My Reduction

corndog71 · 10164

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Offline corndog71

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Reply #15 on: March 13, 2014, 03:33:02 PM
That's it.  That's another item that needs replacing.  I've been using it for around 10 years.  I've used it sparingly and it still sounds decent but I would really love to hear another cartridge. Hmmm...that could be a goal for this year. 

The world was made for those not cursed with self-awareness.

Rob

Offline BNAL

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Reply #16 on: March 14, 2014, 03:26:56 AM
Rob,

An option for your cartridge is to replace the stylus.
I have a Shure M97eX with JIM SAN stylus and it was a major upgrade over the factory stylus.
http://stylus.export-japan.com/product_info.php?products_id=1524

Brad Nalitt
Iron Upgraded S.E.X. Amp 2.0
Foreplay III
Quickie w/PJCCS
Eros Phono
Blumenstein Orca Speakers, Baby Benthic Subs
S.E.X.y Speakers W/FT17H Horn Tweeters
Thorens TD 125 MkII W/ Shure M97xE JICO SAS Stylus

Offline corndog71

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Reply #17 on: March 22, 2014, 11:54:27 AM
I took advantage of a sale Partsconnexion was having on Clarity TC caps and picked up a pair of 110uF 700V film caps.  The idea was to replace the last 220uF power supply cap.  I tried to get a single 220uF cap but those were all sold out.  Anyway, I paralleled the two caps.

(https://forum.bottlehead.com/proxy.php?request=http%3A%2F%2Fi576.photobucket.com%2Falbums%2Fss207%2Fcorndog642%2FBottlehead%2520Reduction%2FIMG_8645_zps6889cca6.jpg&hash=2859e3bc143ade6228cd0ac9f0cc8863bb3507b0)

They took up a bit more room than I had hoped for.

(https://forum.bottlehead.com/proxy.php?request=http%3A%2F%2Fi576.photobucket.com%2Falbums%2Fss207%2Fcorndog642%2FBottlehead%2520Reduction%2FIMG_8648_zpsf3b10990.jpg&hash=4a2b8c5d1fcc5acaf699e54f8dc012e3486338ec)

I grabbed my Sex Amp box to see if stacking them might be a viable alternative.  It would but then I would need another box for my sex amp.

(https://forum.bottlehead.com/proxy.php?request=http%3A%2F%2Fi576.photobucket.com%2Falbums%2Fss207%2Fcorndog642%2FBottlehead%2520Reduction%2FIMG_8649_zps07d99516.jpg&hash=20b43e24bbb829621ef41d561489c6848085bc37)

For the time being I just wired up a little extra wire and am letting them lay loose.  This is temporary until I can come up with a better arrangement.

(https://forum.bottlehead.com/proxy.php?request=http%3A%2F%2Fi576.photobucket.com%2Falbums%2Fss207%2Fcorndog642%2FBottlehead%2520Reduction%2FIMG_8656_zps419e44a1.jpg&hash=e140272e3d4cd6642f633db1b97ea2a1fe39d720)

(https://forum.bottlehead.com/proxy.php?request=http%3A%2F%2Fi576.photobucket.com%2Falbums%2Fss207%2Fcorndog642%2FBottlehead%2520Reduction%2FIMG_8659_zps0224118e.jpg&hash=e31c99f62e314e1d656f90f188f78472ba2aae1d)

I'm not certain the change is obvious but I can't complain.  Soundstage width and separation of instruments is fantastic! 

The world was made for those not cursed with self-awareness.

Rob

Offline Paul Birkeland

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Reply #18 on: March 22, 2014, 08:18:42 PM
I'd order up a 10" x 12" base, then have an extra aluminum plate that's 4" x 10" made to fit next to the Reduction chassis in the base.  That would give you some room for mounting caps (pop some holes in the extra chassis plate to let them poke through).

-PB

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline corndog71

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Reply #19 on: March 25, 2014, 07:10:15 AM
Quote from: Caucasian Blackplate on March 22, 2014, 08:18:42 PM
I'd order up a 10" x 12" base, then have an extra aluminum plate that's 4" x 10" made to fit next to the Reduction chassis in the base.  That would give you some room for mounting caps (pop some holes in the extra chassis plate to let them poke through).

-PB

That's a nice creative idea although the idea of cutting holes that big seems a bit daunting.  These caps are 60mm wide!  I guess I could pay someone else to do it.

The world was made for those not cursed with self-awareness.

Rob

Offline Paul Birkeland

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Reply #20 on: March 25, 2014, 08:13:04 AM
Oddly enough, I've had very good luck using a hole saw to cut through sheet aluminum.  You'll want to clamp the piece to a piece of plywood so you have something to drill into, then use medium speed, low pressure, and some cutting fluid (WD-40 seems OK) to keep things lubricated, cool, and clean. 

If you get a piece of steel by accident, I wont' be able to help you much there ;)

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline corndog71

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Reply #21 on: May 11, 2014, 01:03:30 PM
It was a good weekend to make some changes so I thought I'd swap in my Russian caps for fun.  I used K40Y-9 PIO 0.01uF, and K42Y-2 PIO .1uF and .47uF caps.  I wrapped the metal-bodied .01 caps in teflon tape to be on the safe side. 

(https://forum.bottlehead.com/proxy.php?request=http%3A%2F%2Fi576.photobucket.com%2Falbums%2Fss207%2Fcorndog642%2FBottlehead%2520Reduction%2FIMG_8984_zps217ec883.jpg&hash=9bc8dc98a0a88a137991e41839b2315054c53e6c)

(https://forum.bottlehead.com/proxy.php?request=http%3A%2F%2Fi576.photobucket.com%2Falbums%2Fss207%2Fcorndog642%2FBottlehead%2520Reduction%2FIMG_8993_zps0c26e2ca.jpg&hash=79ccebea337418f891a750ba52912a9a6caba484)

Ok, I'm becoming a believer in these PIO caps.  They're still breaking in but right away they sound terrific.  Not really missing the V-caps I had in there either.

The world was made for those not cursed with self-awareness.

Rob

Offline Paul Birkeland

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Reply #22 on: May 13, 2014, 04:47:56 AM
Nice touch on the Teflon wrap!

If you can find them, 100+V rated polystyrene caps are nice for the EQ.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

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