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Pick of the Camera Reviews

(Click the pictures for reviews & links) 


Yi 2 - Best Budget 4K 

Gitup Git2 (My Pick)

Xiaomi Yi


DR02 D - Best Budget Dual Cam

Yi Ultra 2.7K
Mobius (also works as a Dashcam)
Polaroid Cube+
Drift Ghost X

My favourite USB battery power Pack

This is the excellent USB power pack I use when I travel.

2 x 2.1amp outputs. 8400mAh capacity.

Two digit Led display shows battery level


What SD CARD should I buy?

If you want an SD Card for your camera - these are the ones I use and recommend. 

I'd strongly recommend not to buy any SD cards off ebay - I've heard about too many issues with counterfeit cards - often sold on by unwitting resellers. My inbox regularly gets messages from people who bought a £150 camera then cheaped out and bought a £3 memory card on ebay - Then when it doesn't worth they blame the camera! It doesn't make any sense. Good memory is cheaper than it's ever been - see the links above.

A lot of HD cameras will not work properly with cards larger than 32GB (cards over 32GB are usually SDXC rather than the SDHC standard used by 32GB cards. SDXC cards use the ex-FAT system rather than FAT32 - in short they are a different standard). - so don't just buy the biggest card you can afford - read the specs in the manual to see what it accepts.


RECOMMENDED CARDS (for action cams - see dashcams below)

CLASS 10 UHS-1 CARDS (For HD Cameras)


U3 CARD (For 4K cameras)




The SD card in a dashcam is re-written over, more frequently than in other types of cameras. Some manufacturers void their guarantee if an SD card was used in a dashcam. So, no surprise, there are special High Endurance SD cards made just for's some.


VERY IMPORTANT. These links take you to the product, however Amazon have three different ways of selling. There's Amazon Direct - This means that you are only dealing with Amazon themselves, then there's other sellers that use Amazon's facilities - these show as Fulfilled By Amazon and finally there's Market Place sellers that advertise on Amazon, but operate independently.  I strongly recommend that you only use the first...the Amazon Direct - Sold By Amazon option. Even if it appears that you are paying a couple of £/$ more it is more than likely you are comparing the price of a real item against the price of a fake.

To give you an idea of the extent of the fake goods problem. In a 2016 survey by Apple - 90% of the 'Apple' chargers sold through Amazon - using the other the two methods..which includes the "Fulfilled by Amazon" option -  were found to be counterfeit....90%! 

« Laser Games | Main | Show 'N Tell »

3M Sound Page - Recordable Paper

I've been on the lookout for one of these machines for a while, and while they do occasionally turn up for sale on ebay, I'm so glad I managed to acquire this particular one as the unique accompanying material weaves quite a tale. Hearing non-commercial recordings from the past is always a bit eerie and the subject matter of these is something that is going to stay with me for quite a while.


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Reader Comments (5)

Nice find..TM. Question, does it use slip ring contacts or a concentric transformer to get the signal from the rotating head to the amp? Or.... , go on, open it up for our edification and delight. TM for most despicable leader, better then the current bunch.

April 12, 2018 | Unregistered Commenterjohn kay

You never cease to amaze and educate me. I love all your videos. Keep 'em coming.

April 12, 2018 | Unregistered CommenterWalt

We possibly had something similar to this at my UK school sometime during the late 1970s. A schoolmate used to attend regular speech-therapy lessons held in a dedicated room, and kept talking about this machine that could make 'pieces of paper talk'. I presume it was either something like this, or something using cards with mag-strips.

April 12, 2018 | Unregistered CommenterJQW

An equivalent device I saw being used at a UK primary school in the late-70s used long rectangular cards with a thin horizontal magnetic strip located near the bottom of the card on the reverse side; a bit like a giant magnetic swipe card. The (magnetic) base of the card was fed into one end of a long thin slot on top of the player machine with the printed side facing towards you and the magnetic strip side facing the rear (presumably inserted on the slot's right-hand side if you read left to right), and the card was then automatically moved along the slot whilst the few seconds of audio recorded on the card was played back (if that makes any sense). Guessing the internal mechanism was essentially identical to a reel-to-reel tape recorder (without the reels) but with additional motorised pinch rollers to move the card along the slot like a conveyor belt, plus a sensor to detect when the card's end had been inserted to trigger the motors and the playback mechanism as well as to tell the player when the card had finished playing.

April 17, 2018 | Unregistered CommenterBarney

I made a video about that one too

April 17, 2018 | Registered CommenterTechmoan
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