Travelvision...

as it features fm-stereo, it got the right to be shown here, finally i got me one of those beautyfull 1984 Panasonic Travelvisions:


screen-size of the (b/w) vacuum-tube is like a standard iwatch, check size compared to 1st. gen Watchman:



i‘m busy building a littl vhf-transmitter now

 

That is seriously cool

 

That looks to be tiny. Have a look at this at 4:19 and you can see the earlier version in a Panasonic catalogue and a description of how they were used in TV Sci-Fi series Space 1999

Companies were obsessed with Pocket TVs in the last century with the UKs Clive Sinclair making similar models to both those.
I have a Panasonic 2.2" CRT colour set, but not surprisingly it is far larger than either of those despite not having a battery compartment.
Does your little Panasonic take batteries ? The main thing that caused the Sinclair Flatscreen TV to flop was that it needed very expensive non rechargable lithium batteries made by Polaroid.

 

@autoreverser , Please share your experience with VHF transmitter. I have some vintage pocket TVs and would like to see them working again.

 

in 2005 a well-known electronics magazine here in Italy public this audio transmitter video uhf ... I don't know if you can translate.. but I'll put it here even just to get an idea of how you could realize

 

Or from an old video recorder take advantage of the antenna output ... which broadcast the video audio signal on channel 36

 

i did order me an rf-modulator (from av-signal) and a wideband vhf transmitter. the modulator works exactly like those in a vcr but are much smaller. you can use those things alone if you‘re close enough with the receiver-antenna but it‘s not really an option if you want to walk around with your portable tv. i‘m still waiting for mail from far east and will let you folks know...