Electrolytic caps & transformers

Electrolytic caps & transformers

Postby gpilcher2001 » Thu Jul 12, 2012 7:27 pm

Hi all, i'm currently back in the process of doing more upgrades to my forever on going process of upgrading my amp to Jerry spec's. The Waldo site says to use the biggest filter caps you fit in the cap can on a twin reverb. I was curious what you guys are using brand and values. While I'm a tinkerer/hobbiest of tube amps I am no engineer.

I am also getting ready to do a transformer upgrade am curious is anyone has tried the Mercury Magnetics PT, OT, & Choke? Or feedback on any other transformers would be good. Thanks Greg...
good to know you got shoes to wear when you find the floor.....
User avatar
gpilcher2001
Terrapin
Terrapin
 
Posts: 159
Joined: Wed Sep 08, 2010 8:54 pm
Location: colorado

Re: Electrolytic caps & transformers

Postby JonnyBoy » Thu Jul 12, 2012 8:02 pm

Ive been told upping them to at least 500v-600 on the filter caps is plenty and the new caps are a lot smaller these days I'm sure so the size thing can be overcome. Mine are the cheaper ones like fender reissues come with but it sounds awesome anyway since I changed them.
http://otislotus.net/ Finally finished our new site...
User avatar
JonnyBoy
Senior Member
 
Posts: 2134
Joined: Mon Mar 01, 2010 8:35 am
Location: the south swamps

Re: Electrolytic caps & transformers

Postby gpilcher2001 » Tue Jul 17, 2012 5:09 pm

Anyone? Anyone? I understand the transformers but all you guys with the jerry mods to a twin? I found some JJ caps that are 500v 500uf that might fit. Do those values seem sufficient? Greg...
good to know you got shoes to wear when you find the floor.....
User avatar
gpilcher2001
Terrapin
Terrapin
 
Posts: 159
Joined: Wed Sep 08, 2010 8:54 pm
Location: colorado

Re: Electrolytic caps & transformers

Postby Smolder » Tue Jul 17, 2012 5:27 pm

there is a good chance I will get corrected here for not following the recipe, but I've never been able to hear a difference in wither brand or voltage tolerance of filter caps. As for transformers... the PT and the choke substitution would have minimal effect on tone. The OT can make a difference. Mercury puts huge eff...

...huge effort into researching and reconstructing old transformers. Companies like Midwest magnetic Components (available via triode electronics) were doing it from the beginning. I think their lassie line for fender amps is damn good... and at very reasonable cost.

edit... sorry for the incomplete thought... on the road with poor connectivity.
Last edited by Smolder on Sat Jul 21, 2012 9:54 pm, edited 1 time in total.
Smolder
Senior Member
 
Posts: 641
Joined: Sun Jan 01, 2012 11:42 am
Location: 8152 feet... in the rockies.

Re: Electrolytic caps & transformers

Postby JonnyBoy » Thu Jul 19, 2012 4:46 pm

500 is perfect. No issues at all using those. If its an amp that hasn't been changed in many years it will sound a lot better.
http://otislotus.net/ Finally finished our new site...
User avatar
JonnyBoy
Senior Member
 
Posts: 2134
Joined: Mon Mar 01, 2010 8:35 am
Location: the south swamps

Re: Electrolytic caps & transformers

Postby zambiland » Thu Jul 19, 2012 10:46 pm

Smolder wrote:there is a good chance I will get corrected here for not following the recipe, but I've never been able to hear a difference in wither brand or voltage tolerance of filter caps. As for transformers... the PT and the choke substitution would have minimal effect on tone. The OT can make a difference. Mercury puts huge eff


Ah, don't leave us hanging! I've got a pair of MM OT trannies waiting to go into a '67 Showman and a '67 Bandmaster. Just need a few spare hours to do the job. The Showman currently has a Hammond 1650T, which works pretty well, but I'm betting the MM will sound bigger and cleaner. The Bandmaster is an easy upgrade. The original OT is a piece of crap.
zambiland
Senior Member
 
Posts: 558
Joined: Fri Nov 24, 2006 12:13 pm
Location: Boulder CO

Re: Electrolytic caps & transformers

Postby Smolder » Sat Jul 21, 2012 9:56 pm

zambiland wrote:
Smolder wrote:there is a good chance I will get corrected here for not following the recipe, but I've never been able to hear a difference in wither brand or voltage tolerance of filter caps. As for transformers... the PT and the choke substitution would have minimal effect on tone. The OT can make a difference. Mercury puts huge eff


Ah, don't leave us hanging! I've got a pair of MM OT trannies waiting to go into a '67 Showman and a '67 Bandmaster. Just need a few spare hours to do the job. The Showman currently has a Hammond 1650T, which works pretty well, but I'm betting the MM will sound bigger and cleaner. The Bandmaster is an easy upgrade. The original OT is a piece of crap.


sorry - completed the post. The allen amps transformer for bassman is a fantastic upgrade for either the bandmaster, pro reverb, or the vibrolux reverb.
Smolder
Senior Member
 
Posts: 641
Joined: Sun Jan 01, 2012 11:42 am
Location: 8152 feet... in the rockies.

cheap caps online

Postby paulpike01 » Fri Jul 27, 2012 11:30 am

Trainers, is an online shopping store from where you can buy various kinds of fashionable and well designed new era cheap casual button up shirts for men as well as cheap button up shirts for men. To buy cheap caps you should visit http://www.trnrs.com/. Also provide cheap caps online service.
paulpike01
welcome
welcome
 
Posts: 1
Joined: Fri Jul 27, 2012 11:25 am


Return to Jerry Tone

Who is online

Users browsing this forum: tnt1234 and 3 guests