VTVM 1/4" plugs..

[Paul Kraemer]

I had never considered the insulation rating of a phone plug either, until 
the recent posts. So, inquiring mind, out came the Hi-Pot tester. I just 
picked out a Radio Shack 1/4" mono phone plug (because it was on top of the 
drawer) and gave it a test. The tester puts out 1kv and measures leakage to 
2000 Meg ohm. My test indicated the phone plug was same as an open circuit. 
No breakdown to 1kv and no leakage at least none less than 2000 Meg ohm.
The 1/4" phone plug and the familiar mono screw on mic connector were the 
common choice for probe attachment back in the radio tv repair day.
My observations, FWIW. Hope it helps.
Paul K0UYA
----- Original Message ----- 
From: "Keith Harvey" <keith.harvey at PERSONA.CA>
To: <HEATH at LISTS.TEMPE.GOV>
Sent: Tuesday, March 31, 2009 7:30 PM
Subject: VTVM 1/4" plugs..


> If you can find some military surplus headsets (oldies) they usually have 
> a
> PJ-055B plug. These have a much wider insulating band between the tip and 
> the
> sleeve. I have a couple here with a 3mm insulation ring, one of the Heath 
> plugs
> has a 2mm insulation. All my "standard" plugs appear to be about 1mm, 
> depending
> on where they were made. I have even thinner insulation rings in my parts 
> bin for
> guitar cables (OK for audio).
>
> Up to the recent exchanges of notes on these I had never really paid much
> attention to the insulation rings.
>
> Cheers
>
>
> Keith Harvey VA3KRV
> Campbellford, Ontario, Canada
> Grid FN14ci
>
> APRS Weather Station VE3KHV
> CWOP AS831
> Canwarn Grid C08
> www.findu.com/cgi-bin/wxpage.cgi?call=VE3KHV
>
>
> -----------------------------------------------------------
> Products bought, sold or traded here is the responsibility of the
> parties involved.  This list and the City of Tempe are not responsible
> for losses or misrepresentations of any kind.  Buyer beware!
>
> -----------------------------------------------------------
> This list is a public service of the City of Tempe, Arizona
> -----------------------------------------------------------
>
> Subscription control - http://www.tempe.gov/lists/control.aspx?list=HEATH
> To post - HEATH at LISTS.TEMPE.GOV
> Archives - http://lists.tempe.gov/archives/HEATH.html 

-----------------------------------------------------------
Products bought, sold or traded here is the responsibility of the
parties involved.  This list and the City of Tempe are not responsible
for losses or misrepresentations of any kind.  Buyer beware!

-----------------------------------------------------------
This list is a public service of the City of Tempe, Arizona
-----------------------------------------------------------

Subscription control - http://www.tempe.gov/lists/control.aspx?list=HEATH
To post - HEATH at LISTS.TEMPE.GOV
Archives - http://lists.tempe.gov/archives/HEATH.html