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Old 20th November 2002, 06:48 PM   #11
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Default FLAMIN' FIREWALL.

Hi Dave,

Guess it was an open door.

I'm pretty sure it's the firewal in the router acting up on me.
Since that sits with Siemens I'll have to ask them for a dedicated port.
You know these guys,they're paranoid as hell.

Thanks for posting the piccies,
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Old 20th November 2002, 06:51 PM   #12
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And the other one. I think Frank intended on sending a power supply but this is another example of PP EL34.

dave
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File Type: gif el34_ecc83_pp.gif (20.4 KB, 615 views)
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Old 20th November 2002, 06:59 PM   #13
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Now both those circuits have too many ECC83s in them for my taste (i know you have new ECC83s -- what kind, on eBay they may fetch enuff to pay for the iron -- especially if they have little diamonds on the bottom).

Here is what i'm going to base my Dyna ST70 on:

Click the image to open in full size.

this schema and a couple accompanying ones (and a picture) can be found at the http://www.vacuumstate.com/schematics.htm]Vacuum State[/URL] web site (you will have to scroll down a bit.

dave
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Old 20th November 2002, 07:16 PM   #14
SY is offline SY  United States
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"Boucles de contre-rčaction" sounds sooooo much more romantic than "feedback loops.
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Old 20th November 2002, 07:26 PM   #15
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Default CHEVEUX BOUCLES.

Hi,

Quote:
And the other one. I think Frank intended on sending a power supply but this is another example of PP EL34.
Correct,only I didn't want to chop of the circuit part since it may be usefull to others.
Naturally it will need some mods to work with the first circuit and I'd put some bigger caps behind the chokes.
This one circuit that benefit from the brute force approach especially when crossing to Class B operation.

Sy,
Quote:
"Boucles de contre-rčaction" sounds sooooo much more romantic than "feedback loops.
Charmant,no?

All,

If anyone needs a translation of the french text under that first circuit I'll be happy to do it.

Cherio,
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Old 20th November 2002, 07:38 PM   #16
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Default Hey, talk about info!

Wow, thanks guys! And the circuits don't look that bad to build! Now, just to choose which one to do...

As far as the tubes...been a while since I looked. From what I can remember about the ECC83's, they are not "Matched" or in any order. Darn can't remember what make. Put it to ya this way, I have approx 20 of them. They actually can from Luxman Canada's service depo.

The EL34's approx. 15-20. I know that those are not in matched pairs. What make are they, well they say Luxman directly on them...so who ever they used back then.

Frank, never seen anything like that pre-stage before...4 tubes?

Rino Odorico
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Old 20th November 2002, 07:42 PM   #17
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Ah, Frank, I wouldn't have guessed that you are a Walloon. And even if a Flem speaks French, he won't admit it.
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Old 20th November 2002, 07:56 PM   #18
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Default MATCH

Hi Rino,

Quote:
Frank, never seen anything like that pre-stage before...4 tubes?
Actually what you see are just two 12AX7As',each contains two triodes that should be matched already internally.
The diagram you see is very well thought out and is known to be able to drive even difficult loads with ease.

The EL34s' should be matched for optimum performance.
Maybe ask a dealer to do that for you against a nominal fee?

Yur Lux tubes are likely to be Japanese jobs built by Matushita,NEC or Toshiba depending on age.

Sy,

Mon ami,you izz wrong in yourrrr assumption.
Je suis Flemish,and proud of it.

Quote:
And even if a Flem speaks French, he won't admit it
Fact is most Flems do speak French whereas very little Wallons speak Flemish.
Put a Wallon and a Flemish guy together and within a second or two they'll speak in french to each other,never,never the other way around.

Cheers,
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Old 20th November 2002, 08:14 PM   #19
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Thanks for the schematics guys!
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Old 20th November 2002, 08:17 PM   #20
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Default Great!

Great, should have known...as per the reading I have been doing..."some triodes will actually be doubled internaly" or something like that (can't remember the words perfectly, but I get the jist).

Looks like a great starter amp Frank. Hate to bother you about it, but when I print it...can't really read it very well. Could you if possible (please) e-mail it to me? Now here's the topper...and anything else you have on it?

rodorico@ca.telus.com
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