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kurtlives
 Post subject: v6
PostPosted: Sun Mar 23, 2008 10:52 pm 
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I asked a friend of mine to look at the v6 schem/layout. His is what he said.

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I like the preamp, but I'm a bit wary about the output section. Floating the cathodes of the valves that aren't used puts a large potential between the heaters and the cathodes. They really aren't designed to be used that way. And there is a bunch of stuff hanging from the grid circuits. It might not be as bad as it looks at first glance, but it certainly looks messy.

The drawing is slightly wrong. He shows the signal from the PI going to the suppressor grids of the 6V6s. It should go to the control grids. But he has the pin numbers right. Pin 5 is the control grid, so the connection will be right, even though the drawing is wrong.


Some clarification would be nice.

Thanks... :)
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coco
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PostPosted: Mon Mar 24, 2008 9:43 am 
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Numerous discussion were held on the effect of the design and several theoretical discussions as well before we tried it. We did try it several ways as well.

There have been no ill effects in almost two years so in practice it's fine.
Further, this is the same approach that Mesa took on their Blue Angel.

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coco
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PostPosted: Tue Mar 25, 2008 9:30 pm 
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Schematic updated. Thanks for the tip.

You might want to look at the DC30 schematic half power switch for another example of switching In/Out tubes.

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kurtlives
 Post subject:
PostPosted: Wed Mar 26, 2008 8:27 pm 
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8) Nice

You might want to get the resolution a bit higher on the schem. Its quite hard to read. It would also be nice if you you could make both the schem and thee layout bigger. It just a bit hard to read at the moment.

Thanks
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kurtlives
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PostPosted: Sun Mar 30, 2008 5:25 pm 
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On the layout there is a 56K and 820 resistor. On the schem they are labelled 1W on the layout they arent labelled 1W.???

Do you have a parts list?
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coco
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PostPosted: Mon Mar 31, 2008 7:51 am 
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They are 1/2 watt but 1 watt is fine too.

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kurtlives
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PostPosted: Sat Apr 05, 2008 11:00 pm 
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Another little thing the 1.5K resistors on the 6V6 tubes...can those be 1/2W?

Also is it possible to get a v6 kit which has a TMB channel, normal channel and trem?
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coco
 Post subject:
PostPosted: Sun Apr 06, 2008 7:54 am 
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kurtlives wrote:
Another little thing the 1.5K resistors on the 6V6 tubes...can those be 1/2W?


No. 2 Watt

kurtlives wrote:
Also is it possible to get a v6 kit which has a TMB channel, normal channel and trem?


TMB - Yes
Normal Channel - Yes
Tremolo - No. Unless you punch another tube hole and put the control on the back. Try a pedal or Area 51 for Trem.

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kurtlives
 Post subject:
PostPosted: Sun Apr 06, 2008 10:33 am 
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Ok thanks...You might want to labell them 2W in the layout then.

I figured you didnt have the that chassis but I wanted to be sure. I should be ordering soon. :wink:
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coco
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PostPosted: Sun Apr 06, 2008 10:58 am 
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An extra hole can always be punched if you know where you want it. But the bigger problem is that the panel has no labels for tremolo and a custom panel is quite expensive.

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kurtlives
 Post subject:
PostPosted: Sun Apr 06, 2008 12:29 pm 
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Ah its fine. I just finished a Vibro Champ. I use it for trem, it sounds so nice.

O ya the v6 layout that is in the documents forum is that sIII or Plexi voiced?
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coco
 Post subject:
PostPosted: Sun Apr 06, 2008 12:50 pm 
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sIII voiced but you can easily mod to Plexi if you follow the Plexi layout.

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kurtlives
 Post subject:
PostPosted: Mon Apr 07, 2008 5:33 pm 
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Thanks

Does the v6 have bleeders?
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kurtlives
 Post subject:
PostPosted: Thu Apr 10, 2008 9:45 pm 
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???
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coco
 Post subject:
PostPosted: Sat Apr 12, 2008 8:19 pm 
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kurtlives wrote:
Thanks

Does the v6 have bleeders?


No , but it's pretty "Bloody" good! :D

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kurtlives
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PostPosted: Sat Apr 12, 2008 10:44 pm 
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coco wrote:
kurtlives wrote:
Thanks

Does the v6 have bleeders?


No , but it's pretty "Bloody" good! :D

Haha...

Would a good wattage and resistance be for bleeders?

Also can you have a switch and jack to choose between boost and tubes?
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jcny
 Post subject:
PostPosted: Sun Apr 13, 2008 9:25 am 
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Information on the remote switches can be found here:

viewtopic.php?t=1093
(dressing room forum, topic "soft boost switching")

and here:

viewtopic.php?t=1092
18watt forum, topic "looking for pedal suggestions for sIII")

Hope this helps :D
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coco
 Post subject:
PostPosted: Sun Apr 13, 2008 10:18 am 
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Bleeder Resistor Info (used the search)

viewtopic.php?t=245&highlight=bleeder


viewtopic.php?t=245&highlight=bleeder

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