21 Apr
2009
21 Apr
'09
1 a.m.
On 20 Apr 2009 at 17:09, Eric J Korpela wrote:
I've used the variac technique to reform
capacitors, but thus far
haven't done this on a machine that contains a CRT because I don't
know what the reduced voltage is going to do to the CRT. The next
machine to power up on my list is a Compucolor II. Dare I power it at
15 volts for a few days before starting the slow ramp up to 115? Or
do I need to go in and detach the CRT circuitry before I try anything
like that.?
While it may do some good to reform oil capacitors, has anyone had
any solid information indicating that a slow ramp-up on more-or-less
modern electrolytics does much good? Do marginal caps treated this
way continue to give reliable service, or is one just putting off the
inevitable?
I'm more of the "duck and plug" mindset myself.
Chuck