Raymond:
Thanx for all the info. When it's working properly, the 7S14 is a sweet
plug-in.
I also wish there were more retired Tektronix engineers who would do repair
and calibration of old Tek equipment. Most of the repair shops in the S.F.
Bay area wanted an arm and a leg to do a few hours work.
Gary
On Dec 4, 2014 9:26 AM, "raymonddf@... [TekScopes]" <
TekScopes@...> wrote:
I wouldn't consider zinc-air batteries a good choice for this purpose.
Zinc-air batteries have a relatively long shelf life unopened but once
opened (activated), they discharge rather quickly, even without load, since
the zinc-air reaction just proceeds.
Several good options are available:
I have replaced the batteries with a DIY photovoltaic solution, using LEDs
(4 sets total). This solution is easy to build and works well.
There's been a lot of traffic on this forum re. the replacement of these
bias batteries, some of it less than a month ago.
Have a look at Ed Breya's very useful article here:
7S14 repair - TekWiki
7S14 repair - TekWiki The
following document was authored by Ed Breya and originally posted on the
TekScopes Yahoo forum. Contents 1 Background 2 Design and construction 3
Findings and recommendations Background
View on w140.com
Preview by Yahoo
Raymond
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[Non-text portions of this message have been removed]
Gary Robert Bosworth