Grundig GDM 18. I can't find any useful information about this microphone on the internet. This means i didn't know how to connect it. So I opened it. : r/audioengineering
Latest Acquisition - Grundig TK 14 - UK Vintage Radio Repair and Restoration Discussion Forum
Killer Vintage Sennheiser Mic Capsules for CHEAP - Grundig GDSM202 - YouTube
Grundig GDM 311 Microphone 60er years NOS | Reverb
Grundig GDM 318 Microphone with original box-stand , black | Reverb
Vintage Grundig Microphone, Model GDM-15, Made In West Ger… | Flickr
VINTAGE GRUNDIG MICROPHONE MODEL GDM 121 HUM PROBLEM SOLVED | #1815658256
FROM 1950 GRUNDIG MICROPHONE | eBay
Grundig GDM 110 microphone - Bakelite - Catawiki
Used Grundig GDM 312 Radios for Sale | HifiShark.com
GRUNDIG GDM-10 Vintage Microphone Made in Germany Braided Cord 1956 | eBay
Grundig microphone in case, GDM 18. Reel to reel tape. | #248554395
GRUNDIG GDM 10, dynamisches Mikrofon, Kabel mit alten Stecker in Mitte - Wedding | Weitere Audio & Hifi Komponenten gebraucht kaufen | eBay Kleinanzeigen
Vintage Astatic D-104 Microphone With T-UG9 Stand - Etsy Hong Kong