LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
  #5   Report Post  
Old August 17th 08, 02:21 PM posted to rec.radio.amateur.homebrew
external usenet poster
 
First recorded activity by RadioBanter: Jul 2006
Posts: 250
Default Sending power into rig unused for 30 years : Precautions ?

Andrew VK3BFA wrote:
On Aug 16, 4:03 pm, (Dave Platt) wrote:
Now retired I'm trying to become active again.
My TS-520S has not been on for 30 years.
I don't have a variactor ( variable transformer ).


KISS. Wire a 60w light globe in series, turn it on, let it sit for a
few hours. Filaments OFF for this test.

Havent used a variac for this for years - reason - its the switch on
current surge thats going to kill old electros, and the variac has no
current limiting whereas the light bulb does. You will see a brief
"Flash" as the caps charge up, then maybe a dull glow, eventually, no
light at all.

==============================================
Don't understand the above.
When using a variac starting at zero and gradually increasing the
voltage there can't be any appreciable inrush current.

I happen to have a 8 Amperes variac and would always use it to 'fire-up'
a previously retired oldtimer (boat anchor)

I have a rather large junk box with high capacitance value elcos and
recently exposed them all to a 'zero to max working voltage' from an
adjustable HV PSU. I do that once every 3 years.

Frank GM0CSZ / KN6WH


 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Bush sending troops to France!!! Drifter Shortwave 37 November 21st 05 06:13 AM
Bush sending troops to France!!! [email protected] Shortwave 0 November 14th 05 05:50 PM
Attic antenna: precautions for nearby AC wiring? Ben Jackson Antenna 2 June 19th 05 02:10 PM
1930's code sending machine J999w Equipment 0 April 14th 04 07:20 AM


All times are GMT +1. The time now is 02:58 PM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 RadioBanter.
The comments are property of their posters.
 

About Us

"It's about Radio"

 

Copyright © 2017