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  • February-05 2020 00:38:22

    Before connecting, use silicone grease under the transistors. The maximum voltage is 12 V. The transistors operate in class A. At 12 V, the current is 0.45 A. 1.25 W output power, 27 dB power gain at f = 400 MHz.It will be good as a class B symmetric output stage driver. Delivery time was 60 days.

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  • January-14 2020 22:26:02

    Good value... but can be modified to work better by reducing the bias current on the output stage. Resistor R6 needs to be reduced. Can use a small (10k) trimpot to make adjustable.

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  • August-22 2020 10:07:06

    Werkt goed bij een voedingsspanning niet hoger dan 10 volt 100ma. Ingebouwd in een metalen behuizing, met een opening waar de koelvinnen doorheen steken.

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  • August-04 2020 14:02:07

    8 day delivery from the UK-store

    Kommentar (1)
  • July-25 2020 08:42:43

    As previous comments. Max 12VDC no more. With 12VDC vertical alignment and addition ventilator are necessary.

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  • July-06 2020 23:04:05

    Powered up on 15.03 VDC as specified and transmitted. It fried in 10 seconds. I suggest using only 12.0 VDC NO MORE. Awaiting new order.

    Kommentar
  • February-27 2020 07:28:16

    Good working ampifier with low noise level. For continuous operation I recommend additional air cooling.

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  • November-27 2019 05:23:38

    Nice & functional. Some frequency output is 2F.

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  • November-26 2019 20:46:31

    Buenas, no llega este producto a ecuador por favor necesito ayuda para rastrear el pedido ya pasó el tiempo estimado de llegada al pais de destino.

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  • August-05 2020 05:06:31

    Very pleased, worked as soon as connected.

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