On Sun, Nov 4, 2018, 16:56 Mike Stein wrote:
>
> Neat trick; surprised I'd never heard of it before in my decades of
> trouble-shooting. Then again, at my advanced age and senility I might just
> have forgotten... ;-)
>
> Thanks!
> >
>
Hah! Probably also best to discharge the caps before proceed
- Original Message -
From: "Kyle Owen via cctalk"
To: "General Discussion: On-Topic and Off-Topic Posts"
Sent: Sunday, November 04, 2018 4:48 PM
Subject: Re: How to work out unknown PSU replacement
On Sun, Nov 4, 2018, 16:23 Mike Stein via cctalk
wrote:
>
&
On Sun, Nov 4, 2018, 16:23 Mike Stein via cctalk
wrote:
>
> - Original Message -
> From: "Adrian Graham via cctalk"
> To: "General Discussion: On-Topic and Off-Topic Posts" <
> cctalk@classiccmp.org>
> Sent: Saturday, November 03, 2018 4:59 A
- Original Message -
From: "Adrian Graham via cctalk"
To: "General Discussion: On-Topic and Off-Topic Posts"
Sent: Saturday, November 03, 2018 4:59 AM
Subject: Re: How to work out unknown PSU replacement
...
> Today I’ll break out the ’tin foil covered sponge
> On 3 Nov 2018, at 01:27, Paul Berger via cctalk wrote:
>
> Are you saying that there is a capacitor between input? output? of the 79L05
> and the ground pins of the chips? If so that would seem pretty normal as it
> is usually recommended that you have capacitors to ground on both the inpu
On Sat, Nov 3, 2018 at 1:09 AM Adrian Graham via cctalk
wrote:
>
> Hi folks,
>
> This week I managed to get my paws on a machine that I only ever saw in
> ‘coming up!’ type magazine articles in the mid-80s. It’s made by a UK
> manufacturer of Viewdata set top boxes and home micro modems called T
- Original Message -
From: "Adrian Graham via cctalk"
To: "General Discussion: On-Topic and Off-Topic Posts"
Sent: Friday, November 02, 2018 9:09 PM
Subject: How to work out unknown PSU replacement
Hi folks,
...
Documentation on the Tandata PA is zero, if you s
Are you saying that there is a capacitor between input? output? of the
79L05 and the ground pins of the chips? If so that would seem pretty
normal as it is usually recommended that you have capacitors to ground
on both the input and output side of a 3 terminal regulator. Are the
ground pins o
Hi folks,
This week I managed to get my paws on a machine that I only ever saw in ‘coming
up!’ type magazine articles in the mid-80s. It’s made by a UK manufacturer of
Viewdata set top boxes and home micro modems called Tandata who were a split
from Tangerine, the company that gave us the Micro
