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Tube Amplifiers HomeSchematicsOrange Schematics -» Tiny Terror :

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Tiny Terror Adobe Acrobat Schematic
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Orange - Tiny Terror  Thumbnail

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Michael – venezuela
December 16, 2016 - 16:06 on facebook.

Hi !can i modified my tiny terror orange and add a (send&return) Fx loop...
please help!!

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September 25, 2016 - 20:24

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Ed Denton – Alamogordo
July 19, 2016 - 15:09

The transformers you would use for an 18 watt amp will be fine. The Mercury PT is 290-0-290 and has a 6.3v heater winding. The amp has a ss rectifier so a 5v tap is not needed. The output transformer can be the 18watt OT. The choke tht Mercury sells for the amp has several settings for H but i bought the 9H choke and it is fine. I just finished a scratch build of the amp with the layout and turret board photo its at hoffmans amp forum under tiny terror scratch build.

Johng205 – ewutpwrr
June 07, 2014 - 09:11

Farmville farms even include free gift that is especially designed for the neighbors on daffdkeggkee

May 24, 2014 - 14:48

Please, someone can tell me about the output transformer ?
Wich one can i use or whats the specification ?

787B – Denver
May 13, 2013 - 19:57

Look on One is a power transformer and the other is an audio transformer. I'm still selecting mine. I wanted my audio transformer to pass as much sound as humans can hear. I found a Hammond audio transformer that goes between 30Hz-20kHz.

Chak – Hong Kong
February 17, 2012 - 15:06

Hi all,
The power transformer output should be 0 - 185V - 250V, plus 0 - 6.3v for the filaments.
I am a amp tech in Hong Kong, and I have been serving lots of Tiny Terror through out the years. If you guys are looking for replacement transformers that are made exact spec from the original, please feel free to send me an email to
I have a bunch of these, thinking just in case it might help you to complete your DIY tiny terror.
Enjoy. :-)


collin – texas
November 24, 2011 - 00:33

that bridge rectifier isn't correct. half the diodes aren't oriented correctly.

Reply to collin
collin – texas
November 24, 2011 - 00:43

misread. rectifier is great!

Reply to collin
Krentus – Wroclaw
December 10, 2011 - 05:00

You're right, it's Graetz who was wrong:)

Espen – Norway
November 01, 2011 - 15:35

I don't see the tone circuit in this schematic. Where is it at?

Reply to Espen
Espen – Norway
November 01, 2011 - 15:38

Sorry, I found it :) It was hidden at an unusual spot :)

October 27, 2011 - 17:24

there is a site selling a transformer you could use its got extra taps for valve heater and if you wire up a rotary switch you can get full power 1/2 power ans 1/10 power

sepulchre – Anoka, In
October 18, 2011 - 23:04

This doesn't show the 7 / 15 watt switch. Hmm.

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