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Re: [Amps] Uruguay Amp Project

Subject: Re: [Amps] Uruguay Amp Project
From: Felipe Ceglia - PY1NB <>
Date: Fri, 07 May 2010 16:39:13 -0300
List-post: <">>
Hmmm... I forgot to mention that in junkyards one eventually come across some 
amps debris. Unfortunately there are usually no transformers as they are 
to sell the copper in it.

I got my heart broken when I came across debris of two Harris RF-110 amps on 
such a place. I looked around as crazy for the PS, but they had been gone.



Felipe Ceglia - PY1NB wrote:
> Hi,
> This is not a CX privilege. Here in Brazil we have the same problem.
> You cant just browse a website and ask for something you need. If items are 
> heavy and expensive, its a budget nightmare to bring it in. High shipping 
> costs, 
> and high taxes (sometimes up to 100% the product value, depending on shipping 
> method).
> So, the way is to wander around junkyards and collect everything that seems 
> like 
> would be useful for a QRO project. You end up with a love of junk in the 
> attic 
> (wives love it) and there are always some parts missing...
> 73,
> Felipe
> Patrick Barthelow wrote:
>> Folks, 
>> In the course of helping a YL build an amp in Uruguay, I am making progress, 
>> but am amazed at the challeges faced by hams there, and probably other small 
>> countries, who want to buy or build ham gear, particularly amps.  I found an 
>>  insider representative in the Uruguay broadcast tramsmitter industry who is 
>> looking for spare broadcast transmitter parts, suitable for Amateur amps, 
>> such as tubes, transformers, power supply parts, etc for this ham.
>> He said, in the commercial TX world repairs or parts acquisition is 
>> difficult and expensive, and a main vendor they rely on is Nebraska Radio 
>> Sales.  OUCH(!)  NRS seems to have insanely high prices on QRO RF 
>> components, at least to me they seem high.  To add insult to injury this 
>> insider says every purchase, say for a $1000 vacuum variable, or say a 
>> transformer has a $1000 (equal amount) dollar duty tacked on before he can 
>> bring it in. OUCH!  Says there are a lot of solid state Broadcast TX there, 
>> but also a lot of older tube transmitters, in the 1-10KW range as spares, 
>> backups so I am hopeful to find the heavy parts for a power supply there, to 
>> save money...In the olden days, here, the 4-400A was a common find if you 
>> trolled radio station engineers for spares, probably not so much any more. 
>> As to commercial ham gear I bet they also pay a super high tax on retail 
>> gear brought in, so anyone in CX land on the air, has committed considerable 
>> economic effort to do so.
>> I wonder if this lady could find usable components in a junked 1KW microwave 
>> oven for a power supply, diodes, or caps, transformer, etc?  The last 
>> microwave oven that I took apart, had some hefty lookig HV diodes, and what 
>> looked like a transistorized flyback style HV generator.   I will have to 
>> look through arciived threads on the reflector here....
>> Best Regards,   
>> 73, de Pat Barthelow AA6EG
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Felipe Ceglia - PY1NB
PR1T team member /// Rio DX Group member /// Araucaria DX Group member /// ///
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