender reverb circuits but what the heck do I know?  Undecided
11  Website, Store / General / Re: Power Scaling? on: July 25, 2010, 04:34:20 AM
Yes! Check out Alwalt's thread:
12  Website, Store / Ceriatone.com / Re: Parts used in Ceriatone: Explained on: July 07, 2010, 12:46:16 PM

We are also working on custom film caps now, more mustard type. Hopefully, that'd make people happier. I guess Mallory 150 is out of fashion? Smiley

   The "New Fashion" :
13  Website, Store / General / Re: Does anyone know.......... on: June 26, 2010, 05:42:35 AM
My guess would be price...

...Niks philosophy is best quality for fair price. Reverb would definitely increase the price quite a bit.
This sounds plausible. Sad
Reverb significantly complicates the design...extra transformer, more tubes, revoicing the amp, etc. 

A circuit like the Fender AB763 found in the blackface reverb combos is a lot more complex and would require significantly more time to build than anything they currently offer.  I think they are running at capacity now and you would have to wait until they could ramp up for more production.

More complex than the Overtones? Really? You may be correct, Nik stated just a little while ago that he completed a layout for a Vox AC30 but then shelved the idea as being too complicated. Cry

Every single amp he current offers is either a copy or or derived from amps circuits that never had reverb, the Marshall, the Tweeds, the D*mbles, etc.  To add reverb to any of his current models would completely change the amps tone and feel. 
I certainly understand not offering reverb on Marshall, Dumble, etc. but to offer a line of Fender amp kits without a single reverb circuit? Fender is the industry standard for reverb! This is a glaring omission and not an unconscious decision.
      Bottom line is that a Princeton Reverb is very high on my list for a future build and I still can't get it from my favorite amp kit supplier, Nik! Undecided
14  Website, Store / General / Does anyone know.......... on: June 25, 2010, 06:09:52 AM
Why Nik/Ceriatone is avoiding offering anything with reverb?
I'm curious but I don't want to waste Niks time with an Email.
15  British Style / 18 Watt / Re: Half power switch for 18 watt. on: February 18, 2010, 05:57:49 AM
You need a multiple of two power tubes operating in a push-pull amp.(2, 4, 6, etc.) Because a 36 watt amp has four tubes, half (two) can be shut down for half power. So no, you cannot do this with an 18 watt amp. You could do the Triode/Pentode mode switch thing but it's not really the same. I've heard good things about Mr. Hall's VVR mod, that's probably your best bet.
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