[Lowfer] 1 watt in class " AB " into 32 Ohm load, BW - 600 KHz, and it's an audio amp

[John Andrews]

LM386's and LM380's are pretty useless at 185 kHz. Awful waveforms, and 
no where near their rated power in the audio range.

John, W1TAG

On 11/24/2010 3:24 PM, jrusgrove at comcast.net wrote:
> That's just NJR's version of the old LM386. Can send a couple of them to you via First Class Mail.
> Just say the word.
>
> Jay
>
> ----- Original Message -----
> From: "Andy - KU4XR"<ku4xr at yahoo.com>
> To:<lowfer at mailman.qth.net>; "Part-15 Yahoo"<part15 at yahoogroups.com>
> Sent: Wednesday, November 24, 2010 2:48 PM
> Subject: [Lowfer] 1 watt in class " AB " into 32 Ohm load, BW - 600 KHz,and it's an audio amp
>
>
> I have been trying to come up with a Linear circuit to connect to
> the low level RF Out jack on my FT757GX-II that will boost the
> 0.1 Vrms up to the 1 watt DC Input level for Part-15 lowFER work.
> Yes, there are " Boo-Koo's " of them out there, and each with its
> own difficulties to incorporate; Transistor, Op Amps, Audio Amps.
> And then I ran across this in a wide catagory parts search:
>
> http://www.mouser.com/ProductDetail/NJR/NJM386BD/?qs=sGAEpiMZZMuMkwKcEjFF1DDb%252bMmvCPhMlz2Bffg3ciY%3d
>
> Data sheet is available on the product page. Very intrigueing to
> me... The only thing that bites is; $ 1.14 worth of parts for 2,
> and $ 6.50 to ship it... Uughh
>
> 73 all: and Happy Thanksgiving
>
>
> Andy - KU4XR - EM75xr - Friendsville, TN. USA
> LOWfer Beacon " XR " @ 185.29875 KHz
>
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