[Heathkit] SB104A finals

[Benton's Mail]

Robert,
The CD2554A transistor crosses to the MRF 450A. IMO, The Motorola 450A 
devices are a bit more robust. Four of them will yeild 110 to 125 watts out. 
I have replaced several finals, and I have never had one fail. FYI --- the 
drivers are MRF 314A.
RF parts has them, but they aint cheep!

Are you sure all 4 of the original devices are bad?

Benton  wb5twc


----- Original Message ----- 
From: "Robert P. Ward" <wardbnj at comcast.net>
To: <heathkit at mailman.qth.net>
Sent: Sunday, March 01, 2009 11:21 AM
Subject: [Heathkit] SB104A finals


> Hi list
>
>
>
>                I'm looking for a set of (4) CD2664A transistors for the
> final amplifier
>
> in my SB104A. Any help would be appreciated.
>
>
>
>                                                Bob Ward   NQ3N
>
>
>
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