On Jun 30, 3:31 am, Nick n...@desmith.net wrote:
On Jun 30, 8:53 am, JohnK yend...@internode.on.net wrote:
Generally, old electrolytic caps that have just been allowed to sit can be
re-formed and henceforth operate properly.
That's a bit of a sweeping statement. Of the kit I've rebuilt,
On Jun 30, 8:53 am, JohnK yend...@internode.on.net wrote:
Generally, old electrolytic caps that have just been allowed to sit can be
re-formed and henceforth operate properly.
That's a bit of a sweeping statement. Of the kit I've rebuilt, the
electrolytics have typically dried out, and thus
: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] On
Behalf Of JohnK
Sent: donderdag 30 juni 2011 15:01
To: neonixie-l@googlegroups.com
Subject: Re: [neonixie-l] Re: now a full 7179 clock from the same seller,
check out those tubes
Yes it was wasn't it.
However the scenario I had
| I have had more trouble with 'modern' caps. ...
|
| Speaking of modern - a capacitor characteristic often overlooked in
current
| times is the manufacturer specified operating voltage RANGE. Using a
cap
| well below the marked voltage causes it to do two things; lose
capacitance
| and also
Depends on def of 'old-timer' - I am 60 :-)
The caps I mentioned caused probs in mid1990s . The life-vs-volts was
available in the manufacturer data that the Lab used. Often very detailed
spec sheets were sourced from the manufacturers. And capacitor purchases
were in the millions - promoted
From what I have heard that electrolytic capacitor chemical
ingredients are treated like the Holy Grail by the capacitor
manufacturers. The formulations are protected since this can make or
break a manufacturer. The voltage and capacitance of course is
determined by the chemical composition of
The price was $899 yesterday when he listed it...
On Jun 29, 4:04 am, Wayne de Geere III wa...@degeere.com wrote:
Now that seller has got a full old clock with a bunch of cathode poisoned
looking tubes in it for sale:
check out the money shot:http://jpegbay.com/gallery/001031521-.html#9
6x
I'm not so sure about the money shot. The seller probably just
caught the clock ticking over from 11:54:59 to 11:55:00.
Still, that clock doesn't use all the B7971 segments.
On Jun 29, 6:51 am, JohnK yend...@internode.on.net wrote:
Tested is tested.
Bad is still tested.
Result of test is more
