[AMRadio] AMPS for LP 10 Meter Rigss

crawfish crawfish at surfmore.net
Mon May 23 22:51:03 EDT 2005

I have a Knight T-175 and can send a copy of the smanual with schematic
cheaply. I am reworking it for someone. I am trying to convert it to 6, as
the only coil I had for it was 10m. I need the dimensions for the 6m coil.I
modified the 10m coil but want the correct dimensions.

----- Original Message -----
From: Mike Duke, K5XU <k5xu at jam.rr.com>
To: Discussion of AM Radio <amradio at mailman.qth.net>
Sent: Monday, May 23, 2005 8:37 PM
Subject: [AMRadio] AMPS for LP 10 Meter Rigss

> I've seen one or two of the Lafayette HA250 amps on Ebay over the past
> or so.
> Another possibility is the Knight TL175 which also shows up occasionally.
> If anybody will admit to having one, the old Sonar BR21 should also work
> well as long as you watch the drive level. Okay, so, that dates the time
> my pre-ham radio activity!
> To their credit, the FCC has made Ebay be more careful of amplifier sales,
> so you don't see nearly as much of the CB trash amps there as was once the
> case. I'm sure some are there disguised one way or another.
> For the ambitious builder, when the novice power level was raised to the
> watt level, there was a sweep tube linear in QST and in a few editions of
> the Handbook. I think it was in the late 70s or early 80s, and ran a pair
> 6kd6 tubes. I was running a Yaesu FT7 at the time, and considered getting
> friend to help me build one, but we never got around to it.
> Mike Duke, K5XU
> American Council of Blind Radio Amateurs
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