trinityamps.com

Trinity Amps Guitar Amp Forum
It is currently Mon Apr 06, 2020 5:11 am

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 8 posts ] 
Author Message
 Post subject: VRM Installation
PostPosted: Thu Jun 23, 2016 7:39 am 
Offline
Friend
Friend

Joined: Sun Apr 24, 2016 8:41 am
Posts: 27
Ive recently started building a TC15 and so far im very happy with how its coming along. Voltage test was good. I am almost done and all that is left is the VRM. Does anyone have a diagram or pictures of the actual hook up? Im not sure where the B+ is coming in from and the output is going to. Sorry but im new here and this is my first build.

Thanks in advance

Frank


Top
 Profile  
 
 Post subject: Re: VRM Installation
PostPosted: Thu Jun 23, 2016 12:08 pm 
Offline
Experienced
Experienced

Joined: Sat Dec 04, 2010 3:42 pm
Posts: 443
Location: Qualicum Beach, BC
Hi Frank, welcome to the forum.

I have never installed one, but there's information on the VRM on page 2 in the Resources section here. It says to install it so the input goes to the Standby switch and the first filter cap and the output goes to the main B+.

In a TC-15 that would mean connecting the VRM input to the left terminal on the can capacitor, C13. The Standby swith connects there too.

Then the red center tap wire for the output transformer and R29, the 1K5 5 watt resistor, connect to the VRM output instead of C13.

I would make sure the amp works normally before installing the VRM. Sometimes people have had problems.


Top
 Profile  
 
 Post subject: Re: VRM Installation
PostPosted: Thu Jun 23, 2016 6:49 pm 
Offline
Friend
Friend

Joined: Sun Apr 24, 2016 8:41 am
Posts: 27
Thank You!! I will look at it tonight ant try to get it done for the weekend. I am so looking forward to hearing this amp in person. Ive heard nothing but good things. Im not even done yet and already thinking about building the triwatt next. I think this is going to become an expensive hobby.


Thanks again!!!


Top
 Profile  
 
 Post subject: Re: VRM Installation
PostPosted: Thu Jun 23, 2016 9:47 pm 
Offline
Experienced
Experienced

Joined: Sat Dec 04, 2010 3:42 pm
Posts: 443
Location: Qualicum Beach, BC
The TC-15 is a great sounding amp. I'm sure you will like it when you get it finished. And yes, tube amp building is addictive! I started with a TC-15 and I have about nine amps now.

A Triwatt would be good for your next build. I would build one except I have already built a couple of Hiwatt inspired amps, a 30 watt and a 50 watt. Trinity's version is pretty authentic when it comes to tone and circuitry.

Good luck completing your TC-15.


Top
 Profile  
 
 Post subject: Re: VRM Installation
PostPosted: Fri Jun 24, 2016 12:56 am 
Offline
Friend
Friend

Joined: Sun Apr 24, 2016 8:41 am
Posts: 27
I heard a demo by Tim Occleshaw and I love that Hiwatt tone.

Ok, I started a new thread because I finished the build and everything seems well but i am not getting any sound on any inputs. Not really sure where to start from here. Input jacks maybe?


Top
 Profile  
 
 Post subject: Re: VRM Installation
PostPosted: Fri Jun 24, 2016 9:11 am 
Offline
Holy Ghost
Holy Ghost
User avatar

Joined: Sun Mar 13, 2005 4:10 pm
Posts: 7418
Location: Brighton, Canada
If voltages are all good, then you need to test the input leads to make sure there is continuity from the tip of the cable, when plugged in, to the grid resistor. i.e. make sure the inputs are not accidentally grounded.
Go from there.

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


Top
 Profile  
 
 Post subject: Re: VRM Installation
PostPosted: Tue Oct 24, 2017 4:55 pm 
Offline
Friend
Friend

Joined: Mon Oct 23, 2017 6:40 pm
Posts: 10
Sorry but im new here and this is my first build.


ทางบ้าน


Top
 Profile  
 
 Post subject: Re: VRM Installation
PostPosted: Sat Aug 11, 2018 9:00 am 
Offline
Experienced
Experienced

Joined: Fri Jul 29, 2005 11:35 pm
Posts: 418
Location: S of Buffalo, NY
SPAM!!


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 8 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:  
Powered by phpBB® Forum Software © phpBB Group