[Tech-Assist] MRF

[It's Dave]

RF Parts have sold me TUBES that were supposed to be Russian or "Taylor."
With the help of Svetlana USA I was able to know these were cheap chinese
imports relabeled as they wanted.

It's possible that it could be happening with RF transistors too.



----- Original Message -----
From: "wpio" <wpio at gate.net>
To: "The Brain Trust" <tech-assist at radiolists.net>
Sent: Tuesday, June 19, 2007 12:58 PM
Subject: Re: [Tech-Assist] MRF


> The MRF 151g is a Motorola 300 watt rf power chip (MOSFET)
> used in the pallets of most of the SS drivers/transmitters
> I've seen.
>
> The 500 watt amps incorporate two of these chips.
>
> The two chips I fried have the MaCom brand on them, not
> Motorola.  RFParts sells them for $115.
>
> BLF278 is the same thing by Phillips, with minor differences.
>
> I have had enough successes over the years to make me think
> I can "do this at home."  P-tek charges $900 flat fee to
> repair the 500 watt amps.  That's a lot of money too, and
> shipping from FL to San Jose is expensive.
>
> Randy
>
>
>
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>



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