ONE ... TWO ... THREE

Hi!

Last month I wrote about the new tubes being developed for the Intrepid series of electronics. Now the first three new types are finished.

Since these are completely new tube developments and do not have equivalents to existing types they received new tube designations. Naming them in order of their development ONE, TWO and THREE. 

The ONE was the first new tube, designed for use in the output stage of the Intrepid DAC or Intrepid Linestage.

Above a quad of ONE in operation in the DAC.

Fresh from the tube factory is the TWO with its main function as a driver in the Intrepid power amplifiers. Alternatively it can also be used in the DAC or Linestage. Depending on the desired gain. It is similar to the ONE but has a higher gain and a different filament voltage. The plate resistance is the same as that of the ONE. A longer plate was needed to achieve that.

And lastly also brand new, the THREE:

The THREE is an output triode which can deliver up to 10W in single ended operation. Like the TWO it has a longer plate than the ONE. Both the TWO and THREE are about 20mm higher compared to the ONE or the TM300B

Here we see the TWO and THREE in operation in a power amp:

Like all triodes made by Deutsche Elektronenröhren Manufaktur GmbH, these new tubes are directly heated with thoriated tungsten filaments.

These tubes are unique in the market with their cylindrical arrangement of electrodes.

They have a single filament string in the center of the tube which is surrounded by a cylindrical spiral as grid and everything is surrounded by a cylindrical anode (plate). The anode has some added side wings for heat dissipation.

This arrangement results in exceptional linearity and unsurpassed sound quality which make them the tubes of choice for the Intrepid series. These new tubes will be on demo at the Munich High End. Come to Hall 2, F06 to experience this new level of electron tube based sound reproduction!

Best regards

Thomas

The Intrepid Line Preamplifier

Hi!

In January I gave an introduction to the Intrepid product line with a first prototype of a line stage. Now the final version of the Intrepid Line Preamplifier is finished.

A line preamplifier with directly heated triodes and fully balanced and transformer coupled circuit for a truly capacitor less signal path.

As minimalistic as possible in design. Chassis milled from a solid block of metal, including the chassis for the separate power supply.

Like in all Intrepid products only silver wound transformers in the signal path including a silver transformer volume control.

The preamp can be built for different tubes, like 10Y, 801A, 26, UX201A and many others.

As standard it comes with custom developed tubes exclusively made for the Intrepid series.

All tubes carry a 5 year warranty.

The two chassis can be placed side by side or can be stacked.

Each input is transformer coupled via silver wound transformers.

Each input can be configured for different gains or all the same

Like all Intrepid products this line stage is built to order and can be customised.

This line stage will be on demo at the Munich High End, May 9-12, Hall 2, F06

Best regards

Thomas

The Intrepid Digital to Analog Converter

Hi!

The Intrepid DAC is finished.

It has the same digital inputs as the Heritage DAC and also the same configuration with 3 chassis: DA section, Analog Power Supply and Digital Power Supply.

In contrast to the Heritage DAC which has a single ended analog stage, the Intrepid DAC has a fully balanced discrete R2R DAC which feeds a balanced output stage with 2 directly heated triodes per channel. 

These are coupled to the output with a silver wound transformer without any capacitors in the signal path. With a total of 6 signal relevant transformers and inductors wound in silver.

All three chassis are milled from solid blocks of aluminum.

Like the Heritage DAC this one can be ordered with different kinds of output tubes.

As standard it is equipped with the 'ONE' a new tube development by Deutsche Elektronenröhren Manufaktur GmbH exclusively for my electronics.

The ONE comes with 5 years warranty.

The ONE uses a cylindrical arrangement of the electrodes for perfect symmetry in all directions from filament to plate. This results in very linear plate curves.

This DAC will be on demo at the upcoming Munich High End Hall2, F06

Best regards

Thomas

TM300B available to order

Hi!

We will produce a limited run of TM300B in May. Orders can be placed now. Shipment expected in June.

Email me with your shipping destination and information about the amplifier you want to use them in. We only do this one TM300B production run this year.

Best regards

Thomas

Gear in the making

Hi!

Work is in progress to complete the Intrepid product line up.

The Phono Preamplifier is in the making.

Working on the preamp chassis:

Partially finished.

The signal section of the line preamplifier is complete:

Power supply chassis still to be done.

The chassis for the Digital to Analog Converter arrived.

Like the Heritage DAC it consists of three chassis, signals section:

Analog power supply:

And digital power supply:

Like all Intrepid components the chassis are milled from solid aluminum blocks.

Stay tuned for updates as all this gear gets finished.

Best regards

Thomas