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Super 2417VK

Super 2417VK; Telefunken, Helsinki (ID = 220143) Radio Super 2417VK; Telefunken, Helsinki (ID = 220144) Radio
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Super 2417VK; Telefunken, Helsinki (ID = 610743) Radio Super 2417VK; Telefunken, Helsinki (ID = 610744) Radio
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Super 2417VK; Telefunken, Helsinki (ID = 220143) Radio
Telefunken, Helsinki: Super 2417VK [Radio] ID = 220143 640x480
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For model Super 2417VK, Telefunken, Helsinki:
Country:  Finland
Manufacturer / Brand:  Telefunken, Helsinki
Year: 1949 ? Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 6: ECH21 EF22 EF22 EBL21 EM4 AZ1
schematic requested
Main principle Superheterodyne (common)
Tuned circuits 5 AM circuit(s)
Wave bands Broadcast, Long Wave and Short Wave.
Power type and voltage Alternating Current supply (AC) / 110-240 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 18 cm = 7.1 inch
Power out
from Model: Super 2417VK - Telefunken, Helsinki
Material Wooden case
Shape Tablemodel, low profile (big size).
Dimensions (WHD) 530 x 363 x 262 mm / 20.9 x 14.3 x 10.3 inch
Net weight (2.2 lb = 1 kg) 11 kg / 24 lb 3.7 oz (24.229 lb)
Source of data - - Data from my own collection

Model page created by Eero Ukkola. See "Data change" for further contributors.

All listed radios etc. from Telefunken, Helsinki
Here you find 19 models, 18 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.


Forum contributions about this model
Telefunken, Helsinki: Super 2417VK
Threads: 2 | Posts: 2
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telefunken: 2417VK; Super
Dimitri Vorobiev

A couple of nights ago replaced some of the paper caps by Italian-made ICEL capacitors I bought from a local vendor here in Helsinki. Can't stop wondering at how much smaller the capacitors are nowadays than they were 60+ years ago.

Today I received a nice pair of EBL21 from a friendly seller in the Netherlands (one tube will go to the set of spare parts for this radio). Replaced the AF output tube, and got more signs of life. The AF responds nicely, the volume control is apparently good. Judging by the noice coming from the speaker, I will have to thoroughly clean the sockets, though. Other than that, the project seems to be going well.

Hits: 1297     Replies: 0
telefunken: 2417VK; Super
Dimitri Vorobiev

I got this radio from a flea market in Porvoo where it was sitting in a corner with a really attractive price tag. Previous owner wrote on the price tag that the light was working, and there was some noise coming out. Apart from missing tuning and band switching knobs, there were no apparent problems with this radio, so I decided to take it home for a restoration project.

The condition of the internals was surprisingly good. There was very little dust (apparently, it comes from a clean home). Mechanically, the chassis looks intact. There are traces of previous soldering work in the circuits, and I should say that whoever did that work did it well.

First, I took the chassis out of the wooden cabinet, unmounted the dial glass, and cleaned up the white cardboard behind the latter. Also, both dial lapms were blown, and I had to replace them. These common 6.3V E10-based lamps, and I had such in my stash. Paint on the dial glass is fragile and started to detach and fall off in tiny pieces.

The output tube (EBL21) is ruined, but still amplifies. My theory is that a leaking coupling capacitor killed it. The structures inside the tube are physically bent, and there are loose flakes of what seems to be burnt getter inside the bulb. Still, the AF part was somehow working, as I heard hum when touching the grammophone input.

The magic eye was barely visible, apparently very little emission left in it. EM4 are expensive, so I am thinking of replacing it with Soviet 6E5C at some point.

Yesterday I started recapping the radio. I plan to replace the electrolytics as well as paper capacitors first, change the resistor in the B+ filter circuit, then try the radio with NOS output and AF preamp tubes.  When the AF part is OK, it'll be time for the RF part. I also plan to use this forum for my notes on restoration.

Telefunken, Helsinki: Super 2417VK
End of forum contributions about this model