trinityamps.com

Trinity Amps Guitar Amp Forum
It is currently Thu Mar 28, 2024 7:24 pm

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 28 posts ]  Go to page 1, 2  Next
Author Message
 Post subject: Triwatt build from Texas
PostPosted: Wed Dec 18, 2019 1:18 pm 
Offline
Friend
Friend

Joined: Wed Dec 18, 2019 12:34 pm
Posts: 40
Location: Brazoria County Texas
Hello all, let me introduce myself. my name is Mark and I live in Texas. I have been an aircraft mechanic for 22 years and have worked on single engine flight school planes, corporate jets 737s, MD 80s and Bell Helicopters. My sheet metal experience has given me the opportunity to work on all these aircraft. Currently working on Bell 206 B III, 206 L-4, and Bell 230. we operate in the Gulf of Mexico. This is my first amp build and quite looking forward to enjoying every minute of it. I'm sure Ill have questions but for now just wanted to get a thread started for my build.

Cheers


Top
 Profile  
 
PostPosted: Thu Dec 19, 2019 12:00 pm 
Offline
Friend
Friend

Joined: Wed Dec 18, 2019 12:34 pm
Posts: 40
Location: Brazoria County Texas
So I'm gonna use KT66 in my build and was wanting too know on the resistor value to use in place of the 620K. manual says 1M but it also says may need to adjust value to get to the correct bias adjustment.
which value should I have to get it into the adjustment range.
Thanks Mark


Top
 Profile  
 
PostPosted: Fri Dec 27, 2019 9:25 am 
Offline
Holy Ghost
Holy Ghost
User avatar

Joined: Sun Mar 13, 2005 4:10 pm
Posts: 7519
Location: Canada
You should be OK with whats provided in the kit. It is designed for 6V6 and Kt66

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


Top
 Profile  
 
PostPosted: Wed Jan 08, 2020 1:24 pm 
Offline
Friend
Friend

Joined: Wed Dec 18, 2019 12:34 pm
Posts: 40
Location: Brazoria County Texas
Here is my build so far


Attachments:
692876AD-E086-4A81-AA7B-946A85BD387E.jpeg
692876AD-E086-4A81-AA7B-946A85BD387E.jpeg [ 3.48 MiB | Viewed 13469 times ]
Top
 Profile  
 
PostPosted: Wed Jan 08, 2020 3:34 pm 
Offline
Holy Ghost
Holy Ghost
User avatar

Joined: Sun Mar 13, 2005 4:10 pm
Posts: 7519
Location: Canada
Looks very nice.

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


Top
 Profile  
 
PostPosted: Sat Jan 11, 2020 12:05 pm 
Offline
Friend
Friend

Joined: Wed Dec 18, 2019 12:34 pm
Posts: 40
Location: Brazoria County Texas
I’m not exactly seeing how the 100K resistor is connected to the overdrive push/pull switch. I see it’s connected to terminal 2 on the pot and the upper left terminal of the switch. Does it also get soldered to the upper right terminal of the switch? And how about the lower right terminal of the switch?

Thanks
Mark


Top
 Profile  
 
PostPosted: Sat Jan 11, 2020 3:40 pm 
Offline
Expert
Expert

Joined: Sat Dec 04, 2010 3:42 pm
Posts: 519
Location: Qualicum Beach, BC
Looking at the schematic, the overdrive push/pull switch is a double-pole double-throw switch and nothing is connected to one of the poles. So the three terminals on the right side are left unconnected. Just connect one end of the 100k resistor to pin 2 on the overdrive pot and the other end to the upper left terminal of the switch.

The layout drawing seems to indicate that the resistor also connects to the upper right terminal of the switch. I don't see any reason to do that, but it would be OK as long as nothing connects to the middle right terminal.


Top
 Profile  
 
PostPosted: Sat Jan 11, 2020 5:07 pm 
Offline
Novice
Novice

Joined: Wed May 22, 2019 4:26 am
Posts: 61
Location: The Netherlands
mitch m wrote:
The layout drawing seems to indicate that the resistor also connects to the upper right terminal of the switch. I don't see any reason to do that, but it would be OK as long as nothing connects to the middle right terminal.


It does seem to indicate that but nothing is supposed to be connected to it (the right side).
Check my picture below on the right wiring of the resistor. I used a little bit of shrink tube to prevent the lead from accidentally touching any lugs of the potmeter.


Attachments:
20200111_220350.jpg
20200111_220350.jpg [ 3.67 MiB | Viewed 13391 times ]
Top
 Profile  
 
PostPosted: Sat Jan 11, 2020 5:14 pm 
Offline
Friend
Friend

Joined: Wed Dec 18, 2019 12:34 pm
Posts: 40
Location: Brazoria County Texas
Thanks guys, here is a pic of the of V1 and the other nputs


Attachments:
AE7CFB21-3E8E-4872-A8E5-CF69C02531E8.jpeg
AE7CFB21-3E8E-4872-A8E5-CF69C02531E8.jpeg [ 3.29 MiB | Viewed 13391 times ]
F78B020E-327B-4780-9AD6-9D23CBB6C8B0.jpeg
F78B020E-327B-4780-9AD6-9D23CBB6C8B0.jpeg [ 3.29 MiB | Viewed 13391 times ]
Top
 Profile  
 
PostPosted: Sat Jan 11, 2020 5:16 pm 
Offline
Friend
Friend

Joined: Wed Dec 18, 2019 12:34 pm
Posts: 40
Location: Brazoria County Texas
Here is another shot


Attachments:
5D700C57-A3AC-4007-A70D-9F95D8115A5E.jpeg
5D700C57-A3AC-4007-A70D-9F95D8115A5E.jpeg [ 2.87 MiB | Viewed 13391 times ]
Top
 Profile  
 
PostPosted: Sat Jan 11, 2020 5:32 pm 
Offline
Novice
Novice

Joined: Wed May 22, 2019 4:26 am
Posts: 61
Location: The Netherlands
Looking good and neat!
I'm sure you will get there. :-)


Top
 Profile  
 
PostPosted: Sun Jan 12, 2020 5:36 pm 
Offline
Experienced
Experienced

Joined: Wed Sep 12, 2018 5:17 pm
Posts: 374
Location: Shawnee, OK
Agree with Gertjan, that is really clean looking build :!: I do have a question, though, how do you get the wires so straight? I saw where someone drilled a hole through a board just slightly over the wire(with insulation) diameter and pulled it through the hole while spinning it w/ a drill to straighten the wire, but haven't tried it yet.

_________________
"The only problem with being retired is you never get a day off"


Top
 Profile  
 
PostPosted: Sun Jan 12, 2020 6:35 pm 
Offline
Novice
Novice

Joined: Wed May 22, 2019 4:26 am
Posts: 61
Location: The Netherlands
It takes patience. I am a perfectionist hence the straight wiring.
I used a pair of pliers to bend the wires and checked their fit before I soldered them. Takes some time but it makes for a neat build.


Top
 Profile  
 
PostPosted: Sun Jan 12, 2020 11:29 pm 
Offline
Experienced
Experienced

Joined: Wed Sep 12, 2018 5:17 pm
Posts: 374
Location: Shawnee, OK
I'm not trying be mean or dismiss your build, Gertjan2411, but I was hoping Rotorcraft could provide information on his build. :oops: Hope you don't take it wrong. :(

_________________
"The only problem with being retired is you never get a day off"


Top
 Profile  
 
PostPosted: Mon Jan 13, 2020 1:42 pm 
Offline
Friend
Friend

Joined: Wed Dec 18, 2019 12:34 pm
Posts: 40
Location: Brazoria County Texas
Hankules wrote:
I'm not trying be mean or dismiss your build, Gertjan2411, but I was hoping Rotorcraft could provide information on his build. :oops: Hope you don't take it wrong. :(


Hello Hankules, I rolled the wire between two pieces of wood, back and forth like rubbing your hands together trying to get them warm, except using wood. Works great with the cap leads also just have to do each side separately.
Should finish up tonight and have it fired up. Probably have 80 hours in the build. Been working on it a lot since Christmas.


Top
 Profile  
 
PostPosted: Mon Jan 13, 2020 1:46 pm 
Offline
Friend
Friend

Joined: Wed Dec 18, 2019 12:34 pm
Posts: 40
Location: Brazoria County Texas
Here it is almost done


Attachments:
397B000A-86FF-4D5B-835F-C3EAC3BC33B6.jpeg
397B000A-86FF-4D5B-835F-C3EAC3BC33B6.jpeg [ 3.26 MiB | Viewed 13358 times ]
Top
 Profile  
 
PostPosted: Tue Jan 14, 2020 1:47 am 
Offline
Friend
Friend

Joined: Wed Dec 18, 2019 12:34 pm
Posts: 40
Location: Brazoria County Texas
Well I fired it up, no smoke no burned fuses all voltages within specs. Plugged in the Les Paul and she sounds amazing It’s almost midnight so I really can’t put her to the high volume test I’ll report back. Here are a few pics. Thanks for the help.
Mark


Attachments:
40DA7A6F-DD41-4453-A09B-755BAA1E6AF0.jpeg
40DA7A6F-DD41-4453-A09B-755BAA1E6AF0.jpeg [ 3.09 MiB | Viewed 13348 times ]
2102E8B1-C180-4640-81A0-2ACC0FC87FDF.jpeg
2102E8B1-C180-4640-81A0-2ACC0FC87FDF.jpeg [ 3.55 MiB | Viewed 13348 times ]
Top
 Profile  
 
PostPosted: Tue Jan 14, 2020 2:08 am 
Offline
Friend
Friend

Joined: Mon Nov 18, 2019 1:36 am
Posts: 38
Location: Northwestern Ontario
Very nice work. :thumbsup:


Scott


Top
 Profile  
 
PostPosted: Tue Jan 14, 2020 2:46 am 
Offline
Expert
Expert

Joined: Sat Dec 04, 2010 3:42 pm
Posts: 519
Location: Qualicum Beach, BC
Not surprised that it worked the first time! Very nice workmanship, Mark. Lots of attention to minor details. It should sound great when you get a chance to crank it up.


Last edited by mitch m on Tue Jan 14, 2020 3:31 pm, edited 1 time in total.

Top
 Profile  
 
PostPosted: Tue Jan 14, 2020 11:04 am 
Offline
Friend
Friend

Joined: Wed Dec 18, 2019 12:34 pm
Posts: 40
Location: Brazoria County Texas
Thank you for all the kind words. I really like attention to detail. Nothing is a rush, take your time, pay attention to detail and it will pay off.
Thanks Mark
P.S. gonna hear all its full glory tonight. Can’t wait!!!


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 28 posts ]  Go to page 1, 2  Next

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 10 guests


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