50w 102 style build

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rogb
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Joined: Fri Apr 02, 2010 9:56 am
Location: London, England

Re: 50w 102 style build

Post by rogb »

Guitarman18 wrote:Rog, you have made some things of beauty there, I'm loving the black suede! If it sounds half as good as it looks, it must sound killer!

Congrats on yet another great build, you must be building up quite a collection?

All the best,

Paul.
Thanks Paul, I have never forgotten your kindness way back when you let me have a couple of RN65s :D

I am hoping to get in the studio and lay down some tracks before the summer. My favourite vocalist has gone off to live in Brazil so I will get him to do his parts in June when he returns for a holiday.

I like the Marshall and 102 together but the 102 really is special. Very responsive, very touch sensitive. Just need to tune in the OD a little more -hopefully the NOS preamp tubes will help.
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rogb
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Re: 50w 102 style build

Post by rogb »

Added the waterslide logo.
It did have a # before the 102 but it disintegrated.:oops:
I got another one on the way but I may leave this for now as it looks OK
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Last edited by rogb on Wed Mar 13, 2013 10:16 pm, edited 1 time in total.
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David Root
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Re: 50w 102 style build

Post by David Root »

Good looking build Roger! I think we will see more discussion on this classic vs. precision PS issue!
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M Fowler
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Re: 50w 102 style build

Post by M Fowler »

Nice pair of killer amps great job. :)
dimitris
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Re: 50w 102 style build

Post by dimitris »

Very nice build Roger.Did you use the 100w values for the nfb circuit(4k7,4 ohm tap) or have you downscale it for this 50w version?
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rogb
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Re: 50w 102 style build

Post by rogb »

Thanks Mark, appreciate your comments and help esp. with the 2204. :)

Dimitris, I think I ran through a whole bunch from 2k2 up to 8K. I even put a trim pot in and dialed it until I liked it. I think it came out that I liked 3k3 up to 4k7. I can't remember what I settled on now until I pull the chassis, I think it was 3k3.
dimitris
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Location: Greece

Re: 50w 102 style build

Post by dimitris »

Thanks Roger.I guess that you used the 4 ohm tap.I'm building a 50W myself and i am going to experiment with a potentiomer too.
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rogb
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Re: 50w 102 style build

Post by rogb »

dimitris wrote:Thanks Roger.I guess that you used the 4 ohm tap.I'm building a 50W myself and i am going to experiment with a potentiomer too.
It was 3K4 on the 4Ohm tap, I checked it.
Good luck with yours.
My rig is going to the rehearsal rooms for 3 hours tomorrow for a full workout - ear protection going too :wink: :D
dimitris
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Location: Greece

Re: 50w 102 style build

Post by dimitris »

Thanks again Roger
cheatingonguitar
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Joined: Wed Mar 20, 2013 12:28 am

Re: 50w 102 style build

Post by cheatingonguitar »

That thing looks devious!

Where did you get all of the parts? Chassis? Stand offs? Boards etc?

Did you punch all the eyelets yourself and holes in the chassis yourself?


-Z
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