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with PH508 everytime when I use ARM HOME or ARM AWAY the PH508 always sound for 1-2 second

PH508 setting
- 2 (100%)
PH508 always sound for 1-2 second
- 0 (0%)

Total Members Voted: 2


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Author Topic: PH508 (Power Horn)  (Read 57325 times)

dave w

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Re: PH508 (Power Horn)
« Reply #90 on: April 06, 2011, 05:34:05 PM »

Yeah, but if the new horns are not as loud as the old horns, you can bet X10 is trying to save a penny somewhere.   :'
« Last Edit: April 06, 2011, 07:14:05 PM by dave w »
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Brian H

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Re: PH508 (Power Horn)
« Reply #91 on: April 06, 2011, 06:38:40 PM »

Well I am going to try a rough sound test.
No Sound Meter just compare with a scope. Signal from a computer style microphone with a new and old one.
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Brian H

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Re: PH508 (Power Horn)
« Reply #92 on: April 07, 2011, 11:01:25 AM »

Test of PH508 audio levels.

Altec Lansing ABM-100 Stereo Computer Microphone.

Heathkit IO-4540 Scope.
1X Probe.

Breadboard bias circuit for microphone. Using 2 AA batteries and 2.2K resistors.

Old 02H35 Hi Tone:  .275V PP
              Low Tone: .200V PP
New 09A03 Hi Tone:  .125V PP
                Low Tone: .100V PP
New 10F25 Hi Tone:  .075V PP
                Low Tone: .100V PP

Side note:
The XTB-IIRs signal was seen during triggering.
On the scope trace. Must have been radiating from the PH508s power transformer.
« Last Edit: April 07, 2011, 11:48:07 AM by Brian H »
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vlong

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Re: PH508 (Power Horn)
« Reply #93 on: April 07, 2011, 12:36:23 PM »

Test of PH508 audio levels.

Altec Lansing ABM-100 Stereo Computer Microphone.

Heathkit IO-4540 Scope.
1X Probe.

Breadboard bias circuit for microphone. Using 2 AA batteries and 2.2K resistors.

Old 02H35 Hi Tone:  .275V PP
              Low Tone: .200V PP
New 09A03 Hi Tone:  .125V PP
                Low Tone: .100V PP
New 10F25 Hi Tone:  .075V PP
                Low Tone: .100V PP

Side note:
The XTB-IIRs signal was seen during triggering.
On the scope trace. Must have been radiating from the PH508s power transformer.



looks like the older unit louder then new one not  sure why they keep on changing.
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Brian H

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Re: PH508 (Power Horn)
« Reply #94 on: April 07, 2011, 12:41:20 PM »

Many of the X10 modules are slowly being revised to use more modern components.
Many of the components in the older ones are obsolete or almost impassible to find.
The redesign with different parts changed things.
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