WISI - Detektor-Apparat NR 57 Kristal detector Radio

05
days
21
hours
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minutes
22
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Current bid
€ 2
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Ariel Cabello
Expert
Selected by Ariel Cabello

Holds dual bachelor's degrees in electronics and physics with 20 years in audio engineering.

Estimate  € 150 - € 200
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deBidder 1307 €2

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WISI Detektor-Apparat NR 57 crystal detector with a Bakelite housing, in good physical condition, not tested for functionality, weighing 800 g and measuring 6.5 × 10 × 10 cm.

AI-assisted summary

Description from the seller

Manufacturer: WISI (Wilhelm Sihn Jr. KG)
Model: Detector Apparatus No. 57
Country of origin: Germany
Period: circa 1925-1935
Material housing: Bakelite

Connections
Links and top right: Marked with symbols for antenna and ground.
Sides/Bottom: For connecting a headphone (high impedance, 2000-4000 Ohm).

The object is in very good, collectible condition. The bakelite housing has no cracks or fractures and has a deep shine. The glass catwhisker detector tube is intact, and the internal mechanism is complete.
Operation not tested, but considering the simple analog technology, it can often still be made functional.

Beautiful detail is the original instruction on the underside.

The detector is insured and shipped very well packaged.

Manufacturer: WISI (Wilhelm Sihn Jr. KG)
Model: Detector Apparatus No. 57
Country of origin: Germany
Period: circa 1925-1935
Material housing: Bakelite

Connections
Links and top right: Marked with symbols for antenna and ground.
Sides/Bottom: For connecting a headphone (high impedance, 2000-4000 Ohm).

The object is in very good, collectible condition. The bakelite housing has no cracks or fractures and has a deep shine. The glass catwhisker detector tube is intact, and the internal mechanism is complete.
Operation not tested, but considering the simple analog technology, it can often still be made functional.

Beautiful detail is the original instruction on the underside.

The detector is insured and shipped very well packaged.

Details

Era
1900-2000
Brand
WISI
Model
Detektor-Apparat NR 57 Kristal detector
Multiple Models
No
Physical condition
Good
Nr of items
1
Includes
No extra's
Weight
800 g
Functional condition
Not tested
Height
6.5 cm
Width
10 cm
Depth
10 cm
The NetherlandsVerified
37
Objects sold
100%
Private

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