The TA-100 Overdrive is a musical instrument effects unit that produces the classical sound of an overdriven tube amplifier and delivers up to 40dB of gain. Gain and output level are independently adjustable, a Tone control allows the attenuation of the high frequency content of the signal.

It is a unique design that is completely based on germanium semiconductors. Although primarily designed for the use with an electrical guitar in conjunction with a tube amplifier, it may also be used with an electrical bass or other instruments.

Tortenmann / Telenordia

Demo by  Living Room GD

Demo by Jim Jones

Review by The Gear Page

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TA-100 Overdrive

The TA-24 Booster is a versatile electrical instrument preamplifier that allows up to 30dB of full-range level boost, with the additional possibility to switch in a high-pass filter with various selectable corner frequencies. The Gain ist continously adjustable, a Tone control offers an additional means of sound shaping.

Although primarily designed for the use with an electrical guitar, it may also be used with other instruments. Being very similar in circuitry to the TA-23 Booster, it is based on discrete germanium transistor circuitry and will therefore always add a flavour to the sound, especially at high gain settings.

Demo by Monteforte Valerio

TA-24 Treble Booster

Demo by Aram Bajakian

TA-200 Grand Fuzz

The TK-23 Kompressor is a powerful musical instrument effects unit that automatically reduces audio peaks and/or raises the level of soft passages. An electro-optical attenuation system that provides up to about 25dB of gain reduction provides a fast, but natural sounding compression effect. A special feature of the TK-23 is the possibilty to alter its response to strong transients by reducing its sensitivity to peaks without changing the attack time. This makes the TK-23 especially useful for highly dynamic, attack-rich instruments like electric guitars or basses.

As the internal circuitry is, like all Telenordia products, derived from the germanium transistor-based TA-23 Booster, the TK-23 shall not be considered a linear, but rather a unique device with a prominent sound characteristic.

Demo by  Fluffy Momo

Demo by  Monteforte Valerio

Review by Bassic

Review by OVNI LABS

TK-23 Kompressor

The TF-1 Filter Booster is a versatile electrical instrument preamplifier that allows for frequency selective level boost in various filter shapes. Six frequency center points covering the whole range of an electric guitar, bass or similar instruments are available for a boost of up to 18dB, with the amount of boost being continously adjustable.

The shape of the filter curve can be either low shelf, bell or high shelf, with the possibility of blending between the three configurations.

TF-1 Filter Booster

TF-1 Filter Booster by Tortenmann / Telenordia