I have an Amp Supply LK-450 that has not sold so I am considering coverting it to 6m. Has anyone here done this or had it done? Did you add six to the aux position or make it a single band amp? Any info would be greatly appreciated.

Thanks!
Mark, K0XXX

I have the manual you are looking for... somewhere. I'll try to locate it and get a copy made. If you will e-mail me your address, I'll let you know as soon as it is ready and then I can mail it to you. You can get my current e-mail address on QRZ.com.

If I remember correctly, it is not a very large manual, somewhere around 50 pages. It should be relativley inexpensive to copy.

73,
Mark KØXXX

Has anyone had experience with having a ceramic tube rebuilt and can you recommend a particular company?

I'm considering getting a 4CX5000R tetrode rebuilt.

Thanks,
Mark, KØXXX

I own a LK-450Z and have the original manual. If you still need the info, drop me an e-mail at k0xxx@yahoo.com, and I will try to copy it and send it to you or perhaps try to get it scanned and e-mail it(which ever you prefer).

73, Mark

Thanks for your response. This model appears to be a 5 wire unit, though. At least there are five numbered screws for attaching the wiring. I had forgotten to look under the lower mast mount. The numbers on the bottom plate are BT 1 SER1  638.
Thanks again!
Mark

I've been given an old TRA-4 rotor that is in good shape. The previous owner said it was working when he took it down but he no longer has the controller. Does anyone know the model number of the controller that works with this model?

The rotor is quite old (probably 50's or 60's) but, it should be adequate for a small 2m beam.

Thanks!
Mark, KØXXX

Thanks for the input. I am building a ham shack on the hill over looking my home. The reason this placement of the amplifiers was considered is that I have aquired a corner section of "counter top" that has a long section on one side. I plan on using this as my "desk". I would have liked to have used the corner for the operating position and not had to cut the counter. This would require placing the rack at the end of the counter, some 12 or 15 feet away.

Now, I will cut the counter, placing the rack just to the left of the corner operating position, and then continue the counter on the other side of the rack.

The reason that I was planning on using hardline jumpers, was only because I have been given some that would have been perfect in length for the original positions.

I appreciate the help here. Right now the shack is about 3/4 wired. It won't be any trouble at all to move a couple of the 220 outlets to the new spot for the amps.

Thanks again!

I have several rack mounted amplifiers (VHF and UHF) that I would like to mount in one 7ft tall rack. The problem is (or rather, might be) that the rack would be located about 12 to 15 feet from my operating position. Other than being inconvenient, will I have a problem with this distance? I will be using hardline for all of the runs.

I am at the point of shack construction where I could rewire for 220 outlets that would be closer to the operating position and re-arrange things if I really have to or should.

Thanks!

Just a thought, but... I believe a bug zapper attracts bugs so it would probably make more sense to install it away from the porch, not on it. That way bugs are drawn away from the porch and maybe it would be further from your antenna also. We've installed ours about 75 feet from the porch and it has made a noticable difference. Also, when a bug gets zapped, small pieces of the bug can be thrown 5 - 10 ft. Something to think about if you plan to be sitting on the porch with a cool drink while the bug zapper is on. ; ? )

73, Mark KØXXX

Greetings,

My mistake entirely, it does have a cap. Here is the information that I received from the Yahoo group tubecollectorsassociation.

A half-wave vacuum rectifier. Pure tungsten catenary
filament 20 Volts @ 19 Amps 75 kV PIV 750 mA peak anode current.

I've also upoaded a picture of the monster to the group. Thanks very much!

Mark, K0XXX

Greetings,

Recently, I was given an old tube and I am curious as to may have been used for. It is a Westinghouse and the numbers on the base are WL 102A/23102. It stands approximately 16 ½ inches tall and has two pins on the base. I really have no use for it but it seemed a shame to discard such a neat looking piece of glass. So far, I have not beeen able to locate any info on the web regarding it. Any information on this tube would be greatly appreciated. 73 and thanks! Mark, K0XXX

I used a G5RV during the 2001 season and was quite happy with the results. Switching to a 4 element beam, this year however, made an incredible difference and I realized how much I probably didn't hear with the G5RV. Switching back and forth between the two produces about 7 S units increase in reception for the beam (a 4 element Comet). I have a friend near me, about 10 miles, who had been using a G5RV and has recently put up a 6 meter dipole. His signal increases from S7 to S9, as measured at my station and that of another friend who is 4 miles further away than I am, when he switches from the G5RV to the Dipole. Not very scientific but it does show that, as good as the G5RV is, just upgrading to a simple dipole makes a noticable difference.

Hope to hear you on 6 meters!
Mark, K0XXX

Greetings,

I recently purchased a Kenwood TS-520s for my son as a first HF rig. Does this rig require that a jumpered plug be inserted into the external vfo socket for operation?

Thank you for your time and consideration.

Mark, K0XXX

I have not tried this method on a ground rod however, I have done this with a 2 inch well pipe and sunk it to about 30 ft.  BUT, that was in SE Louisiana where there are no rocks and the ground is quite soft and moist all of the time.

If the soil is right, I don't see where it would be a problem.

Good luck,
Mark K0XXX

Rats! I had hoped to have one of these made when I bought a new vehicle this spring. I guess I shouldn't have waited.  I guess I can "un-bookmark" the site. Thanks for the info. 73, Mark