trinityamps.com

Trinity Amps Guitar Amp Forum
It is currently Sat Aug 08, 2020 8:32 am

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 7 posts ] 
Author Message
PostPosted: Fri Nov 13, 2015 12:50 pm 
Offline

Joined: Sat Oct 24, 2015 10:43 am
Posts: 6
Voltages on my rectifier pins are as follows: Pin2-5volts, Pin8-0volts, Pin 4-358volts Pin6-358volts.Everything is wired at the right points ( I checked it 4 times). Voltages on heater wires are half of what they should be. Do you think this may be an issue with the power transformer? Any help would be great! Thanks Paul


Top
 Profile  
 
PostPosted: Fri Nov 13, 2015 7:02 pm 
Offline
Holy Ghost
Holy Ghost
User avatar

Joined: Sun Mar 13, 2005 4:10 pm
Posts: 7430
Location: Brighton, Canada
Those rectifier voltages look reasonable. If you disconnect The two green leads from the PT, do you have only 3.15 volts across them? If you do, then check bewteen them and the green-yellow centre tap for the heater wires and see if maybe the leads got mislabelled?

_________________
Stephen
Web: www.trinityamps.com. Facebook: facebook.com/trinityamps. Twitter: @trinityamps


Top
 Profile  
 
PostPosted: Sat Nov 14, 2015 11:15 am 
Offline

Joined: Sat Oct 24, 2015 10:43 am
Posts: 6
Thank's Steve I will check this out over the weekend and post the results.


Top
 Profile  
 
PostPosted: Sat Nov 14, 2015 6:14 pm 
Offline

Joined: Sat Oct 24, 2015 10:43 am
Posts: 6
I disconnected the 2 green leads from the pilot light when I check them across I get 6.10 volts, the strange thing is once I solder them back on the pins and check pins 2 and 8 on the rectifier socket, I get 9 volts on pin 2 and 6 volts on pin 8, I am lost as to why that is possible, maybe bad internal wiring on the power transformer? Please help me. Thanks |Paul Tattonguitars


Top
 Profile  
 
PostPosted: Sun Nov 15, 2015 6:11 pm 
Offline
Holy Ghost
Holy Ghost
User avatar

Joined: Sun Mar 13, 2005 4:10 pm
Posts: 7430
Location: Brighton, Canada
I very much doubt the PT is at fault. You will need to divide an conquer. i.e. disconnect things until you find the point where the error is. The voltage across the greens should be 6.3VAC and 5 VAC accross the rectifier heater pins 2/8 but NOT between pins 2/8 to ground. They are independent windings.

_________________
Stephen
Web: www.trinityamps.com. Facebook: facebook.com/trinityamps. Twitter: @trinityamps


Top
 Profile  
 
PostPosted: Fri Nov 20, 2015 7:14 am 
Offline

Joined: Sat Oct 24, 2015 10:43 am
Posts: 6
After a great deal of trouble shooting, and help from a friend we found that pin 4 on V2 had been overheated and burnt, install a new socket rewired and the amp now works great! Very pleased! Thanks for all the help! Paul


Top
 Profile  
 
PostPosted: Sat Nov 28, 2015 9:46 am 
Offline
Holy Ghost
Holy Ghost
User avatar

Joined: Sun Mar 13, 2005 4:10 pm
Posts: 7430
Location: Brighton, Canada
tattonguitars wrote:
After a great deal of trouble shooting, and help from a friend we found that pin 4 on V2 had been overheated and burnt, install a new socket rewired and the amp now works great! Very pleased! Thanks for all the help! Paul


Great news. Now you really know your amp, inside and out!!

_________________
Stephen
Web: www.trinityamps.com. Facebook: facebook.com/trinityamps. Twitter: @trinityamps


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 7 posts ] 

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Group