preparing the 6G3 deluxe reverb build

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preparing the 6G3 deluxe reverb build

Post by Bieworm »

Hiya!

Just letting you guys know I'm about to start 2 builds in the next few days. The dual 50 plexi and a 6G3 brown deluxe reverb.
For the Dual 50 I'm going to use Sluckey's documents.
For the 6G3 I made some docs myself. To be continued....
layout 6G3 reverb execution.png
PDF drillguide 6G3 reverb.pdf
6G3 schematic with reverb.png
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Re: preparing the 6G3 deluxe reverb build

Post by geoff 1965 »

Have you got the schematic/layout for the Sluckey dual 50?
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Re: preparing the 6G3 deluxe reverb build

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geoff 1965 wrote: ↑
Fri 09/03/21 9:56 am
Have you got the schematic/layout for the Sluckey dual 50?
Yes. It's on the EL34 world site.
About the 6G3 I found out that the Down Brownie from Cutthroat sports a plexi like normal channel, so I will give that a go. There is no specific schematic, but there are build pics from those guys... seems pretty doable
That brown deluxe sounds awesome!!!
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Re: preparing the 6G3 deluxe reverb build

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Prepping the chassis to my needs. 3 extra tube holes, IEC socket, holes for reverb jacks,...
20210906_223750.jpg
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Re: preparing the 6G3 deluxe reverb build

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Got the faceplate and backpanel for the Dual 50 build. They're absolutely marvelous!!!
IMG-20210911-WA0000.jpeg
Painting the backs after lasering:
20210911_212956.jpg
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Re: preparing the 6G3 deluxe reverb build

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Prepping the Dual50...
IMG-20210920-WA0011.jpeg
IMG-20210920-WA0005.jpeg
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Re: preparing the 6G3 deluxe reverb build

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The amp part of my 6G3 build is near ready. Only have to connect the PPIMV and the smoothing cap across the PI plates.
Doing that tonight, so I can start testing after triple checking the build vs schematic.
My layout plan was really awful at the power tubes. But now it should be just fine..I hope πŸ˜ƒ
BTW, didn't connect the NFB loop just yet. Let's first find out the OT primaries are in the correct order...
20210924_065321.jpg
Oh, and I'm not adding the reverb on this amp. I bought a Surfybear FET reverb last week... awesome pedal with a built in spring tank. I gigged with it along with my non reverb tremolo TMB and it's the best ever!!! that prototype tremolo TMB is my fav amp ever! Every time I play that one I fall in love all over again and again... Sorry Josh, I don't know why...but it just sounds superior to the reverb 18W and 36W versions I built.
It just sounds immensely vintage!! listen, Jazzmaster--> surfybear--> tremolo tmb:

https://www.dropbox.com/s/yag7wd0pqs7tl ... w.m4a?dl=0
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Re: preparing the 6G3 deluxe reverb build

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Ok...here are the first sounds.
OMG!!!
https://www.dropbox.com/s/a8huzyvo2p4dt ... ..m4a?dl=0
B+ is 390V after rectification. Spec is 375V... is it all right/safe to add a 12V zener that's only 1.3 watt? I would like to put it on spec.. just for the fΒ₯ck of itπŸ™‚
20210924_232208.jpg
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Re: preparing the 6G3 deluxe reverb build

Post by JMPGuitars »

I wouldn't use less than 5W. You don't want the thing feeding your B+ to be unreliable.
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Re: preparing the 6G3 deluxe reverb build

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JMPGuitars wrote: ↑
Sat 09/25/21 8:01 am
I wouldn't use less than 5W. You don't want the thing feeding your B+ to be unreliable.
Thought so too...
Thanks
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Re: preparing the 6G3 deluxe reverb build

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Yes!!! Found some 1N5340B zeners in my stash... 2x 6V 5W should bring me there...
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Re: preparing the 6G3 deluxe reverb build

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In the mean while doing the combo shell
20210925_211012.jpg
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Re: preparing the 6G3 deluxe reverb build

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And now folks... here it izzzz:
20210926_215245.jpg
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Re: preparing the 6G3 deluxe reverb build

Post by lavrgs »

That is a beauty!!!
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Re: preparing the 6G3 deluxe reverb build

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lavrgs wrote: ↑
Tue 09/28/21 12:06 pm
That is a beauty!!!
Thanks. I think so too πŸ™‚... and it sounds delicious!!!
20210928_210916.jpg
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Re: preparing the 6G3 deluxe reverb build

Post by colossal »

Nice work, Bjorn!
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Re: preparing the 6G3 deluxe reverb build

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Here's a crappy Phone recording of it with the Celestion Alnico Cream

https://www.dropbox.com/s/quu1x8oyzqzq4 ... m.m4a?dl=0
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Re: preparing the 6G3 deluxe reverb build

Post by zaphod_phil »

That sounds great! Nice crisp high-end, almost good enough to be a Marshall 18W :) Just one question, what were you driving the input with to get that nice breakup?
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Re: preparing the 6G3 deluxe reverb build

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zaphod_phil wrote: ↑
Fri 10/15/21 12:01 pm
That sounds great! Nice crisp high-end, almost good enough to be a Marshall 18W :) Just one question, what were you driving the input with to get that nice breakup?
It's just my jazzmaster with a P90 bridge pup and the amp at 100%, both channels in parallel.
The amp is merely an addition to my rig.. ain't no chance it's going to replace my Tremolo TMB. It's not THAT good πŸ˜‰
What puzzles me is why a 20Watt fixed bias amp is not as loud as an 18W cathode biased one... same speaker.. guess it's the extended dynamics of the 18W
The 6G3 does what it does, and puts down a terrific sound. The 18W is more inpredictable and can surprise me in very nice ways. I guess the 6G3 is male and the 18W female... sexism??? Sew me... #met'oh-well
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Re: preparing the 6G3 deluxe reverb build

Post by zaphod_phil »

Bieworm wrote: ↑
Sat 10/16/21 6:01 am
zaphod_phil wrote: ↑
Fri 10/15/21 12:01 pm
That sounds great! Nice crisp high-end, almost good enough to be a Marshall 18W :) Just one question, what were you driving the input with to get that nice breakup?
Bieworm wrote: ↑
Sat 10/16/21 6:01 am
It's just my jazzmaster with a P90 bridge pup and the amp at 100%, both channels in parallel.
The amp is merely an addition to my rig.. ain't no chance it's going to replace my Tremolo TMB. It's not THAT good πŸ˜‰
zaphod_phil wrote: ↑
Fri 10/15/21 12:01 pm
You seem to have a pretty hot P90 there! :)
Bieworm wrote: ↑
Sat 10/16/21 6:01 am
What puzzles me is why a 20Watt fixed bias amp is not as loud as an 18W cathode biased one... same speaker.. guess it's the extended dynamics of the 18W
zaphod_phil wrote: ↑
Fri 10/15/21 12:01 pm
I think it's probably more because the cathode-biased 18W compresses the sound more, which will tend to make it sound louder
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