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Reviews Categories | Amplifiers: RF Power - 6M/VHF/UHF+ | Teletec 2m & 6m bricks Help


Reviews Summary for Teletec 2m & 6m bricks
Teletec 2m & 6m bricks Reviews: 7 Average rating: 4.6/5 MSRP: $329
Description: Class AB2 linear amplifier
Product is in production.
More info: http://www.ssbusa.com/telintro.html
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N0SP Rating: 5/5 Aug 3, 2008 21:21 Send this review to a friend
Solid, Cool-running, reliable  Time owned: more than 12 months
I was very fortunate to find this little jewel when a friend decided to sell it. This is a very well built unit. The term "brick" is certainly applicable here. The "Walmart" amps out there with their thin extruded heat sink (sharp edges!) and light weight are no comparison to the heavy castings used for these amps. The finish is a very robust wrinkle coating and the sheer weight of it allows you to run full power (key down) for a very long time before anything gets even warm to the touch. If you somehow happen to overheat it,(I've never come remotely close) a thermal sensor shuts it down. The SWR protection circuit works very well also. There are several very well thought-out features of the unit including an easy connection for a hard keying relay (if you don't want to use RF-sensing) and (my favorite) a VERY tame (receive)preamp that is protected by a bandpass filter. The useless (noizy overpowering) preamps in the Mirage (really MFJ) amps do nothing but slam the front ends of your receivers. The preamp in the Teletec is of a modest 6 to 8db-gain design that overcomes local losses in cabling, filters, relays, etc. plus a bit. Since it's protected by the band pass filter there is no trashy intermod from paging transmitters and commercial repeaters. Note... this *could* be a disadvantage if you want to use your 2-meter radio to also listen up in the VHF police band while the amp is in the circuit. You'll find that by the time you get to 160mhz your radio is pretty deaf. This is a clear advantage, however, if you're going for 2-meter performance. Keep in mind that the bandpass filter is engaged even when the amp is bypassed. So simply turning it off won't bring back those police/fire frequencies. Don't even think about leaving it line with a dual band radio & antenna system unless you have a VHF/UHF splitter. The Teletec will NOT pass 440mhz energy through it. Also, if you're using an external mast-mounted preamp and don't desire to use the built-in preamp it can be disabled through a plug on the back.
This is a very efficient unit in terms of input vs. output, and it provides a very clean signal. The output transistors are absolutely kept in AB2 by a regulated bias supply, not just a few zeners to ground like every other amateur amp. Some of these amps actually go in to class B or C when driven hard.
I'll mention one more thing.... some amp builders are STILL using plain (unfinished) aluminum on their heat sinks. This is absurd. The coeficient of (heat) radiation is several times greater with a black surface.
To conclude; this is a set-and-forget amp that should give years of service. Teletec is really a commercial provider of amplifiers and it is quite evident in this unit. They no longer build this amp, but if you can find one I'd highly recommend it.
73,
Dennis
N0SP
 
VR2XMQ Rating: 5/5 Jun 24, 2007 22:52 Send this review to a friend
This is the one!  Time owned: more than 12 months
Purchased my DXP-L180 during the last cycle and running it at full power today on 6M. Built as solid as a rock and not like your run of the mill solid state linears.

If you run at full power, you should add a fan to keep it cool.

I would not part with mine for love or money.

I you can find one, grab it!

Steve, VR2XMQ
 
KR9Q Rating: 5/5 Jan 24, 2004 20:55 Send this review to a friend
Excellent...IF you can find one  Time owned: more than 12 months
I have serial number 134 and it has performed flawlessly since I bought it over 9 years ago. I would buy another if I could find one.
 
K1UHF Rating: 5/5 Jul 23, 2003 22:15 Send this review to a friend
The only amps that are linear, forget Mirage junk.  Time owned: more than 12 months
Teletec is the only maker of solid state amateur radio amplfiers that are linear. They are the only ones that use active bias circuits. Simple diode bias as used in Mirage, RF Concepts and TE Systems amps simply cannot provide linear operation.

Look at the input versus output power ratings of a Mirage amp, for example. Twice the input does not produce twice the output. This shows their amps are not linear and they have the nerve to advertize that and say it can be used for SSB. Fine for FM or CW but makes a bad sounding and wide signal on SSB.

The Teletec is also very well made and engineered.

 
DY1BGA Rating: 2/5 Feb 12, 2003 20:02 Send this review to a friend
clean output  Time owned: more than 12 months
i have DXP V175 since 1997, but im using only 2 months every year everytime im on vacation at home.DXP V175 is my first liniear amplifier, it works very nice. but for now i think the finals is burned already,,last time i used it i smell some burning and the power output shut down,,did somebody can help me what finals i can use just in case i cannot find original finals....

73,
Noel
 
N3HSH Rating: 5/5 Mar 20, 2002 00:02 Send this review to a friend
Ruggedly built, clean output.  Time owned: more than 12 months
I have used both the 2m and 6m Teletec bricks for seven years. They are extremely well constructed and put out a clean signal. I consistently receive unsolicited reports about the quality of my signal when using these amps.

 
N1QVE Rating: 5/5 Sep 23, 1999 22:44 Send this review to a friend
Teletec bricks = superior devices  Time owned: unknown months
Hi friends. I run the Teletec 2m all-mode DXP-V175 and 6m all-mode DXP-L180 bricks, primarily as the firepower in our rover operations but often in general mobile use. They are very reliable and put out a clean signal. Reviews and commentary in the weak-signal community generally conclude that Teletec amps are the all-around best in design/manufacture/signal quality; that's why I bought mine. Email to Teletec brought a quick reply and a nice mailing. Just my 2 cents (about all I have left 'cause of this blessed hobby :) 73 de N1QVE in NW CT.
 


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