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 Anyone Ever Seen One Of These
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 Return to top of page · Post #: 1 · Written at 1:36:05 PM on 13 September 2015.
Pa Man's Gravatar
 Pa Man
 Location: Golden Grove, SA
 Member since 10 April 2015
 Member #: 1726
 Postcount: 149

I picked up a Philips PA Amp 987 today with matching Column Speakers and Mics and
I have NEVER seen a Dual Voltage Philips Amp before (neither has my Father)

Philips Amplifier
Philips Amplifier
Philips Amplifier


As you can see the vibrator is behind the power transformer.
I was told it came out of a section of Holden's back in the day.
Would Love a circuit for it as its before the time they were putting circuits under the bottom.

Josh


 
 Return to top of page · Post #: 2 · Written at 8:05:13 PM on 13 September 2015.
Brad's avatar
 Brad
 Administrator
 Location: Naremburn, NSW
 Member since 15 November 2005
 Member #: 1
 Postcount: 7301

I have one of those and it has the same grille over the top though it is only the 240V version.


‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
A valve a day keeps the transistor away...

 
 Return to top of page · Post #: 3 · Written at 8:02:59 PM on 14 September 2015.
Simplex's Gravatar
 Simplex
 Location: Bathurst, NSW
 Member since 7 August 2008
 Member #: 336
 Postcount: 391

Must admit I have never seen a vibrator powered P.Amp although not really surprised.

There would have been a lot of country halls, horse race tracks where there was no mains power available.

Quite interesting to see.

Wonder how much output there was when running of the vibrator, about 3 watts ?
 
 Return to top of page · Post #: 4 · Written at 8:34:37 PM on 14 September 2015.
Marcc's avatar
 Marcc
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 5254

The appearance of that big transformer is not that different to the AC only one I have. The 6CM5 was common to many of them & some had six or more of them in PP.

Two alone in PP are capable of around 35 Watts with around 300V on the Plates.
 
 Return to top of page · Post #: 5 · Written at 6:46:12 PM on 15 September 2015.
Pa Man's Gravatar
 Pa Man
 Location: Golden Grove, SA
 Member since 10 April 2015
 Member #: 1726
 Postcount: 149

It is like the later Philips series but with a few differences underneath.
All the Caps are mounted underneath the chassis to
keep them close to the vibrator and not quite as nicely laid out!
 
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