Doctor Klyachin`s laboratory

MODELS

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Preamplifiers

H-2

The two-stage single-step circuit without negative feedback. , transformless output.

Type of tubes - 6N15P and 6N6P - the first version. Type of tubes - 6N15P and 6S19S - the second version.

For coordinated work with headphones, having 30, 100, and 300 Ohm of resistance, the amplifier has a three-position switch.
Two line inputs and one line output.

Working together with our transistor amplifier TA-2, the preamp mini allows to reach perfect sound of AG-1 hybrid model .
It can also help to eliminate or reduce the lifelessness of transistor amplifiers made by other producers.

Price:

- 48000 rubles.

H-2-mkIII

Version H-2 with an additional, second output for low-impedance headphones with an impedance of 8 to 30 ohms. Headphones with an impedance of 8 to 80 ohms can be connected to this output. A three-position switch allows you to choose the best sounding match with different headphones, both for low-ohm output and for standard output into a load from 30 to 300 ohms.

Price:

- 61200 rubles.

It is possible to manufacture an external matching block for H-2. The output of the matching device is designed to work with low-impedance headphones. The kit includes a 70 cm audio cable to connect the signal from the output of the H-2 to the input of the matching device.

Price:

- 15400 rubles.

PreAmp-1

Transformerless tube preamplifier.
One stage, single-ended circuit without negative feedback.

Type of tubes- ECC85.
Three line inputs and one line output.

See TA-2 and TA-2 as a part of Ruslan`s audio system. We thank Ruslan (our dealer) for this pictures.

Price:

- 37500 rubles.

Attention, in connection with instability of the prices of materials and equipment elements , all prices are given approximately. The exact prices will be calculated by preparation of the order for products.

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Auxiliary devices

(Please discuss with us the possibility of ordering)

Power supplies.

PS-1-5,

PS-1-12,

PS-1-5-12

PS-1-5-7-12

For multimedia consoles.

With one output voltage of 5 Volts, PS-1-5. Price: - 43200 rubles.

With one output voltage of 12 volts, PS-1-12. Price: - 47600 rubles.

With switching the output voltage to two values of 5 or 12 Volts, PS-1-5-12. Price - 55900 rubles.

With switching the output voltage to three values of 5 or 7, or 12 Volts, PS-1-5-7-12. Price - 60700 rubles.

The output current is 2.5 amperes.

The output cable ZKI from the power supply to the console. Price: - 11700 rubles.

S-2

Switch between speakers and headphones.
S-2 is intended to create headphone output in our amplifiers. It has a toggle switch to choice between speakers and headphones.
Cables for the section "amplifier - switch" are to be ordered separately. Usually we produce cables not shorter than 2 M, but in a set with S-2 we accept orders for 2 cables, each 1 m. long for connection between amplifier and switch.
On the photo - the previous model of the switch. Currently we accept orders for S-2 with three-position toggle switch for agreed work with headphones, having 30, 100, and 300 Ohm.

Photo of new S-2

Price: - 20200 rubles.

Switch SMA

Switch on the front panel allows you to choose between three five-channel signal sources and two stereo sources. The switch has five positions of the input selector.

You can use it to signal on the five-channel amplifier or amplifier with fewer channels.

The selector is passive. Power of the network is required only for reed relay and for indication of selected input.

See another photo.

Price:

- 64000 rubles.

Voltage optimizer

Autotransformer with a set of output sockets. Eliminates the average deviation of the mains voltage. Improves the sound of the audio system.

View more: photo 1

photo 2

Price with a black front panel - 66500 rubles. With veneered front panel - 73800 rubles.

Attention, the products are made to order with 50% prepayment. The making takes approximately two months.

Ready products are by 20% more expensive. (Except special proposals from the section "Ready products " ).

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