Do you need an RX antenna preamplifier? So why to pay a lot of money for semi-professional products? Do it yourself! (... and cheap ...)

In this auction, you can buy bare double sided trough plated PCB with the solder mask for HF (short wave)  W7IUV design antenna preamplifier.

This PCB is for 5N5109 or DCP68 transistors.

New revision with added output attenuator! If you need to lower the output signal or you need a better matching for the next stage or cable
you can solder there an attenuator in PI network configuration. Nobody is offering this variant on board!

At the additional pictures, you can see an example of practical realization and the results of measurements.

Schematic in PDF of my amplifier is here:

Copy this link to your favourite browser =======>>  tecdoc.maweb.eu/w7iuv.pdf

Check my blog  and use automatic Google translator. Blog is in the Czech language.

Copy this link to your favourite browser =======>>  blog.ok2zi.cz/2014/04/predzesilovac-w7iuv-mereni-w7iuv.html

Copy this link to your favourite browser =======>>  http://blog.ok2zi.cz/2017/12/predzesilovac-w7iuv-mereni-ii-w7iuv.html

There is a lot of useful info and measurements.

See my other auctions. I always combine the shipping fees.

2.8 USD shipping = normal letter, no insured, no responsibility of delivery. This is at your own risk!

6.0 USD shipping = signed and insured letter, with tracking number. Delivery is sure or you will get a full refund. It is the best choice for you.

Important information and terms and conditions: 

Even the postal services are about 99% reliable, sometimes could be something lost. I do recommend using signed and insured letter.

Yes, it costs more, but you can be sure, that you will get it or it can be fully refunded. I am sorry but I cannot be responsible for a normal

letter. I cannot manage worldwide postal services. I do always my best, but when I post you goods at the post office, my role is finished.

Do not write me, where is my ..... I want to refund .... etc. I am an honest man and if you don’t believe, please use signed and insured.

Especially if you are from Russia, Middle and the Far East, Italy and sometimes from the UK too. 

If you have selected economy shipping, without tracking. DO NOT OPEN THE CASE or ask for the refund!  You took a risk and I cannot do anything. 

I am giving you a possibility to get a cheap shipping, but it is out of my control if it will be delivered or not.  

During last time, there are several cases from Italy and Germany as well. It will lead to the strict requirement for signed and insured shipping ONLY (= more expensive for you). 

If you want to keep the low shipping fees in my auction, respect my rules, please. 

  

DO NOT BELIEVE eBay's estimated delivery time!

eBay does not know Czech or Worldwide postal system well. 

The delivery time is sometimes faster than proposed by eBay, but very often is slower (especially for overseas shipping and the UK included!!). 

I am trying to do my best, in 90% I am shipping first working day after the purchase, but the delivery time is out of my control. 

If you are in a hurry, ask me in advance and I will send you an offer for EMS shipping.   Thank you for the understanding and cooperation.