Which caps to replace? Log Out | Topics | Search
Moderators | Edit Profile

Music Man Amps Discussion Forum » Capacitor Replacement » Which caps to replace? « Previous Next »

Author Message
Top of pagePrevious messageNext messageBottom of page Link to this message

Cameron Kinsey (gibson175)
Username: gibson175

Registered: 09-2007
Posted on Thursday, September 13, 2007 - 01:05 am:   

Do i just replace all the brown mallory caps (11 in all) , or do I replace the silver 150mf ones (5 of them) as well?
I have a '75 210 sixty-five
Top of pagePrevious messageNext messageBottom of page Link to this message

Mike Kaus (mm210)
Username: mm210

Registered: 05-2006
Posted on Thursday, September 13, 2007 - 06:34 am:   

OOPS-didn't see this one first. DON'T replace the brown caps. Only do the long silver ones. Remember, the most important ones are the bias a filter caps. THe filter caps are under the "doghouse" cover on the other side of the chassis.
Top of pagePrevious messageNext messageBottom of page Link to this message

Cameron Kinsey (gibson175)
Username: gibson175

Registered: 09-2007
Posted on Saturday, September 15, 2007 - 04:15 am:   

Ah - they are the ones that can kill me right? Can you give me a simple and safe method of draining them before i do anything silly?
Top of pagePrevious messageNext messageBottom of page Link to this message

Mike Kaus (mm210)
Username: mm210

Registered: 05-2006
Posted on Saturday, September 15, 2007 - 03:48 pm:   

Make a 10k-1 watt resistor with two wires on the ends and a gator clip on each end. Clip the one end to the chassis and clip the other end to the "+" side of the filter cap. Wait 2 minutes and check with a voltmeter to make sure it's safe. Leave it hooked up while working on it as caps sometimes have a memory and kind of re-charge a little. Just remember to UN-hook it before you fire the mutha up. Mike.
Top of pagePrevious messageNext messageBottom of page Link to this message

Cameron Kinsey (gibson175)
Username: gibson175

Registered: 09-2007
Posted on Saturday, September 15, 2007 - 09:39 pm:   

will do - i really appreciate all your advice man!
I'm looking forward to hearing the amp when its all done (speakers, tubes, caps and bias)!
Top of pagePrevious messageNext messageBottom of page Link to this message

Cameron Kinsey (gibson175)
Username: gibson175

Registered: 09-2007
Posted on Saturday, September 15, 2007 - 10:14 pm:   

It actually doesn't sound too bad with just a rebias, the old tubes, the old caps and 15inch/tweeter p.a. bin. I'm not selling my boogie just yet tho...
Top of pagePrevious messageNext messageBottom of page Link to this message

Cameron Kinsey (gibson175)
Username: gibson175

Registered: 09-2007
Posted on Thursday, December 11, 2008 - 05:19 pm:   

Filter caps are in. Heaps more volume. I still need the150uf caps for the topside, but postage to Australia is a killer!
Top of pagePrevious messageNext messageBottom of page Link to this message

Cameron Kinsey (gibson175)
Username: gibson175

Registered: 09-2007
Posted on Monday, January 26, 2009 - 04:46 am:   

Okay, finally done the lot -caps, tubes etc. One more problem - i have jus trealized thatthe speakers which i spent big money on (reconing the orginals) suck. I want new ones. I ran it thru a jensen c12 and the amp itself is awesome.
PS - big thanks to Mike Kaus for all his help!
Top of pagePrevious messageNext messageBottom of page Link to this message

Bill Traylor (bozzy369)
Username: bozzy369

Registered: 02-2008
Posted on Tuesday, January 26, 2010 - 09:15 pm:   

one year later

Add Your Message Here
Posting is currently disabled in this topic. Contact your discussion moderator for more information.

Topics | Last Day | Last Week | Tree View | Search | Help/Instructions | Program Credits Administration