| Title | Value |
|---|---|
| TURNTABLE section | TURNTABLE section |
| Type : | Thorense TD-170 MK II belt-drive |
| Motor : | 16-pole synchron motor |
| Platter : | 3,2kg dynamically balanced aluminium |
| Tonearm : | Thorens TP11 |
| Speed accuracy : | ± 0,07% (EMT 420 ; DIN 45507) |
| RECEIVER section | RECEIVER section |
| Componentry : | 27 transistors |
| 1 IC | |
| Bandwidths : | 145...370Khz (LW) |
| 510...1605Khz (MW) | |
| 5,8...8MHz (KW) | |
| 87,5...104MHz (UKW) | |
| Preset number : | 5 (UKW only) |
| Varicap gangs : | 4 |
| AM sensitivity : | 20µV (LW ; 30% mod ; 6dB) |
| 16µV (MW ; 30% mod ; 6dB) | |
| 4,5µV (KW ; 30% mod ; 6dB) | |
| FM sensitivity : | 1,5µV (UKW ; 40Khz hub ; 26dB) |
| Muting threshold : | 0,8µV |
| Crosstalk : | 45dB (1Khz...40Khz hub) |
| S/N ratio : | 60dB (stereo ; 75Khz hub) |
| Pilot suppression : | 46dB (19Khz) |
| 43dB (38Khz) | |
| AMPLIFIER section | |
| fully-transistorized, DIN 45500 compliant | |
| Type : | "100W music power" |
| Output : | 2x 35W (4 Ohm ; sinus) |
| 2x 50W (4 Ohm ; musik) | |
| Componentry : | 33 transistors |
| 4 ICs | |
| 1 dual IC | |
| 22 diodes | |
| 6 Zener diodes | |
| 3 bridge rectifiers | |
| Inputs : | Phono (3,5mV / 47kOhm) |
| Tape (300mV / 470 kOhm) | |
| Radio (?) (300mV / 470kOhm) | |
| THD : | < 0,2% (100Hz...15Khz, rated power) |
| IMD : | < 0,3% |
| Frequency response : | 15Hz...20Khz (± 1dB) |
| Power bandwidth : | 30Hz...30Khz |
| Damping factor : | 45 |
| S/N ratio : | 60dB (phono ; full power) |
| 70dB (tape ; full power) | |
| Outputs : | 6 loudspeakers (4...16 Ohm) |
| Headphones (4...2000 Ohm) | |
| Tape 1 (140mV / 47kOhm) | |
| Tape 2 (140mV / 47kOhm) | |
| Balance : | +5...-8dB |
| Bass control : | +16...-20dB / 60Hz |
| Treble control : | +16...-15dB / 15Khz |
| Formant setting : | 0...+6dB at 3Khz |
| continuous and according to Fletcher/Munson curve | |
| GENERAL | GENERAL |
| Dimensions : | 72 x 18 x 34cm |
| Weight : | ? |
| Listprice | ? |
Phonocord proton 3055K quadro
1975
A very obscure brand, Phonocord was based in Lahr (Gerätewerk Lahr GmbH, 763 Lahr, Schwarzwald), right where Thorens was between 1966 and 1990.
It is reasonable to see Phonocord operated by Thorens as an attempt at making less expensive and trendy components : those bearing the Thorens name never were too successful...
There were other units sporting the same design and Thorens TD-170 or TD-170mkII turntable : 3020K quadro, 3050K and 3025K quadro.
Advertised within bubbly plaster settings (lower end) or more neutral backs, like here for the higher-end.
The bigger models had the "formant" function that was also found on the contemporary Görler luxurious compacts. In-house speakers were available as well : 3020B, 3050B and 3060B, respectively 2, 3 and 4-way.
The proton 3055K quadro was available in a walnut enclosure (!), eggshell white (as shown here), grey-ish metallic and anthracite.
The whereabouts of the short-lived Phonocord (ad)venture seem to have completely vanished - anybody ?
page online since : july 2010
page updated : july 2010
page type : LGT / KNB
page weight : 226.87 Kb / 0 b
page updated : july 2010
page type : LGT / KNB
page weight : 226.87 Kb / 0 b
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