New lease of life for empty clock case.

[elanman99]

If the sockets on the left are for a pickup, where was the high impedance speaker supposed to connect?

The RH side connector and labeling appear to be the mains supply with my minimal knowledge of German.

To clarify, my mains connection comment was regarding the lack of anchoring for the cable which was why I supposed it was a temporary setup.

Ian

[Lloyd 1985]

If you look closely at the 3rd picture in the first post, you can see the speaker connections with a yellow and green plug in them, just in front of the valve on the right, next to the mains transformer.

Regards,
lloyd

[elanman99]

I can see where the speaker is connected now, but my query was where did Telefunken expect it to be connected?

The diagram shows ground, antenna, mains etc but I dont see the speaker.

(Use of clock case is a brilliant idea though)

Ian

Ian

[deliverance]

Clever work Mick.

[Lloyd 1985]

Originally Posted by elanman99

my query was where did Telefunken expect it to be connected?

Ian

Ian

By the look of it, they expected the speaker to connect there originally, having had a look at a few pictures of other sets on Radiomuseum, you can see the sockets flat on the chassis, but some of the sets on there have a right angle adapter fitted in the sockets. My guess is Telefunken put them there so you couldn't fiddle with them while the set was switched on, as the back cover would have been in place.

Regards,
Lloyd

[Techman]

Originally Posted by elanman99

lack of anchoring for the cable

Difficult to know where to anchor the cable without spoiling the set, but probably via something held in place under the nearest of the two screw heads that can be seen - if they're long enough thread wise.

[rontech]

I was thinking that the set have been adapted in the nazi era for clandestine listening to broadcasts from the UK. Given the spies everwhere situation, if there was no loudspeaker and headphones only were used, the chance of discovery would be reduced considerably.

[Brigham]

Are we agreed that this set originally HAD an internal loudspeaker?

[bluepilot]

Originally Posted by FStephenMasek

Nice, especially since they are both made of the same material. It seems odd that the radio was designed without a speaker.

It was quite common at the time for the speaker to be separate. It was in a separate housing together with the output transformer. There was a socket on the back of the radio so you could connect the primary of the transformer between ht and output valve anode. This meant you had full ht on a bare socket such as you can see in the third photo at the back of the radio.
For example here's a Lumophon which did the same thing:
Lumophon w23
and here's the same Lumophon with an inbuilt speaker:
Lumophon GD23

[rontech]

I have just found this on the radiomuseum site.

Country: Germany

Manufacturer / Brand: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Year: 1930–1932 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 4: REN1004 REN1004 RE134 or RES164 RGN354
Main principle TRF with regeneration; 2 AF stage(s)
Tuned circuits 1 AM circuit(s)
Wave bands Broadcast (MW) and Long Wave.
Details
Power type and voltage Alternating Current supply (AC) / 117; 220 Volt
Loudspeaker - This model requires external speaker(s).
Power out
from Radiomuseum.org Model: 33W - Telefunken Deutschland TFK,
Material Bakelite case
Shape Tablemodel, with any shape - general.
Dimensions (WHD) 380 x 250 x 170 mm / 15 x 9.8 x 6.7 inch

Note the reference to needing external speakers.

[elanman99]

Originally Posted by Lloyd 1985

By the look of it, they expected the speaker to connect there originally, having had a look at a few pictures of other sets on Radiomuseum, you can see the sockets flat on the chassis, but some of the sets on there have a right angle adapter fitted in the sockets. My guess is Telefunken put them there so you couldn't fiddle with them while the set was switched on, as the back cover would have been in place.

Regards,
Lloyd

But why were the speaker connectors not indicated with all the other connections on the diagram I wonder.


Ian

[Neil Purling]

Was it common in Germany to use a non-metallic panel for mounting the valve-holders etc for the lower end models? I suppose that it's a resin-bonded paper laminate like Paxolin in the UK.
Not much in the way of screening though.

[stevehertz]

Great work. Just done a 'shade & light' adjustment to the second photo using Photoshop.

[vinrads]

Thanks Steve, the only Photoshop I know about is the one in town , sorry Mick.

[vinrads]

Originally Posted by Neil Purling

Was it common in Germany to use a non-metallic panel for mounting the valve-holders etc for the lower end models? I suppose that it's a resin-bonded paper laminate like Paxolin in the UK.
Not much in the way of screening though.

It's funny you should mention screening Neil, there is a slight grid hum ,when touching the area around the first valve it increased, as if the paxolin has gone slightly conductive ,I may try a screen , Mick.

[vinrads]

Originally Posted by Brigham

Are we agreed that this set originally HAD an internal loudspeaker?

No it may look like it has a speaker grill but it was made with no internal speaker ,and has a solid front . Mick.

[Beardyman]

I like that a LOT!
Excellent re-purposing job, looks the part & just seems to "fit".
Well done!

[Nickthedentist]

The clock was a Smiths "Troon" if time-only, a "York" if striking, or the Enfield-badged version thereof. Circa 1950. Still very common and work well once serviced. There were only a few pendulum clocks which used Bakelite cases; it was much more common for little electric timepieces and alarm clocks. This surprises me as they can look lovely, and sit nicely in a room with a DAC90A. Maybe people still wanted a living room centrepiece which was made from wood.

There is at least one example of a radio built into a surplus Bakelite clock case in Radio! Radio! I think.

[mark pirate]

Very good idea to repurpose the case as a loudspeaker, I have two of these clocks, I made one good one out of the two, as one had a broken door hinge & smashed glass, but the mechanism was good, the other was mint, but had a worn out mechanism.

The clock was a Smiths "Troon" if time-only, a "York" if striking, or the Enfield-badged version thereof. Circa 1950.

Both mine are the Troon, one has Smiths Enfield on the dial, the other has the army "birdfoot" symbol.

The spares clock was going to have the frowned upon Quartz conversion, but would make a good test speaker for the workshop!


Mark

[vinrads]

This should please Ian "elanman99 " I have fitted a two pin plug ,I found a nice round plug drilled a hole in it and fixed it to the original panel, also made a back , all finished now . very pleased with the result, Mick.