Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12, 2025) x

Thread Closed

pilot lamp burn out
#3

Yes. The thing is, the rectifier is serialized with the pilot lamp.
So, when you turn it off (after it has been warmed up) and then on quickly, the rectifier is still conducting, and you get electrolytic cap inrush going through the pilot lamp. Which can be bad enough to burn it.
The inrush of a discharged cap can be very large. Possibly you could install a NTC thermistor in series, but I am not sure what value it should be, and whether it is really needed. No device should be cycled quickly; we even wait for computers to be off for a few seconds before turning it back on.

Just don't do it.

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.


Messages In This Thread
pilot lamp burn out - by lasurveyor - 06-11-2023, 12:11 PM
RE: pilot lamp burn out - by Paul Philco322 - 06-11-2023, 02:10 PM
RE: pilot lamp burn out - by morzh - 06-11-2023, 02:32 PM
RE: pilot lamp burn out - by Ron Ramirez - 06-11-2023, 02:56 PM
RE: pilot lamp burn out - by lasurveyor - 06-11-2023, 05:39 PM
RE: pilot lamp burn out - by radiorich - 06-11-2023, 09:31 PM
RE: pilot lamp burn out - by morzh - 06-11-2023, 09:43 PM
RE: pilot lamp burn out - by radiorich - 06-12-2023, 08:32 AM
RE: pilot lamp burn out - by morzh - 06-12-2023, 08:37 AM
RE: pilot lamp burn out - by Paul Philco322 - 06-12-2023, 10:30 AM
RE: pilot lamp burn out - by morzh - 06-12-2023, 11:11 AM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
54C Complete Teardown/Rebuild
Hello Roy, here is this one sincerely Richardradiorich — 12:45 AM
54C Complete Teardown/Rebuild
Richard, Had grabbed it already but thank you just the same.  I find myself wanting to find some way to block out the...glyphmon — 12:03 AM
54C Complete Teardown/Rebuild
Hello roy, here is a link to the schematic . Sincerely Richardradiorich — 11:54 PM
54C Complete Teardown/Rebuild
Richard, The Silvertone 2014 also is a transformerless set, so I am incorporating a 1:1 600 ohm audio isolation transfo...glyphmon — 11:37 PM
Preliminary work on wife's Silvertone 2014
Did an alignment today which was interesting.  IF alignment went great, almost all was already spot-on.  Adjusting on th...glyphmon — 11:35 PM
54C Complete Teardown/Rebuild
The main problem with adding a Bluetooth input is that this set lacks a traditional power transformer to isolate it from...radiorich — 11:19 PM
54C Cabinet Refinish
I started stripping this cabinet before it got super chilly out because I knew I wasn't going to be able to work on ...glyphmon — 11:18 PM
54C Complete Teardown/Rebuild
While I'm waiting to wrap up the final steps on my wife's Silvertone 2014, I started disassembly on the next project.  O...glyphmon — 11:07 PM
Preliminary work on wife's Silvertone 2014
Hello roy, that great news glad it worked out for you !! Sincerely Richardradiorich — 10:50 PM
Preliminary work on wife's Silvertone 2014
Safety caps arrived today.  Soldered one in and had a successful first power-up.  No magic smoke escaped and it tunes in...glyphmon — 09:53 PM

[-]
Who's Online
There are currently no members online.

>