EEVBlog #851 - Mailbag

[retrolefty]

Looking forward to the Sony disc player tear down. I  owned one at one time and it was a great unit at the time, very solid even heavy construction. I believe these are even collectible and carry a premium on E-bay.

[Godzil]

I'm interested in more information about the Japanese thing, google is not my friend and Sangyo + Win View does not give any thing interesting.

Does any of you (or the one who sent it to dave) have more information about that device?


By the way, the chip on the Fluke network screen is made by PVI and not OPVI, PVI who is Prime View International, and become later... E-Ink!
Cf: http://www.eink.com/press_releases/pvi_eink_reach_agmt_060109.html

[coppice]

Yellowing looks like bar smoke to me. I've seen many examples of exposed pcbs in service over years from the security industry and you often get those "Drifts" of grunge on the surface especially when there are heated(relative) components.

In most developed countries people are starting to forget how so many things, like furnishings, used to be badly discoloured by smokers. Japan still has a great many smokers, and discolouration is still a big issue there.

[AF6LJ]

Good Video The condition of the SONY Disc player is amazing.

[Godzil]

By the way it looks more like a shelf CD player than a discman

[Len]

By the way it looks more like a shelf CD player than a discman

The D-50 was a portable CD player, however the battery pack was a separate accessory. I don't know if Discman was an official name or just a nickname at that time - later models had "Discman" printed on them.

[Zom-B]

The Tektronics code is:

• Up/down: binary (LSB first) '00101010' = ASCII 'T'
• Thickness: '00000011' = ASCII '?'
• Spacing: (maybe I'm over-thinking things) '000 111 00' = '8' (not quite 'K' as I hoped)?