Telefunken / AEG - Telefunken AG, Ulm
überarbeitet am 16.11.2010
The Telefunken E 104 is a set only rarely found in Switzerland, it's a very heavy and bulky allwave receiver mainly used for maritime and commercial point-to-point communications constructed in the fifties.
The E 104 has been produced in different variants from the mid-fifties until the sixties,
at has found use in maritime communications and in commercialwurde point-to-point
communications (presse /weather reports), some of the receivers have been exported
to France and Belgium, that's why from time to time, sets with french frontpanel lettering
To the displeasure of many collectors, this receiver is extremely bulky and heavy,
it's 555 x 480 x 590 mm wide and will take a lot of space on the desk in You shack,
as long as Your desk can support the weight of 70 kg; in it's desktop cabinet,
the receiver has a weight of 86 kg - not a one man lift for me anymore...
The top third of the frontpanel is taken by the linear dial; when You turn
the large bandswitch, the dial is rotated up and down. In the high frequency
bands, only the MHz - digits behind tiny windows are exchanged.
The receiver acts as single conversion receiver with an i.f. of 525 kHz in
the low frequency bands below 5,9 MHz, in the high frequency bands, the signal is
converted to a first i.f. of 1,1-2,2 MHz, 1,9-4,1 or 3,9-6,1 MHz (according to the
selected band) and then to a second intermediate frequency of 525 kHz.
There has been an optional FSK demodulator Fs Tg 127 for the reception of radioteletype signals and a BP 102 single sideband demodulator to match the E 104.
The E 104 is a classic collector's set, because of it's large dimensions and it's enormous weight, it probably didn't find it's way into too many amateur radio shacks. It is an excellent AM receiver and performs similarly to the EK-07 or Collins R-390, the dial accuracy has been above average, when it was new, today with PLL synthesized receivers, You get used to a dial resolution of 10 or 100 Hertz..
p.s. I'm still looking around for one (or even two) bezels for the frequency dial missing on my receiver...
© Martin Bösch 4.10.2008