With tube gear, one fairly good way to reform the caps is either pull the tubes (label where they came from) or disconnect the filament supply, and then apply B+. You do need to check the schematic to make sure you don't overvoltage caps that would see an increased voltage w/o plate current. Also, cathode bypass caps may never see the reforming voltage.
For solid state equipment, the light bulb thing will limit collateral damage on simple rectifier-filter analog supplies. Switchers are more problematic. -John ============= > And vacuum tube equipment using indirectly-heated cathodes: > http://www.cpii.com/docs/related/23/Basic%20Tube%20Design.pdf > > "Operating techniques that are proper for filamentary tubes are not > necessarily > correct for tubes with indirectly heated cathode emitters. In > particular, the opera- > tion of cathode types at reduced heater voltage can be destructive to > the tube." > > Leigh. > > Mark Sims wrote: >> Be very careful powering up modern equipment on variacs and with light >> bulbs in series, etc. You go through areas where the bias voltages, etc >> are in the right place to cause serious damage. Switching supplies can >> be particularly entertaining... >> >> ---------------------------------------- >> >> >> > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
