[AMRadio] AMPS for LP 10 Meter Rigss

[Mike Duke, K5XU]

I've seen one or two of the Lafayette HA250 amps on Ebay over the past year 
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 of 
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 250 
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 of 
6kd6 tubes. I was running a Yaesu FT7 at the time, and considered getting a 
friend to help me build one, but we never got around to it.

Mike Duke, K5XU
American Council of Blind Radio Amateurs

Re: [AMRadio] AMPS for LP 10 Meter Rigss

[crawfish]

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.

Joe W4AAB
- Original Message -
From: Mike Duke, K5XU [EMAIL PROTECTED]
To: Discussion of AM Radio amradio@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
year
 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
of
 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
250
 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
of
 6kd6 tubes. I was running a Yaesu FT7 at the time, and considered getting
a
 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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