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

Thread Closed
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

show us your dim light bulb tester
#1

what do you guys use?

what have you figured out that has made it more useful?

i watched a vid last night of a guy who kept his hooked up to a powered on radio ,, it went dim but over the course of many minutes of time, the side mounted volt and ammeter would react to things happening in the set and the volts would drop and current would spike,  and the bulb would quickly let out moments of glow.  to me this is something you would never be able to easily detect without a dim bulb tester.


i am considering making one,, a guy on youtube also uses 4 bulbs in parallel  (2 40w & 2 60w)  on the line hot side with a side amp and volt meter.

this got me to thinking about doing this....
line power to one side of a Pot,,, then the wiper out to the bulb, then the other side of the bulb to the hot leg input to the radio,, then the N leg back around unbroken.

i also found it interesting that one vid shows how you can use a dim bulb tester to verify your radio is not AC wired backwards.  this is something we could all do visually but........... still a nice quick visual aid.

so what do you guys do,, what do you have,,, what have you added on to make this even better?

as a side note,, in telecommunications we still use this concept when dealing with the addition of a new battery string.
example, we have a 2000A dc plant floating at -54vdc.  tied to the - & + buss work could be several 2180AH batt strings (about 7901 pounds each) all charged up and proteted by 1200A breaker disconnects on each battery stack.  to add another battery string, a portable charger is used like something along the lines of a 4kw unit.  this new battery is wired to the overhead dc buss and back to the new battery stack 1200A disconnect but the disconnect is OFF.  when the precharger gets my new string close to the -53vdc mark,, put one wire of the lamp on the hot leg of the existing battery bus and the other lamp wire on my new battery string hot bus.  if the lamp comes on,, eventually it will go out and its safe now to flip on the new battery string 1200A disconnect.


Messages In This Thread
show us your dim light bulb tester - by jcassity - 12-20-2018, 01:47 PM
RE: show us your dim light bulb tester - by morzh - 12-20-2018, 03:50 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
HiFi (Chifi) tube amp build - but my own design.
Well, maybe - maybe not  :lol: It's been an interesting project so far! Something so simple, yet so cranky. The 1st one ...TV MAN — 05:12 PM
1949 Motorola 5A9M
Haven't thought of Burgess batteres in a while  https://www.radionostalgia.ca/lib/Images/battery/us/burgess1D.jpgi ...Vlad95 — 03:50 PM
Philco Model 16 wiring question
Measure the voltages first, just in case.morzh — 02:19 PM
1949 Motorola 5A9M
Haven't thought of Burgess batteries in a while Mr. Fixer. Boston Edison always used Burgess in their Bright Star yellow...Paul Philco322 — 02:17 PM
1949 Motorola 5A9M
Thanks Sam. I'll let you know. I can probably scare some up from the local radio club.klondike98 — 02:07 PM
Philco 89 Code 123 Osc Coil
Hello,  I thought I would post my findings on my bad oscillator tickler coil. There were 27 turns on the outer coil b...dconant — 12:38 PM
Philco Model 16 wiring question
Thanks Morzh. So it appears I did wire it incorrectly and I have to switch the wires between pins 2 and 4.bobclausen — 09:24 AM
Philco 46-1209 strange behavior
No, it's not a problem, just during certain condition it could show up. Yes, an internal tube short could do that too. ...morzh — 09:13 AM
HiFi (Chifi) tube amp build - but my own design.
You sound guys are never satisfied. :crazy: :clap:RodB — 09:10 AM
HiFi (Chifi) tube amp build - but my own design.
I got some new ceramic octal tube sockets installed and also tried some different coupling caps.  The results:  The go...TV MAN — 08:42 AM

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

>