QUAD 2 another view under chassis original

QUAD 2 showing the two black speaker sockets the later ones built for stereo had red and black

This as far as I can ascertain to date is a Marconi CR150 and not one of its variants the rack mounted version is shown.
A double conversion superhet (1.6Mhz/465Khz IF’s) employing 12 valves including a STV280/40 gas shunt regulator.
It requires an external PSU that can deliver 300 volts filtered DC @ 60 ma and 6.3 volts AC @ 3.8 amps.
The frequency coverage is 2 Mhz to 60 Mhz in 5 switched ranges.
Variable bandwidth (switched) 100 Hz, 500 Hz, 1.5 Khz, 5 Khz and 10 Khz via a combination of double xtal 2nd IF filters and audio filters.
Noise Limiter (no user control) clipper type.
Tuning: Concentric tuning shafts, coarse and fine with corresponding drum (frequency) and logging scales
Bandspread: + - 4 Khz either side of the 2nd mixer oscillators center frequency via front panel trimmer control.
Xtal Calibrator: 500Khz.
BFO: Switched in/out via AGC function switch, BFO frequency adjusted internally by knob and miniature scale.
Meter: Monitors all signal valve anode currents by individual switched selection and can also be used as an “S” Meter with the appropriate switch setting.
Antenna inputs: 2 either as balanced or unbalanced by a combination of the socket connections.
Diversity Reception: External AGC control input terminals and Master Osc input socket plus an internal connection to be switched over (by soldering)
Audio Out: line, phones or low impedance speaker.

Lawrence. 15/08/2013

Sony ICF2001

1960 Telefunken MEKY C AM/FM & TV Band 1 split into 2 sub bands.
Telefunken Milano Italy.
Valve line-up:- EABC80, EcCC85, ECH81, EF89, EL84, UY85