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 Post subject: VRM Installation
PostPosted: Thu Jun 23, 2016 7:39 am 
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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


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 Post subject: Re: VRM Installation
PostPosted: Thu Jun 23, 2016 12:08 pm 
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Joined: Sat Dec 04, 2010 3:42 pm
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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.


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 Post subject: Re: VRM Installation
PostPosted: Thu Jun 23, 2016 6:49 pm 
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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!!!


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 Post subject: Re: VRM Installation
PostPosted: Thu Jun 23, 2016 9:47 pm 
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Joined: Sat Dec 04, 2010 3:42 pm
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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.


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 Post subject: Re: VRM Installation
PostPosted: Fri Jun 24, 2016 12:56 am 
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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?


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 Post subject: Re: VRM Installation
PostPosted: Fri Jun 24, 2016 9:11 am 
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Holy Ghost
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Joined: Sun Mar 13, 2005 4:10 pm
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Location: 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.

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


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 Post subject: Re: VRM Installation
PostPosted: Tue Oct 24, 2017 4:55 pm 
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Sorry but im new here and this is my first build.


ทางบ้าน


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 Post subject: Re: VRM Installation
PostPosted: Sat Aug 11, 2018 9:00 am 
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Joined: Fri Jul 29, 2005 11:35 pm
Posts: 424
Location: S of Buffalo, NY
SPAM!!


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