Overdrive Special, Steel String Singer, Dumbleland, Odyssey, Winterland, etc. -
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Moderators: pompeiisneaks , Colossal
Synchu
Posts: 522 Joined: Sun Mar 11, 2012 5:24 am
Post
by Synchu » Thu Jul 31, 2014 5:22 pm
mhartman wrote: Synchu wrote:
What I find out is that it has even less headroom than the standard 5E3 circuit, I build (granted the standard has 12AY7 at V1, but still I would have expected cleaner amp :/)
With PAF style pickups equipped Gibson it is already in the overdrive territory on 2.
Is that to be expected or am I missing something?
Based on Charlie's description at the beginning of this journey, I think that this might be normal. I'll have mine finished in a day or two. I'll let you know if I find the same.
Thanks, Mike. Appreciated.
That was my reading, but still I thought it will get at least to the "standard" circuit level of clean.
I will do some calculations and LTSpice model should time permits.
Niki
mhartman
Posts: 611 Joined: Sun Jun 15, 2008 5:43 pm
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by mhartman » Fri Aug 01, 2014 1:28 pm
Charlie Wilson wrote: Hello,
All of the orange drop caps were the 716 series.
CW
Thanks Charlie!
Structo
Posts: 15446 Joined: Wed Oct 17, 2007 1:01 am
Location: Oregon
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by Structo » Tue Mar 10, 2015 4:39 pm
What did most of you use for the Power Transformer?
Standard Tweed Deluxe specs?
Or blackface values?
Tom
Don't let that smoke out!
Synchu
Posts: 522 Joined: Sun Mar 11, 2012 5:24 am
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by Synchu » Tue Mar 10, 2015 6:22 pm
Tweed Deluxe PT here.
Niki
jelle
Posts: 2378 Joined: Sat Feb 04, 2006 7:55 pm
Location: New Jersey
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by jelle » Tue Mar 10, 2015 6:29 pm
I used the Classictone 5E3 set.
Jelle
Blackburn
Posts: 1765 Joined: Tue Feb 05, 2013 8:39 pm
Location: Texas
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by Blackburn » Tue Mar 10, 2015 7:18 pm
jelle wrote: I used the Classictone 5E3 set.
Jelle
Same here.
Structo
Posts: 15446 Joined: Wed Oct 17, 2007 1:01 am
Location: Oregon
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by Structo » Tue Mar 10, 2015 7:38 pm
Thanks Gents!
Tom
Don't let that smoke out!
rogb
Posts: 1088 Joined: Fri Apr 02, 2010 9:56 am
Location: London, England
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by rogb » Tue Mar 10, 2015 8:42 pm
Classictone 5E3 for me too - I used the 40-18078 (I used the 330-0-330 winding) and 40-18090 4-8-16 OT - it really sounds good to me.
jelle
Posts: 2378 Joined: Sat Feb 04, 2006 7:55 pm
Location: New Jersey
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by jelle » Wed Mar 11, 2015 1:30 am
jelle wrote: I used the Classictone 5E3 set.
Jelle
Structo
Posts: 15446 Joined: Wed Oct 17, 2007 1:01 am
Location: Oregon
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by Structo » Wed Mar 11, 2015 2:35 pm
Sorry my bad, 40-18021 it is.
Tom
Don't let that smoke out!
Structo
Posts: 15446 Joined: Wed Oct 17, 2007 1:01 am
Location: Oregon
Post
by Structo » Fri Mar 13, 2015 7:28 pm
Is everybody using a 5Y3 or GZ34 with that transformer?
Tom
Don't let that smoke out!
Structo
Posts: 15446 Joined: Wed Oct 17, 2007 1:01 am
Location: Oregon
Post
by Structo » Thu Apr 16, 2015 11:11 pm
I have my Tweedle D amp completed, doing voltage testing now.
With a JJ 5Y3 and JJ 6V6GT power tubes
V1- GE short plate 12ax7
V2- Sylvania long plate 12ax7
B+1 384v
B+2 346v
B+3 303v
B+4 281v
V1 plates 175/ 177
V2 plates 204/ 250 ( I may have to double check that reading or replace the tube.
I used a 330R 10w cathode resistor initially.
With 24v on the cathode resistor I come up with 13.5w
I will probably do a stack like the original to better dissipate heat.
Tom
Don't let that smoke out!
jelle
Posts: 2378 Joined: Sat Feb 04, 2006 7:55 pm
Location: New Jersey
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by jelle » Fri Apr 17, 2015 12:55 am
How does it sound?
Structo
Posts: 15446 Joined: Wed Oct 17, 2007 1:01 am
Location: Oregon
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by Structo » Fri Apr 17, 2015 11:00 pm
I tried it with a Strat with a bridge humbucker and it sounded pretty good.
My voltages are within range of the Dumble amp ~5-10v lower
With the 330R cathode bias resistor I came up with 26 watts or 13.1w per tube.
Is that a problem?
How much current are you guys running on the cathode?
I am using the JJ 6V6's
Tom
Don't let that smoke out!
roknroll
Posts: 225 Joined: Thu May 18, 2006 2:13 am
Location: New York
1 others liked this
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by roknroll » Sun Apr 19, 2015 3:34 pm
I know I am a bit late in the conversation but the excitement level here has me baffled and intrigued. There are no clips that I have found or videos any where. What gives?