Re: Mystery suitcase & unknown chassis
First pic with 4 X PL36 looks to me like a big PA amplifier by Phillips !!.
In Australia they loved their PL36, a 6CM5 in aussie speak. Origionally horizontal output bottle in TV sets, but a pair can fetch around 50 watts RMS, a quad will easily make 100 watts
and I have seen ( still have the chassis) of 6X 6CM5 in PA amp service.
Output transformer I would bet is generic Philips made, as it,s exactly the same "colour/design/build" as I have seen in Australian PA amps.
Joe
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