18 May
2020
18 May
'20
3:45 p.m.
Rob -
It has been 35+ years since I worked for an Apple dealer, during the Macintosh
announcement (and Apple sales, service training). I no longer have any of those
documents.
The Apple Community is extensive, and a quick Google search turned up many comments about
Flyback, Damping Diode, & CRT replacements for early Macintosh.
One individual acquired a replacement Flyback from Spain ($16 USD) for his Apple.
Suggest you research those Apple owners for Mac specifications ? possible replacement.
https://macgui.com/news/article.php?t=446
greg
On May 18, 2020, at 4:54 PM, Rob Jarratt
<robert.jarratt at ntlworld.com> wrote:
Thanks for this. I am having trouble finding any information on them, such
as datasheets. Any ideas where to find this kind of information?
Regards
Rob
> ==
> From: "Rob Jarratt" <robert.jarratt at ntlworld.com>
> To: "General Discussion: On-Topic and Off-Topic Posts"
> Subject: Replacing the Flyback Transformer From My VAXmate
>
> I am about as certain as I can be that the flyback transformer from my
> VAXmate monitor board has failed. I know this is probably impossible, but I am
> wondering if there is a way to find a more modern equivalent? How
> standardised are these things? I do see a lot that appear to have the same
> circular arrangement of the pins.
>
> The VAXmate one is a Tai-Ho TH-1802B and according the Technical
> Description has a primary voltage of +28V and produces auxiliary voltages as
> follows:
>
> +13.1kV @85uA max
> +950V @200uA
> +45V @75mA max
> -100V @1.2mA
>
> Regards
> Rob