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Philips FA960 Intgrated Lamps
Philips FA960 Intgrated Lamps
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Old 22nd May 2020, 09:27 PM   #1
ET160 is offline ET160
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Default Philips FA960 Intgrated Lamps

I have a problem with my Philips FA960 integrated. The bulbs around the volume control and power switch are out. I replaced them about a year ago, and they were fine for a while, but now I find that the bulbs themselves are fine, but there's no current getting to them. I've checked the wiring, but don't see anything obvious.


Anyone experience anything similar with a Philips or similar Marantz amp of this era ((1980s)?
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Old 22nd May 2020, 10:33 PM   #2
duncan2 is online now duncan2  United Kingdom
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Looks like the 8V bulbs are in series one end to earth and the other end is R807-180ohm outputting =24V.


The circuit diagram I am looking at is a bit hazy but I would check that resistor first .
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Old 23rd May 2020, 11:49 AM   #3
ET160 is offline ET160
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Thanks for the reply! I'll take a look.
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Old Today, 12:11 PM   #4
ET160 is offline ET160
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I am having trouble sourcing the fusible resistor. It's listed as 180 ohms, .5 watt.



How important is the wattage? I see 1 and 2 watt version, but so far the .5 is not readily available
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Old Today, 12:44 PM   #5
duncan2 is online now duncan2  United Kingdom
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They fuse by a set overload so they are rated by wattage it would not be wise to use a higher wattage ,they have a special coating on them (non wire-wound types ).


Ordinary resistors can use higher wattage's but not in this case.
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Old Today, 01:03 PM   #6
ET160 is offline ET160
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Thanks. That's exactly what I needed to know.
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Old Today, 01:19 PM   #7
sevenup2278 is offline sevenup2278  Netherlands
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If you can't find a suitable fusable resistor maybe it is an option to use a normal resistor and a fuse in series instead?
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