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1968 Marshall SuperBass Reworking

Posted: Mon May 04, 2015 8:22 pm
by echoplexi1974
Here is the story on this amp: http://forum.metroamp.com/viewtopic.php?f=49&t=44619 I should have started this thread here to begin with... :lol:

Here are some pictures of the amp in it's current state. Don't laugh at those big Iskras, those are the only resistors I could find at the time. You guys bought up all the 1/2Ws! I think they look kinda cool actually :lol: Remember this is a players amp! In hindsight I should have never sent this to the plexi palace.... :palm: But Metro didn't exist at the time :( I've learned a lot here at the Metro Forum. You guys are the best! :toast:

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Re: 1968 Marshall SuperBass Reworking

Posted: Tue May 05, 2015 8:10 am
by rgalpin
thanks for posting the gut shots. the diodes in the rectifier - are the leads wrapped? never seen a rectifier section that looked like that - can't tell what i am seeing.

Re: 1968 Marshall SuperBass Reworking

Posted: Tue May 05, 2015 8:56 am
by echoplexi1974
Yeah, just insulation I stripped off some 22awg wire. It's not pretty but well insulated. :D

Re: 1968 Marshall SuperBass Reworking

Posted: Tue May 05, 2015 9:58 am
by Strat78
The pics are great. I've always had a thing for those 2w NOS resistors whether Iskra or Piher. They definitely don't hurt the tone and might even improve it! You pretty much have the specs and brands that we see in the 12301 pics, but that CC 910R V1B might be sweetening things nicely. The power board is ugly as hell, but there are some good things coming from those little caps, makes me question the impulse to always throw in NOS or proper looking caps. :scratch: It's the tone that matters most. Pink wire yay! Did you guys know that the color pink was traditionally a masculine color up until the mid 20th century. :)

Re: 1968 Marshall SuperBass Reworking

Posted: Tue May 05, 2015 10:44 am
by echoplexi1974
Yeah, the 910 was a happy medium between 820 and 1.1k. That was the ticket.

Strat78, where would I find NOS filter caps? I have had absolutely no luck in finding any other than Valvestorm. I kinda gave up looking.... :(

Re: 1968 Marshall SuperBass Reworking

Posted: Tue May 05, 2015 1:54 pm
by Strat78
You just have to get the word out and also scour eBay etc, until something comes up. It took StarGuitar and myself just about a year to find most of the NOS caps and resistors for his restoration project. But like you said, you want that amp to be a players amp, and those caps in there now are really creating a great feel to the amp. Maybe just get some old leaky period correct caps for the top of the board just for show, then just hide those small caps under the board. :hide:

Re: 1968 Marshall SuperBass Reworking

Posted: Wed May 06, 2015 9:50 pm
by Strat78
I know you don't need these, but here are some cool NOS options for couplers!
http://www.ebay.com/itm/3-vintage-unuse ... 1e9e2e4112

Re: 1968 Marshall SuperBass Reworking

Posted: Thu May 07, 2015 8:55 am
by echoplexi1974
Cool! Thanks man! :D