trinityamps.com

We are pleased to offer a new Custom built 18 Watt Transformer set for $150 USD + shipping.

We worked with Heyboer Transformers to put together an excellent sounding and looking transformer set. Blind sound tests with our sIII amp, have consistently proven that the new Output Transformer, based on the Original Radio Spares Deluxe design, has the Quintessential Marshall sound.

Our custom made Output Transformer set is built by Heyboer to the excact specifications of the original Radio Spares set used in the early Marshall 18 watt amps. This output transformer has convenient flying leads, paper bobbin, vintage grade steel, multiple secondary windings, additional interleaves and splits and the unused ultralinear tap on the primary side has been wound to 5K. It is priced at $150 USD plus $10 shipping in North America. This is an excellent price for one of the best sounding 18 watt transformers available. Others may sell this for up to $200 for a set or even more.



The Power transformer sports a beautiful Vintage Marshall Hammertone Gray bell, comes with 120/240 V and has an extra 5V tap.



This is a premium sounding set, made in the USA that you are guaranteed to be thrilled with.

Compare Pricing:

18 Watt Transformer Set - $150
18 Radio Spares Clone Output Transformer - $80
18 Watt Power Transformer - $100

Prices does not include $10 USD shipping within North America when purchased with a kit, $15 when purchased seperately.

email: stephen@trinityamps.com

Trinity Amps RS18 Output Transformer Specifications
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> Radio Spares Deluxe Design - Quintessential Marshall sound.
> Impedance taps: 8K AND 5K
> Secondaries: 4 ohm, 8 ohm, 16 ohm
> Lamination: M-27 steel
> Bobbin: Paper
> Interleaves: 5
> Primary layers: 18
> Secondary Layers: 5
> Current Capacity: 1.2 Amps maximum.
> Core: 1"x1" EI core
> Mylar between windings or interleaves. Nomax wrap over bobbin; Glassine paper between layers
> Flying leads

Trinity Amps Power Transformer Specifications
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> Primary: 120/240 V 60/50 Hz.
> Secondaries:
> > 290-0-290 120 mA
> > 5V 2A Rectifier tap
> > 6.3 V 1A Rectifier tap;
> > 6.3 VCT 3.25A Filament tap;
> Bell Cover Finish: Vintage Marshall Hammertone Gray
> Flying leads




Trinity Transformer Schematic Hook-Up


Chassis Mounting viewtopic.php?t=1245

Original Sonic Test Results we performed in 2006.

Test Results