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Nickthedentist · 18th Oct 2020, 9:22 pm

Hello,

A friend has bought a late-1960s Philicorda organ, like this one here: http://www.peel.dk/Philips/Philicorda_GM-751.html

All solid-state (look at all those Lockfits!), with two speakers but driven by a single push-pull amp as far as I can work out. (There are similar-looking models with stereo amps and/or full of valves).

Full model number is 13GM751/15T.

He's done a great job of getting it working, though switching on the "Reverbeo" feature has no effect; the sound comes through normally with no added reverb. Tapping the reverb unit inside causes its resonance to be heard from the speakers though.

There's a service manual for the 22GM751 here: http://www.peel.dk/Philips/Philicord...ice_manual.pdf but this appears to have a stereo amp, I think, which makes fault finding in this area problematic.

Is the 13- vs. 22- prefix significant?

Anyone got a manual for the 13- version?

All pointers welcome.

Thanks,

Nick.

18th Oct 2020, 9:22 pm	#1
Nickthedentist Dekatron Join Date: Jan 2005 Location: Oxford, UK. Posts: 17,861	Philicorda GM751 organ Hello, A friend has bought a late-1960s Philicorda organ, like this one here: http://www.peel.dk/Philips/Philicorda_GM-751.html All solid-state (look at all those Lockfits!), with two speakers but driven by a single push-pull amp as far as I can work out. (There are similar-looking models with stereo amps and/or full of valves). Full model number is 13GM751/15T. He's done a great job of getting it working, though switching on the "Reverbeo" feature has no effect; the sound comes through normally with no added reverb. Tapping the reverb unit inside causes its resonance to be heard from the speakers though. There's a service manual for the 22GM751 here: http://www.peel.dk/Philips/Philicord...ice_manual.pdf but this appears to have a stereo amp, I think, which makes fault finding in this area problematic. Is the 13- vs. 22- prefix significant? Anyone got a manual for the 13- version? All pointers welcome. Thanks, Nick.