Really old Philips amp

[Kosh]

I got this really old old amp from my dad,it was in my granfather home for
almost 30+ years without operation..I replaced it power cord,cleaned it from all the dust and sparyed deoxit,and now the little box work-9 watt per channel,I connected small Mission 760 speakers to it "point line" speaker
terminals,and my IAUDIO U3,and it sound nice! kinda like what we called "warm sound". it so old that all inputs are DIN,and no support for magnetic phono carts,only ceramic and crystal carts..

[OscarEmmy]

Hey, that's pretty cool. Philips always did things in their own style...never followed the herd's styling and, let's face it, invented a lot of the stuff we love to listen to! Nice job cleaning that baby up. I notice it's multi-voltage and all the inputs appear to be DIN, not RCA. I also think it's really good to hang onto things our parents/grandparents used...great memories.

[Rolf Zetterberg]

The 22RR580 amp had a matching tuner,the 22RH690.
Data and service manuals here:
http://www.oudio.nl/22rh690.htm
http://www.oudio.nl/22rh580.htm

[Kosh]

Thanks for the links! it's nice to see that even this little low end box have some
info on the net..

[tri-comp]

WOW, I used to do repairs on these in the mid 70'ies.
Replaced quite a few AD161/162 complementary output transistors.
The tuner had a quirk: No playing stereo when the stereo indicator lamp died.
Oh well, more Philips had this quirk.
Of course the lamps lasted only for a year or so. At least until the factory installed lamp died and was replaced with a long-life type ..and followed by some modification of the power-supply or the lamp supply.
Those were the days. Simple troubleshooting and quick repairs. :thmbsp:

When output transistors died at that time they didn't trash the entire output-board. I remember repairing old Philips car-radios with germanium output AC127/128 or AC187K/188K transistors. When the polarity-switch was reversed and the radio installed they became so hot that the transistor-leads would literally glow and burn-out like a fuse. Now set the polarity-switch correct, jumper the burned leads and voila... good as new!
Try that with silicon!!

rgds,

/tri-comp

[Kosh]

:thmbsp::thmbsp: