Fender Rebuild - diyAudio
Go Back   Home > Forums > Live Sound > Instruments and Amps

Instruments and Amps Everything that makes music, Especially including instrument amps.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 11th May 2008, 06:30 AM   #1
lpd is offline lpd  Canada
diyAudio Member
 
Join Date: Nov 2003
Location: BC
Default Fender Rebuild

I recently acquired a Fender Vibrasonic 5G13 circuit. I ramped up the voltage to test the power transformer/output transformer (I purchased it as is with missing tubes) and it gives output. I am going to rebuild the power supply and recap as I want to play it, not collect. Any suggestion for the 20mf @ 600VDC axials. Very expensive caps. Any suggestions for the coupling caps ie types to retain close to original tone. I realize the caps today are different than vintage caps but the caps in this amp are 48 years old and have probably drifted seriously.

Thanks
  Reply With Quote
Old 18th May 2008, 02:04 PM   #2
diyAudio Member
 
Join Date: May 2008
If you find the 20uF 600V caps too expensive, you can use 2 x 20uF 300V caps in series, normally much cheaper this way.
Michael
  Reply With Quote
Old 18th May 2008, 09:26 PM   #3
diyAudio Member
 
Geek's Avatar
 
Join Date: Sep 2004
Ah yes sorry, I got sidetracked on this topic

2 x 47uF @ 450V in series will give you a nice 23.5uF @ 900V. Use a resistor across each (220K @ 2W is good) capacitor to equalize things.

I'll dig through my emails when I get home tonight.

Cheers!
  Reply With Quote
Old 14th June 2008, 06:44 PM   #4
Enzo is offline Enzo  United States
diyAudio Member
 
Join Date: Sep 2004
Location: Lansing, Michigan
What is the B+ voltage in that amp when tubes are installed? Is it under 500v? If so, then yuo don't need 600v caps.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Fender help Docc25 Instruments and Amps 3 2nd January 2013 10:18 PM
Fender 6L6 Amp... HELP!!! mjarve Tubes / Valves 18 28th November 2010 06:06 PM
Fender Bassman Ten Benny Bennett Instruments and Amps 2 2nd April 2009 01:01 PM
Fender Champion 110 jam9 Instruments and Amps 5 31st January 2009 03:41 AM
Fender Pro Amp atmars Tubes / Valves 1 23rd November 2008 01:30 AM


New To Site? Need Help?

All times are GMT. The time now is 03:06 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2