3 Sep
2014
3 Sep
'14
11:57 a.m.
Should be big ones then, and as far as I can see there's no need not to use bipolar
elco's. There shouldn't be much HF involved in a motor drive. So a little series
inductance won't be a problem.
-Rik
-----Oorspronkelijk bericht-----
Van: "Camiel Vanderhoeven" <iamcamiel at gmail.com>
Verzonden: ?3-?9-?2014 20:46
Aan: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at
classiccmp.org>
Onderwerp: Re: TU56 Motor Run Capacitors.
I believe they're plain capacitors; bipolar, non-electrolytic. Those
are a bit more difficult to find.
On Wed, Sep 3, 2014 at 7:47 PM, Rik Bos <hp-fix at xs4all.nl> wrote:
100uF/100V or 63V aren't especially rare.
Those are just normal value's or are they bipolar types?
-Rik
-----Oorspronkelijk bericht-----
Van: "Robert Adamson" <bob at theadamsons.co.uk>
Verzonden: ?3-?9-?2014 16:34
Aan: "cctech at classiccmp.org" <cctech at classiccmp.org>
Onderwerp: TU56 Motor Run Capacitors.
I'm refurbishing a TU56 and of course the tape drive motor capacitors are completely
shot. They're 100uF and only need to be about 60-80V to be quite safe (originals
100uF/55V) but I can only find capacitors rated for 450V which is no big issue except for
their size.
I'm thinking of using motor start capacitors. They're only rated intermittent but
I feel that the derating to around 60V should probably give them a good lifetime. Views?
Bob