[50mhz] Lunar Pre Amp

[jeremy-ca]

And Chip designed some of the ARRL Handbook preamps. The Siliconix U-310 is 
in the latest Mouser catalog.

Carl
KM1H


----- Original Message ----- 
From: <mweisbergs at juno.com>
To: <50mhz at mailman.qth.net>
Sent: Friday, August 24, 2007 10:33 AM
Subject: Re: [50mhz] Lunar Pre Amp


> The Lunar PAI50B was a receiver preamp designed by Chip Angle, N6CA,
> which used a grounded-gate FET and had a Noise Figure of 1.6 db, a gain
> of 11.0 db and a 3 db bandwidth of 2.5 mHz. The "B" suffix indicates it
> was fitted with SO-239 connectors. It drew 10 ma @ 12 Vdc Now I never had
> one, but I do have a Lunar 9M10-120P, a 120W amp that has a built-in
> preamp. As the specs are the same as those of the PAI50, I would assume
> it's the same preamp. If so, the transistor is a U310 which -- I think
> -- was possibly made by Siliconix. Unfortunately I have no values for the
> components as they varied with the frequency range. The two trimmer caps
> are 3-20 pf and 1-7 pf.. Hope this is of some value.
>
> Bud, K2YOF
>
> On Fri, 24 Aug 2007 07:05:02 -0400 Ray Keefe <KC2GMN at VERIZON.NET> writes:
>> I haven't been able to locate any info on the usual sites about a
>> Lunar  PAI50B 6 meter receive preamp. Mine just went dead recently
> after a
>> lightening strike near my house recently.
>
> Moderator: Ray Brown, KB0STN
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