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 Post subject: Tramp Production Specs
PostPosted: Wed Apr 21, 2010 7:19 am 
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Holy Ghost
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TRAMP SPECIFICATIONS

1. Controls: Power/Level, Volume, Bass, Treble, Master Volume, 1 input
2. VRM [DC power level control] incorporated into design. 'Brown out' the amp.
3. Amp to be able to go from Clean to Dirty.
4. Drive octal tubes with OT & bias resistor changes (6V6, 6L6, KT66, EL34,6CA7 and KT77)
5. Cathode Bias
6. Solid State rectifier
7. 2 tubes (3 max)
8. Beginner build
9. 1 additional Noval socket hole punched (power or pre-amp)
10. LED Power Indicator
11. Tweed/'tude push/pull switch on Gain control for clean/dirty preamp
12. Thin/Fat push/pull switch on Bass control
13. Chassis 14" X 5" X 2.5" .06" Aluminum with mirror finish panel / white lettering.
14. Designed for combo OR head.
15. Bias resistor switch to accommodate two power tubes
16. One Input jack; Two Output jacks
17. Impedance Selector (4,8,16 ohms)
18. Dual Impedance Heyboer custom Output Transformer - 5K AND 2.5K
19. Heyboer custom Power Transformer
20. Low noise Carbon Film resistors; Carbon Composition used where most beneficial.
21. Best quality parts: Alpha, Bourns, Mallory, Xicon, Cliff, Switchcraft, Belton, Heyboer

Power / Level control – Rotary ON-OFF switch with 1M control for VRM*.
Actions: Off – On (low level is standby. Turning control further effects the VRM control and the power level of the amp (power level control).
*VRM– components mounted on eyelet board. MOSFET mounted immediately beside board & leads soldered in directly.

Volume control – to adjust amount of volume and overdrive. The Tramp able to go from Clean to Dirty. The Tramp plays like a vintage Tweed Champ/Princeton when in Tweed mode. When played this way, the Master Volume would be on max, and then the Volume control becomes the amp's Volume control. Incorporates a push/pull Tweed / 'tude switch for Clean / Tweed // Dirty / Marshall range

Tone Controls:
Bass – Cut/Boost. Incorporates a push/pull Thin/ Fat switch for enhanced voicing

Treble - Cut/Boost

Master Volume control – overall volume level control.

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PostPosted: Wed Apr 21, 2010 8:52 am 
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Two kits on order:!:
The withdrawal symptoms are getting to me, must build :roll:

Listened to Bgroups tracks and that is a killer sound so I want a 6L6 version and my fav tube, a KT66 version. Really want to try a 5D3 mic input on this as well.

But the most important part is the kid wants to learn how to build amps, cabs and other stuff. Wehoo hes not going to be just a drummer forever :twisted:

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PostPosted: Fri Apr 23, 2010 12:39 pm 
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Stephen, just a small thing...
I would consider maybe a bicolor LED for the pilot when running it AC. This would give you a less "anemic" pilot and would protect the LED in the off cycles. I have a bunch of red/green push-in LED's with 6" pigtails, or discrete bicolor LED's if you need some. This should give you a yellow pilot, not my favorite color but they're free :D
Let me know...

Joe G

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PostPosted: Fri Apr 23, 2010 1:08 pm 
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Or how about if we use a high-intensity red LED with a series protection diode. Then you won't need to have an anaemic yellow either. :)

Taz13 wrote:
I want a 6L6 version and my fav tube, a KT66 version

We haven't worked out the bias requirements for a KT66, but it's definitely supported. You may just need to experiment a little with the bias resistor value on the cathode. In 'tude mode, you'll get a nice hint of JTM45. :D

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PostPosted: Fri Apr 23, 2010 2:09 pm 
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Quote:
Or how about if we use a high-intensity red LED with a series protection diode. Then you won't need to have an anaemic yellow either.


I generally try to protect AC driven LED's from potential reverse overs with either a diode or a second LED reverse biased in parallel with the LED. Bicolor LED's are a convenient solution, except for the color (IMO).

Just thinking...

Joe G

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PostPosted: Fri Apr 23, 2010 2:47 pm 
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Interesting. Thanks for looking it over. I hadnt really thought of it. No problems yet with it. A diode does not add much cost.

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PostPosted: Fri Apr 23, 2010 5:31 pm 
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For anyone interested, this article explains things way better than I can...
http://www.gizmology.net/LEDs.htm

Scroll to "Driving LED's With AC" at the bottom. Can you tell that I love LED's?? :lol:

Image

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PostPosted: Fri Apr 23, 2010 9:26 pm 
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Here's a view of the final revision of the Tramp Chassis (by Peerless Design).
Attachment:
TR-100223_TRAMP REV_B.jpg
TR-100223_TRAMP REV_B.jpg [ 28.22 KiB | Viewed 31488 times ]

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PostPosted: Sat Apr 24, 2010 10:57 pm 
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specs and chassis rendering updated

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PostPosted: Sat Apr 24, 2010 11:01 pm 
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joeyvelour wrote:
I generally try to protect AC driven LED's from potential reverse overs with either a diode or a second LED reverse biased in parallel with the LED.

Yes, I generally prefer to do that as well. However, I haven't yet come across, nor heard of any cases of LEDs being blown when connected across a 6.3VAC heater supply without the extra diode or LED. Still it never hurts to play safe. :)

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PostPosted: Sun Jul 24, 2011 7:49 am 
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Hi
I'm interested in what a Tramp sounds like. So far I have not been able to find and any sound bites here or at youtube.
Can someone point the "new guy" in the right direction?
Thanks,
Marc


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PostPosted: Sun Jul 24, 2011 9:12 am 
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You can find a whole lot of them here: viewtopic.php?f=16&t=2046

Although there are some other threads with some clips as well.

Just ordered my kit and unfinished cab based on the sounds clips posted above and all the excellent feedback from current owners...exactly the kind of amp I'm looking for.


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PostPosted: Thu Sep 01, 2011 12:08 pm 
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How long is the wait for a Tramp kit? Will it ship right away?


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PostPosted: Tue Nov 15, 2011 9:45 am 
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PharmRock wrote:
You can find a whole lot of them here: viewtopic.php?f=16&t=2046

Unfortunately, those no longer work :( However, there is a nice set of clips played by pro guitarist Lawrence Bethune, in the Clippage forum - viewtopic.php?f=10&t=2307

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PostPosted: Wed Nov 16, 2011 9:25 pm 
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I must have deleted these with the last hacker, hacked. I'll try to locate them.

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PostPosted: Fri Nov 02, 2012 3:46 pm 
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I am considering ordering a Tramp combo kit (will be my first amp build) and would like to know... is there is a Tramp combo cabinet which will accommodate a 12" speaker?


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PostPosted: Fri Nov 02, 2012 3:48 pm 
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DHart wrote:
I am considering ordering a Tramp combo kit (will be my first amp build) and would like to know... is there is a Tramp combo cabinet which will accommodate a 12" speaker?

Yes you can fit a 12" in the standard Tramp combo cab. When ordering ask for a baffle sized for a 12" speaker.

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PostPosted: Fri Nov 02, 2012 7:23 pm 
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kurtlives wrote:
DHart wrote:
I am considering ordering a Tramp combo kit (will be my first amp build) and would like to know... is there is a Tramp combo cabinet which will accommodate a 12" speaker?

Yes you can fit a 12" in the standard Tramp combo cab. When ordering ask for a baffle sized for a 12" speaker.


Kurt... Thanks for the info.

Any idea if the kits are shipping immediately, or is there a wait time?


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