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

Zzzzap! Ow!
#1

Well, this just goes to show us all that even a restored radio can still have its dangers in the oddest of spots. Basically, I have decided to get all my US Apex radios going and first off was my buddy reviving my Mantola 27 that croaked on me a few months back. Turned out the original resistor in there had somehow shorted against the chassis and blew the new electrolytic that had been put in. After some work, it performs even better than before and is once again here in my bedroom. Anyways, I was tuning the radio earlier today before work and hand my left hand resting on the opposite side. Now mind you, these use a metal thumb wheel for tuning, so there is no insulation between you and the tuning capacitor! There are three decorative, metal rosettes around the speaker that are also the heads of the speaker mounting studs. I let my left thumb go against one of those while tuning and.. YIKES! I pulled both hands away immediately! Took me a moment to realize what I had done, basically created a circuit between the tuner and speaker! Also reminded me to always be careful with these earlier sets as there is not as much isolation in them as later, transformered sets. There is reason why materials such as wood, bakelite, and plastic were popular for knobs and it wasn't just for looks!

No matter where you go, there you are.


Messages In This Thread
Zzzzap! Ow! - by Jayce - 09-25-2014, 12:31 AM
RE: Zzzzap! Ow! - by Arran - 09-25-2014, 01:01 AM
RE: Zzzzap! Ow! - by Jayce - 09-25-2014, 01:06 AM
RE: Zzzzap! Ow! - by morzh - 09-25-2014, 11:00 AM
RE: Zzzzap! Ow! - by Jayce - 09-25-2014, 01:54 PM
RE: Zzzzap! Ow! - by 462ron - 09-25-2014, 08:29 PM
RE: Zzzzap! Ow! - by morzh - 09-25-2014, 08:38 PM
RE: Zzzzap! Ow! - by Arran - 09-25-2014, 09:38 PM
RE: Zzzzap! Ow! - by Jayce - 09-25-2014, 11:31 PM
RE: Zzzzap! Ow! - by Arran - 09-26-2014, 12:48 AM
RE: Zzzzap! Ow! - by Joe Rossi - 09-27-2014, 11:09 AM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
New Philco Repair Bench
I am sure this is the archive, and not the Chuck's site.morzh — 09:50 PM
Made mistake & did not label connection
It's not like we are good friends with that wire and can tell it from other ptetty identical looking wires. Why'n't you...morzh — 09:49 PM
Made mistake & did not label connection
I'm not sure why that wire wasn't covered in the video. I'm pretty sure the 6A8 won't work until that pin is grounded. Y...RodB — 09:47 PM
Made mistake & did not label connection
You'll have to forgive me, I am not sure what you mean.  Can you explain what you are really saying.  If anyone does not...georgetownjohn — 08:05 PM
Made mistake & did not label connection
Those are details better left to the ones who know. Maybe you disconnected the wrong end of the wire.RodB — 06:22 PM
Made mistake & did not label connection
Maybe this is starting to make some sense in my hard head.  Is this why the wire in question was not in the great Ron Ra...georgetownjohn — 04:34 PM
Made mistake & did not label connection
I was correct with the 6A8 pin connection's, 7 and 8 are connected to ground as well as the tube shield (the broken line...RodB — 02:41 PM
Made mistake & did not label connection
What does the dotted line representing that surrounds the tube in the schematic?georgetownjohn — 02:17 PM
Made mistake & did not label connection
Hello John, I have been there either label got lost or was not labeled ! Sincerely Richardradiorich — 02:15 PM
Made mistake & did not label connection
Sorry, it is a Philco 37-640.  Does that help?--Johngeorgetownjohn — 02:14 PM

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

>