2 pieces CLANSMAN POWER AMPLIFIER 25W 27-90MHz / # 6849

Description

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In this auction we offer:
You are purchasing 2 pieces in this listing.
I offer you an amplifier designed to work with military radio stations.
Originally, this amplifier was used with CLANSMAN family radios operating in the 30-76MHz range. However, tests have shown that the amplifier works well in the 27-90MHz range.
Attention!
It is practically the only amplifier that does not need any other connection to the radio, apart from the RF cable.
Thanks to the circuitry inside the amplifier, after applying the HF voltage to the input of the amplifier, the amplifier automatically switches to transmit. After HF power failure from the radio, the system switches to reception automatically.
The amplifier has very complex output filters.
Filters are switched by an external switch.
Filters have 3 sub-ranges.
The amplifier also has an "amplifier bypass" operating mode, i.e. an RF signal. it gets through the amplifier to the antenna without activating the amplifier (it remains in the "receiving" mode all the time).
Technical data:
Amplifier power supply: 22-30V DC
Current consumption at 25W output power: approx. 2A
Amplifier working class - C (AM and FM or CW)
The amplification factor in the range of 30MHz-76MHz is 6, that is, with 4W of input power, the output power is about 25W. In the range of 27-30MHz and 76-90MHz, the gain factor is smaller and amounts to approx. 4
Dimensions: 22.5 x 9.5 x 9 cm
Weight: 1.5 kg
The amplifier is made very solidly.
The output transistor is a 60W transistor, so it has a considerable power reserve.
We made an attempt to transmit on an artificial load for 1 hour. The amplifier was slightly warm.
The entire enclosure of the amplifier is a heat sink, it is hermetic, it has a moisture absorber bag inside.
The offered amplifier was intended for field radio stations, so it is solidly built (like Soviet technology, or better).
Attention!
The whole circuit is made "on foot" (no integrated circuits, only transistors), by means of spatial assembly. This creates very favorable conditions for all kinds of modifications.
You can tune the output filters, which are the adjusters together, to work in the HF range.
The offered amplifier is operational, tested in very good technical condition.
The housing may have scratch marks or paint spatter from use.
Of course, we provide a start-up guarantee.
The offered amplifier works great with all kinds of radiotelephones and radio stations.
The system switches to transmission with an input power of approx. 1.5.
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Shipment
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