Hi folks
A few pics of a 6v6 silver jubilee built around 18W iron underway. Loosely based on the layout @dorrisant provided (thanks!), with most parts from Tube-Town and what I have lying around.
I had some original grey Marshall tolex from the early 90s to use and it just looks odd without the logo - figured there is enough here to indicate it's not trying to be the real thing.
20W Silver Jubilee Build
Moderators: pompeiisneaks, Colossal
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20W Silver Jubilee Build
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- Colossal
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Re: 20W Silver Jubilee Build
Looks great! That'll be a fun amp to play.
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Re: 20W Silver Jubilee Build
I built a 6V6 Plexi many years ago. It ran at 440V on the plates (JJs) and used a 7k6 20W Marshall OT. Fantastic sounding amp. I would probably go with the 8k taps.
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- dorrisant
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Re: 20W Silver Jubilee Build
Very, very nice! I had to do a double take.
"Education is what you're left with after you have forgotten what you have learned" - Enzo
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Re: 20W Silver Jubilee Build
Thanks Dorrisant. It was your AO conversion that inspired me.
The Tube Town 18W extended PT has dual heater taps so I split the pre/power amp runs, elevating the preamp heater.
I powered the 12V relay using the 8V winding with the voltage doubler arrangement, like the Dumble 124.
The faceplate is the TubeTown "Silver High Gloss / Black" which looks great - it scratches more easily than others I've had. If anyone wants the artwork file, please PM me.
I had a 100Hz hum issue that Steve, Glenn, Bepone, and Martin helped diagnose in this thread (thank you all)
If I were to build it again, I'd put the rectifier, bias and relay power together on a board on the side like a Dumble, and rethink the capacitor placement - especially the preamp node sitting under the board.
Here's a vanity shot of the finished amp and it sounds as I had hoped - similar at lower volume to the original 2555 I have for now.
The Tube Town 18W extended PT has dual heater taps so I split the pre/power amp runs, elevating the preamp heater.
I powered the 12V relay using the 8V winding with the voltage doubler arrangement, like the Dumble 124.
The faceplate is the TubeTown "Silver High Gloss / Black" which looks great - it scratches more easily than others I've had. If anyone wants the artwork file, please PM me.
I had a 100Hz hum issue that Steve, Glenn, Bepone, and Martin helped diagnose in this thread (thank you all)
If I were to build it again, I'd put the rectifier, bias and relay power together on a board on the side like a Dumble, and rethink the capacitor placement - especially the preamp node sitting under the board.
Here's a vanity shot of the finished amp and it sounds as I had hoped - similar at lower volume to the original 2555 I have for now.
You do not have the required permissions to view the files attached to this post.