Tag Archives: Ten-Tec

Ten-Tec Model 418 100 Watt Amplifier now shipping

The Ten-Tec Model 418 100 Watt Linear Amplifier (Click to enlarge)

(Source: Ten-Tec)

TEN-TEC Inc. Announces the Model 418

160-6 Meter Solid State Linear Amplifier in stock and ready for shipment

Generating 100 Watts of output from as little as 5 Watts of input, the Model 418 Amplifier raises the bar for reliable and efficient recreational, emergency, and even contest communications.

TEN-TEC Engineers have utilized state of the art, silicon MOSFET technology to create a continuous 100% dutycycle operations in both CW and SSB Modes. The Model 418 is also compliant with AM, FM, AFSK, and PSK modes of operation.

Measuring only 3.625” x 6.5” x 7.6” inches and weighing just 5.4 lbs, the Model 418 will operate from any 13.8VDC (+/-15%), 20 Amp power source.

Designed to interface with the new TEN-TEC Model 539 QRP Transceiver, the Model 418 amplifier can be easily connected to most low power transmitter designs (20 Watts or less input). The amplifier’s comprehensive User’s Manual and TEN-TEC’s industry standard Technical Support department make set up quick and easy.

The Model 418 can switch bands automatically or manually. It also has a two position manual antenna switch. Bypass operation allows low power operation until higher power is needed.

The Model 418’s large LCD front panel readout gives the operator essential information about Output Power, SWR, Operating Voltage, and even Operating Temperature.

The TEN-TEC Model 418 Amplifier is competitively priced at $785.00

Don’t for get to send us your latest Shack Photographs and submit links to your club or community event for the community page. This is a great way to get some exposure for your organization or a community event station.
The TEN-TEC SSB Net meeting frequency has changed to 7.260 LSB Sundays at 4PM Eastern Daylight Saving Time.

Jim Wharton, NO4A
Vice President

Sneak peek: Ten-Tec Model 539 Argonaut VI and Model 418 Amplifier at FDiM and Hamvention

Yesterday, I had the opportunity to see the new Argonaut VI and Model 418 100 Watt amplifier up close and even operate them.

Though I’ll keep my comments short–I have a l o n g day at the Hamvention ahead of me–I thought I’d share a few first impressions.

The guys at Ten-Tec were kind enough to allow me to take a few shots of the Argonaut VI and the Model 418 Amp, both in Hara Arena and at Four Days In May yesterday.

Contest conditions

If you’re coming to the Hamvention, you will want to stop by the Ten-Tec booth. Through some sort of feat of engineering (or–as I first thought–dark magic!) they have a recorded chunk of 20M spectrum taken from a recent contest. They’re feeding most of their rigs with this spectrum IQ and you, in turn, hear exactly what each radio will sound like. Not only that, but you can operate the radio as if “live”–tuning, adjusting filters, bandwidth, notch etc. Indeed, you can use any receiver feature on the rig.

Additionally, they have one of the Argonaut VI’s hooked up to a Model 418 Amplifier. With these two linked, you can operate CW into a dummy load. Through this set-up I got a very good idea of how the Argonaut VI sounds and how well the amplifier works in conjunction.

First impressions are very positive.  A few notes about the Model 539 Argonaut VI:

  • Very low noise floor.
  • Excellent audio fidelity.
  • The knobs, buttons and all features are quite easy to operate.
  • The filters (especially as tested in CW) are simply amazing. I think they are comparable to the Ten-Tec Eagle.
  • I like the size–slightly larger than an FT-817, much smaller than the Argonaut V.
  • All of the important controls are right there on the front: AF/RF Gain, Bandwidth/PBT, Power, RIT, Memories, Split, etc.
  • Nice touch: On transmit, the red dot in the Ten Tec Logo lights up on both the Argonaut and ‘418. See photos below.

Not many criticisms yet, but mind you, these are first impressions.

The Model 418 100 Watt Amp

Though the Model 418 was hooked into a dummy load, I was able to get a feel for how well the amp responded while sending CW.  I’m happy to say that the QSK is silky smooth. Ten-Tec has never disappointed me on this point–their QSK is a benchmark.

Tomorrow, I will post the price of the Model 418 Amplifier–as I mentioned before, the Argonaut VI pricing is at least a few months off, most likely.

Many of you asked about the omission of 12 and 60 Meters. I asked Ten-Tec about this and, in short, it was a balance of performance vs. features. Through their research, they found that 12 and 60 would be the least missed, while 160M would be a great addition (initially, they did not plan to add 160M).

In an effort to save time, I’m simply posting a load of photos below in a thumbnail gallery. Simply click on the thumbnail to enlarge each photo. Feel free to comment and ask questions if you can’t make it to the Hamvention.  I will do my best to answer.


The Ten-Tec Argonaut VI: the Model 539 QRP transceiver follows the legend (while we follow the spec sheet!)

I well remember first speaking with a Ten-Tec rep at the Ten-Tec Hamfest last year when the company first displayed the concept Model 539 transceiver, which was beginning to generate enormous interest.  After viewing it, I casually asked the representative what the name of the new radio would be–? When he shrugged his response, I came to the point: “Will it be called an Argonaut?” “Time will tell,” he eluded.  But in retrospect, I realized his response was not so much evasive, as it was fair–an honest attempt to protect the original Argonaut line’s name.  Ten-Tec apparently wanted to finish the rig, to vet it thoroughly, and deliver performance that would live up to the legendary Argonaut status.

Now, it appears they’ve done it.  And the name?  Yes, folks–Ten-Tec has officially christened the new rig the Argonaut VI.

Introducing the Ten-Tec Argonaut VI

Ten-Tec, having been made aware of our avid interest in their new product, has been kind enough to provide QRPer with a preliminary spec sheet for the Model 539, and they’re permitting me to post it here, for the first time, today (see link below).  As you can see at the top of the page, it very clearly states that the ‘539 will be called the Argonaut VI.

Ten-Tec also allowed us access to the spec sheet for the new Model 418 Amplifier, which (to keep this post brief) will be featured in this separate post.

Click here to download the Ten-Tec Model 539 preliminary spec sheet

Ten-Tec tells us that the receiver on the Argonaut VI will perform much like the one in their Ten-Tec Eagle (Model 599). But you can hear it for yourself at the Hamvention: There, they’ll have a recorded contest playing over all of their rigs–including over the new Argonaut VI–so that hams can listen to and compare their receiver performance.


You can download the Argonaut flier that Ten-Tec will hand out at the Dayton Hamvention by clicking here. It covers these vital specs of the radio:

  • Modes: CW, LSB, USB, AM
  • Receiver Type: Double Conversion, ASR
  • RIT: +/- 8.2kHz
  • CW Keyer built in: Curtis Mode B, 5-50wpm
  • Typical receiver sensitivity: < 1 uv
  • DSP Selectivity: 100 built in DSP filters from 100Hz.
  • Dynamic Range: 91db
  • Display: Multicolor back lit LCD
  • Rf Output power: 1 to 10 watts
  • Transmitter Duty cycle: 100% for up to 10 minutes
  • Frequency Coverage: 160 through 10 meters with the exception of 60 and 12 meters.
  • Power Requirements: 9.5-14 Volts DC (550ma on receive, 3 amps at 10 watt TX)
  • VFO: Two independent “VFOs” for single or split operation
  • Speed Sensitive VFO tuning rate
  • Frequency Stability: +/- .5ppm
  • Memories: 100

Availability and Price–?

The Model 539 Argonaut will be available late fall of 2012. Though the software is in final stages and almost ready for Beta testing, Ten-Tec says they are still ironing out the parts list and firming up lead times and prices. They will not, alas, have a price for the Model 539 Argonaut VI at the Hamvention, but say that they will have firm pricing on the Model 418 Amp by then (more on that here, and to come).

Some questions answered…

The Model 539 will only draw 550 mah on receive unsquelched. That’s not as low as an Elecraft rig, but for a Ten-Tec rig (that consumes a little extra juice for audio fidelity) that’s a fairly miniscule number. Especially considering that its predecessor, the Argo V, consumed nearly double that figure on receive.  In fact, I’ll bet it’s the lowest receive current on any digital/DSP transceiver they’ve ever produced. Indeed, this Argo VI is almost as good as the venerable Yaesu FT-817 unsquelched. As a result, I imagine this new-generation Argonaut will be a great radio to take to the air on Field Day, or even to take backpacking/HF-packing.

If the price is competitive, and that’s still an if, this could be a real winner for Ten-Tec, offering high-performance on a QRP budget. If so, this may be an affordable way to get into a top-quality new radio whose performance is benchmark-able.  Couple it with the Model 418 Amplifier to provide 100 watts output as needed…Quite promising!

The Argonaut VI (and Model 418) will be on display at Dayton, and will be fully-functioning.  I’ll be one of the first visitors at their booth in Dayton Friday morning, and plan to post further details (and possibly a few photos) during the Hamvention.  So, check back and follow the tags: Ten-Tec and Dayton.

So, what could the Argonaut name mean for this rig, in terms of performance? Time will tell! 


Just to be clear, all of this information came from straight from the horse’s mouth at Ten-Tec and is accurate-to-date.

We’re grateful to the folks at Ten-Tec for giving QRPer a preliminary look into these two products prior to the Hamvention, and allowing us to post their sheets so our readers can take a first peek. Thanks, fellas!

The Ten-Tec Model 418 100 Watt Amplifier update and spec sheet

The Ten-Tec Model 418 100 Watt Linear Amplifier (Click to enlarge)

Along with the newly released specs of the Ten-Tec Model 539 Argonaut VI transceiver, Ten-Tec has kindly provided QRPer with a spec sheet of their new Model 418 100 watt solid-state linear amplifier.

This versatile amp shows promise, and may turn out to be a really big seller for Ten-Tec. Perhaps their biggest.  Here’s why:

  • The Model 418 amplifier will work with almost any QRP rig on the market (new or used)
  • Just 5 watts in, delivers 100 watts out
  • It covers the full HF spectrum plus 6 meters
  • It has 2 HF antenna inputs with a manual switch, and a separate 6 meter antenna port that is automatically engaged when you switch to 6 meter operation
  • It offers an easy bypass mode
  • It offers auto or manual band selection
  • Power, SWR and voltage are all displayed on the back-lit LCD panel
  • It offers 13.8V DC input with standard Anderson Powerpole connection
Click here to download the Ten-Tec Model 418 spec sheet

Ten-Tec will announce the price of the Model 418 at the Dayton Hamvention this Thursday. We look forward to that, and once announced, will be sure to post it here, same day.

The upshot: If priced competitively, the Model 418 is basically a little box that can turn your Argonaut V, Argonaut VI, Yaesu FT-817, Icom IC-703, Ten-Tec Cub, Elecraft K1, K2/10, K3/10,  KX3, Index Labs QRP+, or most any other QRP radio on the market into a 100 watt rig. It appears to be truly plug-and-play, too, with auto band switching.

In my case, for example, this would be a very useful product. Though I primarily operate QRP, I do on occasion like a shot of extra power, such as when conditions are bad or I’m trying to bust through a particularly heavy pile-up. I rarely–if ever–run more than QRP when operating portable, though. The Model 418 could plug into my K2/10 while in the shack, and I could pump up the wattage as needed. It would also work with any future QRP rigs I may buy. When operating Field Day with my club, I could take the K2 and ‘418, which would give me a 100W transceiver without adding the 100W module to the K2, thus keeping the K2 lighter for my portable operations outside of Field Day.

Yep, as you’ve guessed, I want one already…!


Again–just to be clear–this is not idle speculation; the facts I’ve posted above, including the spec sheet, came directly from Ten-Tec today. We appreciate that Ten-Tec has provided us with the spec sheets for the Model 539 and the Model 418 prior to the Dayton Hamvention, exclusively for QRPer readers. Thanks, fellas!

Updates: The Ten-Tec Model 539 QRP Transceiver and the Model 418 Amplifier

Prototype of the Ten-Tec Model 539 QRP transceiver

I just received this update from John Henry (Ten-Tec Software Engineer) this morning:

Hi Tom,

We are making progress in several areas on the 539, it is coming along, and improving every day. We don’t have a price point we can speak about yet, as we are still trying to find the best working parts for a few of the items on the rig. And those parts, may affect our target. But still, we will surely beat the <$1k price that we have mentioned already. The speaker is now enclosed within the unit, similar to the 599. This is something that we knew we would eventually get done, just didn’t have it ready in time for the ham ventions to date. We will have a fully functional 539 on display at Dayton. Pre-orders at Dayton? I don’t think I will be confident enough on a real ship date yet to be able to take orders at Dayton. I don’t want to take orders at Dayton, promise a ship date, and then have it delayed for parts reasons. So, as soon as we know the parts are final, and FCC has passed, and we have all of the lead times and production times worked out and in the schedule, then we will be able to take orders. We do have the 539s in beta testing now, tweaking software here/there, finishing a few features, and soon will be able to send it to others for their inputs.

The Ten-Tec Model 418 100 Watt Amplifier on display at the 2011 Ten-Tec Hamfest. Click to enlarge.

The Model 418 100w amp is in the hands of external beta testers, and we are scheduling production start for end of May, beginning of July. The software is basically done, but of course, we are still tweaking it by adding a bit more protection and user features. We will have those added / tested / approved in the coming week or two. Beta tester input is extremely positive and they are sure we have a big hit on our hands because of everything that this amp provides is phenomenal.

John plans to give me another update just prior to the Dayton Hamvention.

Ten-Tec: Updated info on the Model 539 QRP transceiver and the Model 418 Amplifier

Ten-Tec's John Henry behind prototype of the Ten-Tec Model 539 QRP Transceiver at the 2011 Ten-Tec Hamfest

Several of you have written in asking me about updates on the status of the Model 539 and Model 418 from Ten-Tec. I asked Ten-Tec Software Engineer, John Henry, for an update. Here is his response:

Hi Tom,

We have ordered and are building what we think will be representative of the final production boards for the 539. We may have one more board spin for one or two boards, but hardware wise I believe we are in pretty good shape.
Software, we are still in development of the firmware for the rig, but we are making real good progress.
Timing, not sure yet, but it is in process along with several other new items.

Regarding the 418, we have two more tweaks to the firmware to make. The hardware is finished, and being released to production. We are ordering parts, and plan to be at least taking orders around mid May, if not shipping by then. We passed the testing for FCC, and are in the process of getting the paperwork through FCC. We had a lot of positive input on the 418 at Orlando Hamcation, so we expect the 418 to be a hit with QRPers that also want to use their QRP rig to go 100watts occasionally.

Thanks for the interest,

Thoughts on the Elecraft KX1 and comparing with the Ten-Tec HB1B

My Elecraft KX1

I’ve been meaning to write a post about my Elecraft KX1, because, of all of the rigs I own, it’s the most-often-used, thus the clear favorite in my stable. But:  this morning, I read John Harper’s (AE5X) excellent assessment of the Elecraft KX1 vs. the Ten-Tec HB1B. He provides some significant numbers to consider when comparing these two lightweight CW-only QRP rigs, and makes a great case for elevating the newcomer HB1B over the KX1–at least, for some readers.

I’ve had my Elecraft KX1 for over three years, and, in all honesty, absolutely love it.  But, let’s face it: if I didn’t have one, if I had never touched nor used one, I would be seriously tempted by the HB1B–for its price, for the fact that Ten-Tec sells it (I’m a long-time Sevierville radio fan), and for the fact that it’s not a kit. Oh, yeah:  and because it works very well.

However, having used the KX1 for so long, I know that the HB1B (at least in its current state) could not replace my KX1. But before I explain why, I would like to make some strong points in favor of the HB1B.

YouKits HB1B Four Band QRP Transceiver
The Ten-Tec HB1B

The Ten-Tec HB1B

At least on paper, the HB1B has better filtering, a better display, and generally speaking, more bells and whistles than the KX1. Best of all, it comes fully assembled.

Why is this last point an advantage–? For a number of talented QRPers reading this, building the kit is the best part!  I know, I get it…And to tell the truth, I want to be like you kit-builders out there!  But I am only now getting into kit building, and building my confidence in kit-building.  I’m sure there are many others out there like me. For these QRPers, please note: the KX1 is not a beginner’s kit. I did not build mine. When I bought my KX1, I purchased it from a KX1 beta tester and professional engineer. The soldering and overall build quality are top-shelf.

Moreover, no matter how great an Elecraft radio is, it’s only as good as the person who built it. If the builder does sloppy work, your rig’s longevity and performance may suffer. Since you’ll likely be taking the KX1 with you everywhere, and it’ll experience a fair amount of movement (aka, hard knocks), this is especially important.

If, like me, you’re not prepared to take on building a KX1, fear not!–you should simply purchase from someone who knows their stuff: Elecraft can suggest some builders (including the amazing Don Wilhelm, W3FPR) or you can simply purchased a used KX1 fully-assembled. Or, you can simply purchase the fully-assembled HB1B.

So, why do I not find the HB1B enticing?

Yes, the Ten-Tec HB1B comes ready to roll. Still, could it replace my KX1?  I don’t think so. Two HB1B deal-breakers for me:

  1. As AE5X mentions, there is no internal antenna tuner option.
  2. There is no way (at least, on this version) to attach paddles directly to the rig.

Portability + Simplicity = QRP Fun

Why are these features so important? Well, my KX1 has an ATU, four bands, and an attachable paddle. One of my favorite things to do with my KX1 is, while traveling, to pull it out of its Pelican case, toss a 28′ wire into a tree, and lay a ground wire. As I stand there, I can hold the KX1, tune the antenna (easily 40M and up, with the internal ATU) and work stations my favorite way: while standing up.  I can also (if I like) sit for a moment, then jump up again, walk a bit, and generally move freely–just not possible with sit-on-a-table units.

My Elecraft KX1 fits nicely inside the Pelican 1060 case. There's even room to fit an external Whiterock paddle.

Additionally, everything I need fits inside a Pelican 1060 case. The Kx1 itself is an all-in-one unit–nothing external to attach, unless I want to. Oh, and I can also operate the KX1 with gloves on in below-zero conditions.

Anywhere QRP

Why would I want to operate standing up? Fact is, where I go, I’m only operating for thirty minutes or so, and in places where there’s no convenient spot to settle down or get too comfortable. In many cases, I’m operating on a whim–when I can grab a few minutes in a busy itinerary, or on a hike or day trip. With the Kx1, this is remarkably easy to do. I can have my KX1 on the air in four minutes or less, in most cases–and that includes the time to hang a wire–!  Packing up is also quick. This kind of operation feels as free as flying a kite.  Spontaneity at its best.

Part of that functional synergy comes from the fact that there are no additional components to hook up (i.e., no external tuner, external paddles). With the HB1B, I would be forced to either build a set-up, so that I could stand and hold the transceiver, tuner and paddles, or I’d have to…sit down.

Wayne’s inspiration for the KX1

Thinking back to a Dayton Hamvention several years ago, I seemed to remember that Wayne Burdick, N6KR (co-founder of Elecraft) was inspired by just this sort of off-the-cuff operation. To confirm this, I asked Wayne, just this morning, if I was on track with that. He offered this very thorough (and insightful) response:

I had been designing portable QRP gear for my own use for many years, including the “Safari 4″ (documented in three issues of QEX magazine in 1990). The Safari-4 was 3x5x7”, but it was fully self-contained, including an attached keyer paddle, internal 1-Ahr gel cell and manual antenna tuner, wattmeter, SWR bridge, and 4-band coverage. But it was too large for backpacking. Later, I designed some far smaller rigs with very good performance for NorCal and Wilderness Radio, including the SST, NC40A, and Sierra.

Then I started Elecraft with Eric, WA6HHQ. After we had success with the K2 and K1, I pitched the idea of a smaller version of the Safari-4 to Eric.

There were two inspirations for this. Back in the 70s, W7ZOI (Wes) created his “Mountaineer”, which was a crystal-controlled 40-m QRP rig that was very simple to use, very small, and self-contained, in that battery and paddles were built in. But it had no VFO, no ATU, a single band, and no frills. Taking what we’d learned in the K2 and K1 designs, I figured we could pack a great radio into this same size using updated technology. It had to cover at least 40 and 20 meters, and the idea was to use latching relays to minimize current drain and simplify band switching. We also used a DDS chip for the VFO–not quite as pure as crystal control, but just as stable, and totally adequate for a portable radio.

The other inspiration was my idea for an attached, but easily removable and mechanically reversible, keyer paddle. This became the KXPD1. I literally woke up at 5 AM with this idea. I realized immediately that this was the enabling technology for a hand-held radio, and I got busy with the design.

Having spent time camping and hiking with other rigs, I also knew that the ATU had to be built in. This allows the use of ad-hoc, wire-in-a-tree antennas, which is the secret to quick setup. It was a challenge creating an ATU that’s just 1 x 5″, but it worked. We spent weeks refining the rig and the ATU to work with typical field antennas, adjusting the component values to cover 40 and 20 meters. When we added the 30-m module, we found that it handled this well, too.

Most of my KX1 operation involves not even sitting down. I literally stop on the trail at a scenic overlook, pull the daypack around and extract the rig, toss a wire into one or two trees, and I’m on the air. I love this kind of operation. I’ve gone so far as to operate while sitting in a tree (an “inverted vertical”–a dangling wire–works amazingly well). Having to futz with add-ons can be fun, too, but it discourages “instant” operation. I like to quote Ade Weiss, W0RSP,  from his book The Joy of QRP: “If there is a place, and you can get to it, you must operate from there.”

You can’t overlook performance and features, either. The KX1 is stable in all operating environments and draws only about 35 mA. It includes a variable-passband crystal filter that can be widened out to copy AM and SSB signals, and can even do cross-mode (transmitting in CW while receiving LSB or USB). It has a full set of frequency memories and CW message buffers. For blind hams (or when you’re too tired to keep your eyes open), the KX1 has a 100% Morse-audio-feedback system. I tested this firmware with my eyes closed, and the result was very well-received by the blind amateur community.

Thanks for the history, and your inspiration, Wayne. Love it!

The KX1's Tuning, RF, AF and Filter knobs are very easy to operate--even with gloves on!

When you hold and operate the KX1, this legacy is all too apparent. Thoroughly thought through–down to a built-in LED lamp for logging–and, without a doubt, the original inspiration for several radios that followed: the HB1B, the MFJ 92XX series, and the Hendricks PFR3.

My guess is that the next generation of HB1B will have some of these clever features.

In the meantime, if you’re in the market for an inexpensive, CW-only, very portable QRP rig, and you’ve no plans to embark upon impromptu operation, the HB1B could be your rig. Based on my experience with Ten-Tec, if they sell it, they’ll give you excellent customer service. That is the beauty of these two choices, both Elecraft and Ten-Tec are excellent companies to do business with.

I only think I’d give up my KX1 for…the new KX3, and I’m not even convinced I’d do that, yet. The KX1 has become my little travel buddy. Time will tell, though. Check back here–if I’m wooed by another QRP radio, I may eat my words.

By the way, as I mentioned at the beginning of this post, the inspiration to finally write down my thoughts on the KX1 came from John Harper (AE5X) who has an excellent QRP blog that you should certainly add to your favorites!  And thanks, again, to Wayne, both for his response, and for his original ideas that continue to make QRP so liberating.

Ten-Tec announces availability of three new products

The new Ten-Tec RX-366 adds a contest-grade sub-receiver to the original Orion or Orion II (Photo: Ten-Tec)

Last year, Ten-Tec announced several new products at the 2011 Ten-Tec Hamfest. Three of these products are now available for purchase (see full announcement and photos below):

For the Orion/Orion II owner who loves DX and contesting, the new Model RX366 High Performance ASR Sub-Receiver ($639 US) will be a serious upgrade to the existing sub-receiver (read John Henry’s description below). The Model 717 ($119 US) will allow you to connect new dynamic microphones to older rigs that required a higher microphone input level such as from an electric mic element. While the Model 318 Amplifier Key Interface ($89 US) may not appeal to the QRPer, it certainly will be of benefit to folks who want to hook up an old linear amplifier to one of TT’s newer rigs.

Please find the full product announcements below with added photos:

(Source: Ten-Tec)

Back at the 12th annual Hamfest, TenTec announced several new products that we would have in production, for sale, late 2011 and early 2012.

Today, I am pleased to announce that we have met our goals on the following:

Model RX366 High Performance ASR Sub-Receiver for the Orion Model 565 and Orion II Model 566. This is a new contest grade second receiver for the 565 and 566 Orion series of transceivers. This new second receiver uses ASR (Advanced Signal Reception) technology like what is already a proven winner in the Eagle to provide a great enhancement to the rig. The RX366, requires the new V3 Orion 565 and Orion II 566 firmware. With V3 installed and the RX366 installed, the Orion(s) now have vastly superior performance to the original sub-receiver in terms of immunity to interference from adjacent strong signals and immunity to overloading from very strong signals present on the band. Your Orion 565 and Orion II 566 have never worked so well before.
Price = $639.00
(1 2.4kHz filter included)

Ten-Tec Model 717 Microphone Equalizer / Audio Interface (Photo: Ten-Tec)

Model 717 – Microphone Equalizer / Audio Interface. The 717 will allow you to connect new dynamic microphones, such as the Regal Model 707 Desk Microphone to older rigs that required a higher microphone input level such as from an electric mic element.
The unit works with Icom, Yaesu, Kenwood as well as older Ten-Tec transceivers using 4 or 8 pin circular microphone connectors. Now you can use the rally cool Regal Model 707 Microphone with an older Ten-Tec rig such as an OMNI-VI. You can tweak the actions of hi and low frequencies to meet your needs.
Price = $119.00

Ten-Tec Model 318 Amplifier Key Interface (Photo: Ten-Tec)

Model 318 Amplifier Key Interface. The 318 will allow you to dial in a delay when you connect older linear amplifiers to your transceiver. This will be useful if the amplifier is not designed for full break-in. An excellent seamless add-on for Eagle users who want to adjust the transmitted output to work with older amplifiers. Adaptable to almost any transceiver.
Price = $89.00

Note: V3 firmware for the 565 and 566 is in the process of getting bundled up and placed on the internet. Estimate for V3 release and posting is by 5pm EST Tuesday.

Best Regards,
John Henry
TenTec Inc.

Update: Ten-Tec should take orders for the Model 539 QRP transceiver at Dayton

Prototype of the Ten-Tec Model 539 QRP transceiver at the Ten-Tec 2011 Hamfest.

I just received the following from Ten-Tec:

We are progressing along per our schedule for having the 539 ready for orders at Dayton of 2012.

I have a hunch the Ten-Tec booth will be busy at the Hamvention this year.