Copper Talk » Open Forum » Archived Messages » 2004 » 01/01/2004 to 01/31/2004 » base linear « Previous Next »

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tone
Posted on Thursday, December 18, 2003 - 12:39 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
what is a good base linear
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manwich
Posted on Thursday, December 18, 2003 - 1:45 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
One that does not "splatter across the band". How much power are you looking for? Tube amps seem to be quite popular, and are more spectrally pure with less filtering than transistor based rigs. Do you want to build or buy? If you want to buy, make sure you buy a bandpass filter/low pass filter for your operation. Building is quite fun and tubes are much more easy to come by than it would seem. What sort of operating do you do? You have to remember, if the band is open, 5 watts will do just as well as 20 most of the time, and I do operate 20 watts as the average most of the time.
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Ca346
Posted on Thursday, December 18, 2003 - 11:48 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
Tone:

I'm with Manwich, include in your budget planning a good low pass filter. Having said that, here's my recommendation:

"http://www.copperelectronics.com/cgi-bin/checkitout/checkitout.cgi?catalogSTORE:CKIE:prodW90-KLV500+"

I have one, and I have never used it past stage 3 or 4, which probably keeps it running cooler. It is a great amp for the price.
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Crafter
Posted on Thursday, December 18, 2003 - 11:44 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
I like tubes, anything with a pair 3-500z tubes or the 3cx1500a7 depends what you want to do the skys the limit.
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Czar
Posted on Thursday, December 18, 2003 - 11:11 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
Either the Klv1000 or the 1000p{depending on drive power}is a very good amp,fairly well built and good amp for the money.
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tone
Posted on Thursday, December 18, 2003 - 1:31 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
when you run a base linear in the house do you go throught tv and phone
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Freebird
Posted on Thursday, December 18, 2003 - 3:14 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
you will go through the phone for sure if its a cordless.
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Ca346
Posted on Thursday, December 18, 2003 - 3:21 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
Tone:

Depends. I use a COPPER KL-500 in the house as I said above. I also use a low pass filter before the coax leaves the house. Antenna is sitting at 50 ft up a tower. I get no interference in the TV or phone, but I do get my voice through the computer speakers in the other end of the house... I just leave the computer speakers off...
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Tech808
Posted on Thursday, December 18, 2003 - 6:23 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
Well, here is Our 2 cent's worth.

We Have and Use Several Amp's from Mobile Amps to the KLV1000.

All Equipment is Well grounded from Every Radio to Amp's to Antenna Switches.

And Each Radio has a Low Pass Filter attached Directy to radio via a Right Angle PL Connector. then Jumper from Radio to MFJ 1700B Switch Box on one side then Antenna Coax to other side.

All Coax including Jumper's are RG213.

We use 6' Jumper's from Amps to Antenna Switch

All Connector's Used are AMPHENOL and Soldered On!

We Generally have 4 or 5 radio's hooked up at a time that run thru our MFJ 1700B which allows us to have up to 6 Antennas, and 6 Radio's all hooked up at the same time.

Makes it very easy, we just flip a switch to whatever radio or antenna we are useing at the time.

I have each Leg of Tower Grounded Separtly and then all three legs tied together all 10' 3/4 Copper Rod's,

Then I have a separate 10' 3/4" Copper Ground Rod less than 4' from Equipment, Just for the Equipment.


We use three Sony 900 MHz Digital Cordless Phone's, and Fax Maxhine have Computer less than 3 feet from Radio Equipment and have no problem's with any of the Three tv's.

NO RFI PROBLEM's.

OVER KILL?

Maybe but NO PROBLEM's with Phone's, Fax Machine Computer or TV's

And trust me the 1st Sargant can get really upset if anything interfere's with her TV Program's.

Lon
Tech808
& 1st Sargant (Shirley)
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Crafter
Posted on Thursday, December 18, 2003 - 6:33 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
You can put a small disc cap across the speaker on most phones and stop the rfi. I get none till about 1,600 watts then I get the vcr but thats to be expected with todays electronics "THAT ARE MADE TO RECIEVE UNWANTED INTERFERENCE", but did you know each company if responsible to repair this? The fcc interferrence guide shows all that.
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Ca346
Posted on Thursday, December 18, 2003 - 6:45 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
Hey Lon:

How about posting a picture of the radio bench? (Not you and Shirley...) Sorry, but the radio set-up you described has really got the wheels turning.... I only have two groundrods on two tower legs... Ten feet to the extra groundrod for the staion....
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Tech808
Posted on Thursday, December 18, 2003 - 6:54 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
Ca346,

Well if I can get a break on Plowing this weekend, I will have 1st Sargant help me get thing's cleaned up and try and get a picture to post.
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Cm3885
Posted on Friday, December 19, 2003 - 12:55 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
What is a good linear you ask???????
One that uses REAL transmit tubes like 3-500Z's!!!!!!!!!!!!!!!
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Pig040
Posted on Friday, December 19, 2003 - 10:53 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
I have a Heathkit 200, and it has clean transmit, and does not come through my cordless phone, does come through the cheap computer speakers.
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Bullet
Posted on Friday, December 19, 2003 - 5:48 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
any thing like a drake,kenwood,yeasue,heathkit,
henry,ameritron,qro and many other quality made amplifiers made for ham use.
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Peddler
Posted on Friday, December 19, 2003 - 7:34 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
Well,. I don't see anything about a RM Italy KLV-550. I run one and like it very well for a base amp. I run a low pass filter amd have NO problems.
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Karatebutcher
Posted on Friday, December 19, 2003 - 8:27 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
Yes I use one TVI filter with my KLV 550 and just in case I have another in the mail from Copper, I stay on setting 1 when I use it, have had it three months and used it twice, once to talk to Buck. lots of fun, better than candy
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Buck
Posted on Friday, December 19, 2003 - 9:13 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
Well from the receiving end of a KLV-550 I would buy it in a heartbeat....It sounds awsome. Very clean and clear. I recently aquired a Palomar Skipper 300 and have gotten great reports with it. I am very happy with it
Buck
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Tech808
Posted on Friday, December 19, 2003 - 9:45 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
Buck,

Is it one of the NEW SKIPPER 300's or a Older used one?

There was a "Very Limited" Run of the NEW one's that were built by the same man that made the First Skipper's.

And if it is one of the New Skipper's it is already is a COLLECTOR's ITEM.

I think he Special Made 100 or less of them for 1 person Only the last part of 2002.

VERY GOOD AMPS!
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tone
Posted on Friday, December 19, 2003 - 9:38 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
HOW MANY WATT DO THE PALOMAR SKIPPER DO
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Buck
Posted on Friday, December 19, 2003 - 9:53 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
Actually it an older model... I have seen a pic of the new one...Nice looking amp. Mine does a good job for me. I just need to get a new meter ordered so I can use it:) I called to order one today but I couldnt get through on the landline.....I will try again on Monday. I think im going to go with the TC-4001P
Buck
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Karatebutcher
Posted on Friday, December 19, 2003 - 10:21 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
Lon I have the Palomar Skipper Blue fase base amp, it was a new one, really is sharp, all blue, pre amp, fan, three way power switch, I have had it about one year and a half .
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Crafter
Posted on Saturday, December 20, 2003 - 9:05 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
From 250 to 400 depending on drive on the old ones with 8950's or 6lf6's.
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Onw TwentySeven
Posted on Saturday, January 17, 2004 - 1:55 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
I kinda like the Demco 500 Plus. They are clean and run extremely cool. You can expect 800 plus watts too. It has three stages but they are hard to find. Mine works well alone or as a driver for my three tube 3-500z modified SB-220.