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Philips 22RH590 amplifier
Generously build early transistor amplifier with excellent performance.
2x 10 Watts RMS HiFi amplifier with RIAA phono pre-amp inside.
Many of these amps were tropicalized and can withstand high humidity and high temperatures.
Click here to download the user manual PDF format
Power amp section ^
Click here to download the service manual of the 22RH590 in PDF
Back panel ^
First of all you have to check all electrolytic capacitors in the power supply and the power amp section, then in the rest of the amp, almost all will be out of specs. Also the pre-amp gemanium transistors can make some noise in the signal and may be exchanged.
Set the amplifier to 240 Volt in Europe.
Set to 240V ^
Front & metal top with wood print ^ V
Internationally sold also under several type#, such as A30 ^
Below an advertizing Philips photo for Dutch magazines, featuring two well known satire TV performers in the 1970/80's: Koot & Bie.
The sound of this amp is excellent: typical germanium early transistor amp performance.
© PE1MMK Hans Hilberink, last update: 15-03-2021.