Radio Kit - 2 Tube Regenerative Radio

Radio Kit - 2 Tube Regenerative Radio

Radio Kit - 2 Tube Regenerative Radio image 1
Customer image:<br/>"Completed radio all hooked up."
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Radio Kit - 2 Tube Regenerative Radio image 1
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Customer image: "Completed radio all hooked up."
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This radio kit will cover the AM radio band along with the SW radio band. Power for this receiver is 1.5 V DC for the filaments and 45V DC for the plate current. A D cell and five 9V transistor batteries wired in series will work to power this radio. A 2000 ohm headset or an audio amplifier is required. Requires two T-1T4_DF91 tubes (not included).

Item ID:
RoHS Compliant
Product Measurements by Type
Filament Voltage (Uf)1.5 VDC
Headset / Amplifier Resistance2 kΩ
Plate Voltage (Ua)45 VDC
Packaging Information
Packaging Dimensions8.6 in. × 7.8 in. × 3 in.
Weight (Packaging)0.91 lbs.
PDF: InstructionsAll Models
PDF: Layout and SchematicAll Models

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Specifications, Files, and Documents

PDF: Instructions Instructions662.62 KB
PDF: Layout and Schematic Layout and Schematic131.78 KB

Questions and Answers

Click each question to see its answers.
Asked by Anonymous on August 20th, 2016.
Matt H.
August 23rd, 2016
Staff Member
This radio kit will cover the AM radio band along with the SW radio band.
January 24th, 2017
Difficult to tell. I built the kit but there's no way to determine the frequency you are on. I just know that one setting is for the AM band, and the others are for shortwave. I'm sure it covers at least the 5-10mhz portion of the SW bands.
December 17th, 2017
Does it cover the 80 Meter [3.5-4 MHz] and 40 [7.0-7.3 MHz] Meter Ham Bands??
October 9th, 2019
A good way to calibrate this radio would be to find the frequency-time broadcast station WWV - WWVA in Ft. Collins CO, and Hawaii on the lower bands of 2.5, 5, 10 MHz at night, and 15, 20 MHz daytime. It will give you the frequencies to calibrate your radio, plus time of day in Zulu time, plus weather info for mariners and "other related information" according to the announcer at the top and bottom of the hour. WWV announcer id a male voice while WWVA is a female voice There is also CHU in Canada, but I do not have their frequencies at hand. 73's de W4FJF.
Asked by Anonymous on February 21st, 2016.
November 5th, 2016
The tube would light up in a A flash & that would be the The end of the tube :(:(
Asked by Anonymous on January 24th, 2017.
December 16th, 2022
This sounds terrific, but the LM386 requires a new set of voltages. How do you handle that? More voltage regulators?
Asked by Anonymous on August 16th, 2020.
August 19th, 2020
Staff Member
These capacitors also have a code printed but it can be difficult to read. A magnifying glass and good lighting can be really helpful. If you have a multimeter that can accurately read capacitance, you can use the meter to identify the caps as well.

Product Reviews

3.57 out of 5 based on 7 reviews
Erik J. - December 27th, 2022
3 out of 5

The instructions are fairly straightforward. They substituted .047 capacitors for the “503” (.05) capacitors the instructions call for. Not enough hookup wire either. Tube socket pins didn’t line up well with what the diagram showed, which made it so some of the leads of the components needed to be extended.
Had to drill a missing hole in the base, and re-drill some of the other holes so everything would line up.
Purchased the sold separately tubes from AES. One is microphonic, but seems to work OK.
All in all, it’s fun to play with together, just a bit disappointed on the quality VS the price.

ray hinkley - July 27th, 2022
5 out of 5

this is the third kit that I have built .The only problem I have had is winding the coil ,the third time is the charm .I think the tickler coil should be closer to the main coil for better results .It is a great kit ,now how about a two tube amp to compliment it.

Built it for fun - March 28th, 2021
3 out of 5

I wasn't too thrilled with the quality, which other people have said as well. Holes were not drilled properly, the instructions weren't clear, plus the layout for the foil ground plane and the front label were printed undersized. I had to fiddle to get everything together and wired however when I powered it up it immediately worked. Performance is OK and all bands work.

William44 - August 23rd, 2019
4 out of 5

I had no problem with any of the parts or the wooden pieces. My only complaint is the drawings. The coil drawings are way too dark. Drawing the coil as black and the windings as dark grey in the coil winding instructions - I could barely make anything out. Using black and various grey tones for all the drawings is dumb. Just make it simple and make everything black and white. Thank God they included the schematic.

Sterling - July 31st, 2016
5 out of 5

This was a fun kit to build... a couple of notes to really make this kit sing... you need a long wire... like 75 to 100 feet to hear the short wave bands. Also, these are battery tubes... so don't expect that orange glow... you can see it if you strain your eyes in a dark room, but don't expect that glow to double as a night light. I did add a couple of improvements to make tuning easier: I added a Philmore vernier dial to the tuning capacitor to reduce the speed of tuning - these can be very expensive - almost half the cost of the radio, but we'll worth it! I will also be replacing the 50 ohm regen control pot with a 10-turn 100 ohm potentiometer. Also kind of expensive, but it makes tuning a lot easier. Another thing about battery tubes... you don't have to wait for them to warm up... they started working instantly like transistors.

Gedson - December 1st, 2014
1 out of 5

The wooden chassis and front plate are very poor quality. They are no where near rectangular and the cut is extremely rough. As for the construction, it is not too difficult and goes together rather easily. I was disappointed with the sensitivity of the completed product. I built a similar two tube (also 1t4's) radio when I was about 10 or 12 years old that had much better sensitivity. This was to be a nostalgic return to my childhood, but found it quite disappointing.

Max Jakobsen - August 12th, 2014
4 out of 5

Fine kit but there is missing an alligator clip.