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Характеристики
Pre-biliary stage-PRT06A tube pre-stage amplifier kit (pre-biliary stage) Mades circuit | Электроника
История изменения цены
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| Месяц | Минимальная цена | Макс. стоимость | Цена |
|---|---|---|---|
| Feb-19-2026 | 3771.36 руб. | 3846.90 руб. | 3808.5 руб. |
| Jan-19-2026 | 3058.43 руб. | 3119.7 руб. | 3088.5 руб. |
| Dec-19-2025 | 3711.10 руб. | 3785.14 руб. | 3748 руб. |
| Nov-19-2025 | 3682.37 руб. | 3756.71 руб. | 3719 руб. |
| Oct-19-2025 | 2939.15 руб. | 2998.30 руб. | 2968.5 руб. |
| Sep-19-2025 | 3622.19 руб. | 3694.74 руб. | 3658 руб. |
| Aug-19-2025 | 3592.45 руб. | 3664.48 руб. | 3628 руб. |
| Jul-19-2025 | 3563.93 руб. | 3634.74 руб. | 3598.5 руб. |
Описание товара
Zeluo prebile stage-PRT06A tube preamplifier (Fever prebile stage)
Refer to Mades Circuit (280V version)
This is the kit price, does not include electronic tubes, and needs to be tested by self-welding.
When doing the development of this project, we searched for similar products on the Internet a little bit, many of which were only the remaining title parties. The power supply of dozens of V was reduced and then reduced....
We refer to the original Mades (high voltage 400V power supply, and tube, the first stage is 12AX7, the second stage is 12AT7)
According to the actual situation, we are divided into two and developed separately:
1. PRT06A(280V single-tube version, economical and applicable)
2. PRT06B(400V parallel version, fan type)
PRT06A design thinking:
1. Compared with the original 400V power supply, 06A uses 280VDC DC stabilized power supply, which is convenient for customers to use 400VDC withstand voltage filter capacitor.
2. The screen voltage is consistent with the original machine.
3. The resistance is appropriately modified to make it equal to half of the current of the original machine (I. e. consistent with the actual single triode current of the original machine)
4. DC filament power supply to avoid the influence of voltage fluctuation on filament
Listening Sense:
The 12AX7 12AT7 of Dawn is used in the test (12AX7 is also measured at the same time), and the maximum appears in the low frequency. The depth, strength and bounce of diving are incomparable to many stone front stages. When the imported tube EN general foot test is used, the details are richer, the background is quieter and more mellow.
PCB size: 100*177*1. 6MM FR4 grade a board
Power supply requirements: 0-220VAC * 40mA,0-15VAC @ 1A
Please note that the high-voltage input should not be directly connected to the city power grid 220V, so life will be in danger in case of leakage,
Say the important thing three times:
Can't connect 220V to the city power grid
Can't connect 220V to the city power grid
Can't connect 220V to the city power grid
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