Overdrive Special, Steel String Singer, Dumbleland, Odyssey, Winterland, etc. -
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markusw
Posts: 452 Joined: Tue Sep 26, 2006 5:10 pm
Location: Vienna/Austria
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by markusw » Tue Dec 06, 2011 1:34 pm
Thanks for sharing!
Great sound and playing!
Do you have more clips?
May I ask one question: is it really 2-4 µF (not nF?) from EL84 Anode to gnd?
Peace,
Markus
hywelg
Posts: 92 Joined: Mon Apr 14, 2008 9:08 pm
Location: Nottingham UK
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by hywelg » Tue Dec 06, 2011 2:07 pm
This is really interesting. I had been hoping that something like this would come along, but had just about given up. I was intending to get one of these
http://www.ampmaker.com/store/Double-Si ... ifier.html
and had been thinking about how to add in an o/d section.
Since I'm not terribly knowledgeable about things electronic, and I've only ever built kits, a scratch build is probably beyond my abilities, but I think I could just about manage to do something like this especially if I could use the output section of the Double Six kit.
honeydip
Posts: 28 Joined: Sun Oct 29, 2006 10:20 am
Location: Northern Germany
Contact:
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by honeydip » Tue Dec 06, 2011 6:34 pm
Markus, you are right it's 2 to 4nF depending on your Taste.
Thank you for the correction.
At the moment I don't have more Clips available. What are you interested in?
@10thTx: could you correct the schematics accordingly?
Thanks in Advance.
Honeydip
No distortion means to tone.
stiltamp
Posts: 84 Joined: Sun Jun 11, 2006 6:11 pm
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by stiltamp » Tue Dec 06, 2011 11:34 pm
Thank you for the information.
The PT I have taken out of an old Radio
How much is the secondary HT Voltage value of it?
markusw
Posts: 452 Joined: Tue Sep 26, 2006 5:10 pm
Location: Vienna/Austria
Post
by markusw » Wed Dec 07, 2011 10:53 am
honeydip wrote: Markus, you are right it's 2 to 4nF depending on your Taste.
Thank you for the correction.
At the moment I don't have more Clips available. What are you interested in?
Honeydip
If you happen to have the chance to record a clip with Strat that would be great.
One more question: how do you like the tone control of the clean channel when in OD?
Thanks again for sharing your work!
Regards,
Markus
Structo
Posts: 15446 Joined: Wed Oct 17, 2007 1:01 am
Location: Oregon
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by Structo » Wed Dec 07, 2011 3:13 pm
2-4µF on the cap on the EL84 plate to ground.
Tom
Don't let that smoke out!
10thTx
Posts: 1864 Joined: Sat Dec 30, 2006 1:13 am
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by 10thTx » Wed Dec 07, 2011 3:52 pm
2-4µF on the cap on the EL84 plate to ground.
What does that mean?
Per earlier post request, ............... I already changed the schematic to reflect a .002-.004 cap from EL84 plate to ground?
Markus, you are right it's 2 to 4nF depending on your Taste.
What should it be?
With respect, 10thtx
honeydip
Posts: 28 Joined: Sun Oct 29, 2006 10:20 am
Location: Northern Germany
Contact:
Post
by honeydip » Wed Dec 07, 2011 4:12 pm
I'm sorry, you are right and I was blind
The schematic is correct.
Thank you.
Honeydip
No distortion means to tone.
10thTx
Posts: 1864 Joined: Sat Dec 30, 2006 1:13 am
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by 10thTx » Wed Dec 07, 2011 4:32 pm
I'm sorry, you are right and I was blind
The schematic is correct.
I am understanding this to be that the
currently posted schematic is correct? I changed it to the current one
after you requested me to do so.
Just post a reply if it needs to be changed from the current schematic, otherwise, I will presume it is currently correct.
Thanks, 10thtx
Structo
Posts: 15446 Joined: Wed Oct 17, 2007 1:01 am
Location: Oregon
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by Structo » Wed Dec 07, 2011 6:11 pm
Oh Snap!
Sorry my bad, I missed the n part on the 2-4
Which translates to .002-.004µF
Us Yanks aren't used to nano farads so much as micro and pico.
Tom
Don't let that smoke out!
wicker
Posts: 182 Joined: Thu Oct 01, 2009 6:43 pm
Location: Poland
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by wicker » Wed Dec 07, 2011 8:23 pm
Structo wrote: Us Yanks aren't used to nano farads so much as micro and pico.
I've noticed that, I always did not understood why the hell, instead od 0.1u couldn't be 100n
Paul
alvarezh
Posts: 461 Joined: Thu Oct 18, 2007 11:11 am
Location: Santo Domingo, D.R.
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by alvarezh » Fri Dec 09, 2011 2:53 pm
Nice sounding little amp, thanks for sharing. Thank you 10thtx for the drawings.
A couple of points of interest on the drawings:
1) I do not see the 220k/500pF that stands between the volume wiper and grid (pin 7) of V1b on the layout. It's on the amp's picture so it should be there.
2) The trim pot entrance value to V2a grid (pin 2) is shown as 100k on the schematic, it's 220k on the layout. Which is correct?
Thanks in advance.
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Horacio
Play in tune and B#!
10thTx
Posts: 1864 Joined: Sat Dec 30, 2006 1:13 am
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by 10thTx » Fri Dec 09, 2011 4:18 pm
Go with the schematic which should be correct.
100k trim pot
220k/500p can be placed on the volume pot wiper or on the tube socket V1-7.
I don't actually plan on building this amp even though it's a great amp. I simply tried posting a schematic that was easier for others to read.
With respect, 10thtx
alvarezh
Posts: 461 Joined: Thu Oct 18, 2007 11:11 am
Location: Santo Domingo, D.R.
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by alvarezh » Fri Dec 09, 2011 4:33 pm
Thank you for clarifying 10thtx, and thanks again for taking your time to make the drawings.
All the best.
Horacio
Play in tune and B#!