Michael | July 11, 2020

Carlton | April 12, 2020

Joel | April 3, 2020

Aleksey | March 26, 2020

Scott | March 8, 2020

Avijit | Feb. 10, 2020

DSP radio version 4 - review

For DSP radio version 4

First of all, I would like to thank you for the nice Japanese origami . Overall the product is good . I found few issues and I think it needs few improvements or enhancements .
1) Volume goes to high if I switch it OFF to ON with the on-board switch while Radio is ON . 2) Radio doesn't store last tuned station . 3) There is no option for fine tuning . It should have another rotary encoder (or thru software) to change frequency by 1khz or so . 4) I can hear lot of noise in AM mode while listening local AM radio stations . 5) There should be an IO extension header connector for unused MCU GPIO pins so that, those pins can be utilized for enhancements .
Could you please share high resolution board schematic diagram in pdf / jpg format ? My email ID - ajs.sur@gmail.com . I want to do some enhancements .

Response from microwavemont | Feb. 10, 2020

Thank you for very productive comment!! As pointed out, single rotary encoder is not enough for wide band tuning for a fixed frequency step (5kHz). Also I've noticed 1kHz step is required for some application. Also onboard I/O out is very nice suggestion. By the way, as a premier news, I will make "version 5" in a few months, with SSB reception support. In the next version, I will try to include lots of improvement!! Thank you!!

Celina | Jan. 6, 2020

Very speedy delivery, good documentation, perfect experience

For Piezoelectric micro AIR blower version 2.0

Very speedy delivery, good documentation, a perfect experience.
Would wholeheartedly recommend!
A+++

Response from microwavemont | Feb. 10, 2020

Thank you for reviewing. I hope you will enjoy making something very innovative goods by this very tiny air blower! Thank you again!

Michael | Dec. 18, 2019

Excellent quality!

For Key-paddle for Elec-key

I have received my Morse key. It is of very nice quality, and has very good packaging. I was not expecting the included origami Swan. It was in itself another gift =) Thank you & 73!

Response from microwavemont | Dec. 19, 2019

Thank you so much for the first reviewing of this item! I hope I will be able to have a contact on the sky! I am mostly operating on 20, 30, and 40m band CW! Thank you!!!

Stefan | Oct. 29, 2019

super small factor radio

For DSP radio version 4

I am using it for AM reception mainly and it is very reliable... I can pick stations from all across EU , even if I am living in the mountains at an altitude of 1100 m and the sound quality is great.
I am also a big fan of Japanese culture and people and this product confirmed everything I felt regarding them...
Thanks :)

Response from microwavemont | Oct. 31, 2019

I am so happy to read your satisfaction. Please enjoy AM reception! Thank you so much!

Gregory | Aug. 16, 2019

Adam | Aug. 1, 2019

better than expected very good at shortwave with simple ant

For DSP radio version 4

Thank you for fast shipement , project and soldering job.
I use and will use this receiver mainly in shortwave in the morning for English transmitions. In Poland with antenna it receives NHK Radio Japan serwice in English (5-5.30n UTC) at 9860kHz
BBC at 13660 kHz (6-7 UTC), BBC 9915kHz (5-6 UTC) in English ( signal for cental Africa according to antroid Skywave Shedules)
Voice of America 12070 (7-7.30 UTC)in Hausa to West Africa . Numerous strong Radio China International services , Radio Romania International
I connect mass of SW jack 3.5 socket to window cortuin aluminium bar by wire inside the concret building.
I use it with 2W Selecline audio amplifier with stereo/mono adapter and sound is perfect with ideal sensitivity and selectivity.
As a poer source I use 3.7/5V power bank.
AM is deaf in my location no Warsaw 225kHz no others
In FM it receives many Polish stations with wire antenna just lying along radio (not electricaly connected)

Adam Paliwoda

Response from microwavemont | Aug. 7, 2019

Thank you so much for very detailed report, including shortwave reception report!!! I am so happy to read your satisfaction!! Thank you!

David | June 28, 2019

Peter | June 12, 2019

Jhon | June 11, 2019

Todo muy bien excelente vendedor,producto hermoso.

For DSP radio version 4

Excelente producto todo muy bien funcionamiento perfecto y bien terminado tal cual lo describe el vendedor.

Response from microwavemont | Aug. 7, 2019

Thank you so much! I hope you are enjoying radio!!

Orlando | May 16, 2019

Chris | April 28, 2019

Perfect USB Cape

For 2/4-port USB 2.0 HUB Cape for PocketBeagle

Replaces the complete mess I had for wiring up something comparable. I highly recommend both the 2/4 port capes!

Response from microwavemont | April 28, 2019

Thank you!! I am so happy to see your satisfaction!!!

Forest | April 25, 2019

Dan | April 8, 2019

Jim | March 22, 2019

Fast shipping and a nice project...

For Z80 single board computer version 3.0

Interesting, well-built project with plenty of things to experiment with. Many pins brought out and I hope to look at adding a floating point BASIC at some point.

Response from microwavemont | March 22, 2019

I am very happy to hear your satisfaction with my Z80 board! YES, indeed most of functions (two PIO and one SIO) are not activated in the initial firmware (tinyBASIC), and I will try to explore more some day! Thank you!!!

Park | March 14, 2019

A very satisfying new generation NUTUBE DAC/AMP.

For Nutube headphone amplifier/NEX HR

When I received the product, I was very impressed with the origami of the Korean flag.

The sensitivity of NUTUBE is good, so white noise is mixed to some extent, but it can be ignored enough.

The sound is very warm, powerful and soft. Build quality is also very good.

The seller 's response was also very friendly and impressed.

In short, this product is the best product to experience NUTUBE inexpensively.

Response from microwavemont | March 14, 2019

I am so happy to read your satisfaction for Nutube high resolution USB-DAC amplifier! I hope you are enjoying wonderful Nutube life! Thank you!!

Matthew | March 6, 2019

An excellent and warm little amp

For Nutube headphone amplifier/NEX HR

This is the second NuTube-based headphone amp I've put together, and it's another nice one. Assembly was quick and simple with no surprises. The sound is warm and characteristic of single-ended tube amps, which is exactly what you're after if you buy something like this! USB power and a tiny portable size makes this a great one to bring between home and work.

Two very small criticisms, easily overcome at home:
- There's no documentation of the function of the two trim pots, and as shipped the amp produces some fairly startling noises. My recommendation is before powering up, to turn them fully counter-clockwise (no sound), then slowly turn them up until you start to get artifacts, and back off. Tuning them within that range seems to have some small effect on tonality, but mostly volume.
- The case is a pretty tight fit, and microphonics from the NuTube can be noticeable, for example, when I drop a pen on my desk. The addition of some rubber feet essentially eliminated them except for the sharpest tapping on the desk.

Response from microwavemont | March 14, 2019

Thank you for very detailed review for the product. As is pointed out, I need to make some more detail instruction for kit assembly. Initially I intended to release this item as "full assembled" version and I did not catch up to the situation to sell it as "full kit". I will try to make more detailed instruction sheet later. As for "body-phonic effect of Nutube", it is a characteristic of Nutube (because it is a vacuum tube, where "raw" electron is flying in free space.) But also I will try to fix (total reduction is impossble, but I will try to improve) this issue. I am very happy to see you are enjoying wonderful Nutube! Thank you!!!

Matthew | March 5, 2019

Very nice sounding amplifier and DAC

For Nutube headphone amplifier/NEX HR

I wouldn't describe myself as an audiophile but I do appreciate good sound and this amp sounds nice.
The different components are divided out sensibly within plastic bags and it's all packaged securely. The Union Jack origami was a nice touch :)
Putting it together is simple and it comes with the same PCB diagram and part list print out as you can see in the listing.
Microwavemont was helpful and quick to answer my questions.

Excellent product!

Response from microwavemont | March 14, 2019

Thank you for reviewing! I hope you are enjoying wonderful Nutube life!! Thank you!

Caj | Jan. 25, 2019

Great portable DAC and amp for the office

For Nutube headphone amplifier/NEX type D

I find the audio quality and ease of use excellent, it very easily drives my Sennheiser HD 25-1 cans but they are easy to drive.

The build time was very fast and enjoyable, however I found that the component layout included was missing R7. Since it was the only thing missing there was no great mystery but that should be fixed.

The only issues I have is that the rigid mounting in the steel casing transfers vibrations that causes very noticeable ringing. Considering the sensitivity of the nutubes microphonics I have to consider this a design flaw. The fixes would probably be to have the main PCB mounted onto rubber and a separate PCB for contacts.

Or just put it on something soft on the desk like I do.

All in all excellent product and I highly recommend it.

Response from microwavemont | Jan. 28, 2019

Thank you so much for the first review !
So sorry and thank you for notifying R7, 33kOhm issue. I will fix the paper right now.
As for the microphonic of Nutube, At the side of Nutube it has a double-side adhesive tape and peeling thing tape, Nutube can be fixed on the metal case and it can be improved to some extent (not perfectly, due to its nature..)
Thank you!

Anton | Dec. 30, 2018

Nice board to experiment with 4809

For 4809 Explorer board

Amazing fast shipment, with a nice origami bird inside. I use an old duemilanova arduino board as programmer, with stack from https://github.com/ElTangas/jtag2updi.git. Works very nice.
The reset pin was not enabled in the fuses, that was a bit puzzling. Would be nice if default the reset pin was enabled.
Meanwhile the board is working: uarts, io, and spi (oled display).
Nice board for experienced developers!

Response from microwavemont | Dec. 30, 2018

This board is exactly the one for high ability user like you!!! I am very happy to read your success with duemilanova!!! Great! Thank you!

Sinisa | Dec. 8, 2018

Perfect!

For Sound Toy Box

I requested a customized version for my own use, and Toshiro did everything I asked for and more. The module does exactly what it's suposed to do, the description is very good, the code is open and customizable, and last but not least - very affordable. Thank you, Toshiro!

Response from microwavemont | March 14, 2019

Thank you for reviewing! I hope you are enjoying "sound toy box"!!!

Wolfgang | Nov. 19, 2018

not happy with

For Programmable GPS trained frequency standard

Unit does not work to the specs, no lock to GPS, 10 MHz output unstable in frequency, lots of spourious and broadband noise, have tried different antennas, no luck...

documentation is poor, no idea how to contact seller for return,

unit was suposed to use as 10 MHz reference for ham radio,

Wolfgang Hoeth
OE4WOG
wolfgang.hoeth@aon.at

Response from microwavemont | Nov. 19, 2018

I am so sorry for your inconvenient.
Please contact me through tindie's messaging system. I have a few experience of issue on this board (unstable, etc...) but so far I could guide to make it works for 100% of buyers. It is software setting issue and not hardware issue. Thank you in advance.

Bazzoni | Nov. 19, 2018

Good quality price

For Programmable GPS trained frequency standard

I had some problems at the beginning, I contacted the supplier and with his assistance we have solved, all in all the product for its low cost makes perfectly its function as a programmable reference generator with GPS, from the tests I did the antenna must be placed in the outside where it can receive the largest number of satellites to have a better stability of the signal, lacking documentation for its use I can say this !!

All in all, the product works properly and if you have any problems, the seller will respond in a short time.


I had some problems at the beginning, I contacted the provider and we have solved all the software for its low cost. I can say this !!

The seller will respond in a short time.

Response from microwavemont | Nov. 19, 2018

Thank you for providing wonderful review.
Indeed I have to admit the insufficient documentation regarding details about GPS module setting. This item is almost "software defined signal generator" and I will try to improve documents. Thank you!

Wesley | Oct. 13, 2018

Very good reverbs

For Sound Toy Box version 2

I have this hooked up to a solina strings emulator, the reverbs sound good, with the right eq tweeking, it sounds great! I haven't ran any bass sounds thru this one yet though... I guess I'll run it thru the effects input buss to really dial it in.

Response from microwavemont | Oct. 13, 2018

Thank you so much for report. I am very happy to get your satisfaction!!!

Ingmar | Aug. 10, 2018

Cmn | Aug. 6, 2018

Dsp radio

For DSP radio version 3

Very nice radio, I use it for sw reception, and also for reception of the long wave. Here in europe we still have long wave radio emitters (french german and of course BBC ). It is difficult to find a good long wave receiver.
I am very surprised with the quality and the rapid sending.
Thanks very much
C Veltman

Response from microwavemont | March 14, 2019

Thank you for reviewing! I am very happy to hear you are enjoying Radio!!

Normand | Aug. 3, 2018

dsp

For DSP radio version 3

Hello

very good device, great sensibility , nice screen, all ok,very happy !!!!!!!

very quick invoice

thanks

Response from microwavemont | March 14, 2019

Thank you for review. I hope you are enjoying "Radio life". Thank you!

Henk | Aug. 2, 2018

Robert | July 21, 2018

Excellent product and i ❤️ the origami in the package!!!

For DSP radio chip based LW-MW-SW-FM receiver

Just advertised -- thanks! I'm looking forward to experimenting with the code and making some changes -- want to see if I can store frequencies and select channels.

Response from microwavemont | July 31, 2018

Thank for wonderful report. YES ATmega1284 has a very high potential for application implementation. Please try to make your own wonderful radio!!

Raghavendra | July 16, 2018