Model 1253 9 band regenerative shortwave receiver kit. The classic “first radio kit” is back better than ever! We’ve combined the very same audio output circuit of TEN-TEC transceivers with a modern FET design for classic regenerative SWL receiving plus one-button electronic band switching.
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Posted by KC9WP on 4th Apr 2014
the 1253 is a well thought out product, but some of the assembly steps seemed out of order, the power indicator LED could have been designed w/ a mounting clip or bracket, so that glue or "wedging in styrofoamoor cardboard" needn't be done. Also, to further update this kit, a sub-miniature plug should be substituted, instead of a phono plug. I would rather use a set of "ear buds" or lightweight headphones, especially using this receiver as a mobile device. Having to buy an adaptor only adds to the expense of owning this kit. And last, I thought the circuit board layout could be changed to allow the regenerative circuit trimmer (vertical, instead of flat on the board) to be positioned close to a side of the case with an access hole to allow further tuning, once assembly has been completed.
All in all, though, I enjoyed building this kit. I miss Heathkit, and this kit is the closest I've seen in design and quality.
All in all, though, I thoroughly enjoyed putting this kit
Posted by Unknown on 25th Jan 2014
I really enjoyed assembling this while having a chance to learn and practice good soldering skills. The chassis is sturdy and well-designed. I had no problem assembling the hardware and components. I could read the inductor color codes fine, and I didn't have problems with the band switching like others commented on. But in the end...no shortwave or ham signals. I can only pick up two local AM stations. I triple-checked my work and soldering points over and over again. I have a good antenna and ground connection. Four pots were sticky and produced a lot of static, so I asked for replacements and they were promptly delivered. But after re-installing these, it still functions the same. Now I wonder if there's a faulty transistor or IC chip. Instead of enjoying shortwave listening, I will spend more time troubleshooting this project. I also wanted to pass along a good tip: instead of using the large battery holder with 8 "C" cells, use an Engergizer A23 12V battery and hook the red/black wires to either end (secure with electrical tape). It's only an inch long and fits neatly inside the case.
Posted by Jim, KC9OGJ on 23rd Jan 2014
This is a nice kit to build if you want the nostalgia of an old time radio.What sets this regen radio apart from other kits is that it's a Complete kit...nothing else to buy.I think the construction manual has improved compared to some of the e-ham reviews. Ya just have to pay attention. There are a couple of typos but if you look at the parts list you can figure it out easy enough. If you like playing with knobs this is the radio for you! There is a learning curve as far as tuning in stations. Looking at a couple of you tubes helped me with this.
Posted by C Grooms on 14th Jan 2014
This was a pretty fun build overall. It seems I too had issues with the labeling of the resistors and inductors. Getting resistor values with a DMM was easy enough, but had to wing it when it came time to install the inductors. I ended up having to solder a 100uf capacitor across the diode on the bandswitch board to ensure proper operation without key bounce. I installed the optional inductor for high sensitivity to achieve regeneration on all bands. The R6 variable resistor for calibrating regen on this kit is kind of a joke. I would really like to see Ten-Tec move it to the back panel of the unit in a future revision for on-the-fly adjustments. I will likely end up performing this mod myself. No problems with the instruction manual with my unit nor was there any errata. I'd be more than willing to build another one if TT would individually mark the inductors as most people don't have an easy way of measuring inductance. Anyone who knows how to handle an iron and can follow instructions should come out ok on this kit.
Posted by Art Prior on 27th Dec 2013
When I opened the box I found a well packed, complete kit. I was impressed with the quality of the enclosure, and all parts were there. I think the instructions are a little tough for a beginner(especially the bandswitching board)but if you take your time they are do-able.I put a piece of speaker cloth in the top and I used stranded wire and had no breakage problems.I put the 1/2" wires in for the sensitivity control and I think I will hook it up with a toggle switch. I just finished it today and it fired right up---good job TenTec. I plan o have a lot of fun with this rig.
Posted by Bob Emerson on 8th Dec 2013
This was a tougher kit to build. I had to reread parts of the instructions a few time to get what they meant. I also made some physical modifications to get the band select board to fit properly. Worked fine the first time I tried it though.
Posted by Unknown on 7th Dec 2013
HIGH QUALITY PARTS. GOOD MANUAL IF YOU FOLLOW DIRECTIONS, BUT COULD USE SOME PHOTOS FOR FURTHER EXPLANATION. TECH SUPPORT IS EXCELLENT IF YOU NEED IT. BUILDING THIS KIT WAS A REWARDING EXPERIENCE.
Posted by Frank on 20th Apr 2013
I have built several "homebrew" regenerative receivers and know a bit about their expected performance as well as their shortcomings. This receiver is by far the best regen I have used. It is stable and does not suffer the normal ills of this type of set. Slapping on the cabinet does not produce instability and no amount of volume produces harmonic feedback. Sensitivity is amazing and under control. Regeneration is smoothe and predictable. Excellent kit assembly instructions as well. Only one who's built their own can appreciate just how well this thing works! Excellent job Ten Tec Engineers!
Posted by Unknown on 7th Apr 2013
This is a great kit, but Ten-Tec needs to do something about the instructions. Please stop making photocopies of photocopies, and clarify which side of the board is which.
Posted by SW Listener on 21st Feb 2013
I have built 2 of these. 1st one I forgot the 100uf capacitor, but still seemed to work alright. 2nd one I missed nothing on the assembly instructions and it worked perfectly. The only issue I had was the R6 adjustment so that I could hear regeneration on each band. I could get the 49 and 40meters band spread all accross the regen button, but the 120, 25 could only get regen when the regen know was turned all the way to the right or left. It did bring in distant stations and I learned a lot by building the kit. It is the sturdiest, most heavy-duty, non-military radio I have ever had. I'm waiting to receive the tentec 1254 model to come in the mail.
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