I think I came to the right place to ask this question.

I have an 20 years old Siemens intercom and it didn't speak anymore to the person outside ringing the doorbell. There are 2 'phones' in the house. And both didn't transmit my voice to de outdoor speaker anymore so I'm positive this speaker is dead. Also I did a small test to take a small telephone horn speaker an attached it to the outdoor intercom and then connect it briefly to the intercom doorbell outside. Then I did hear the person speaking inside.

I took the 50mm radius speaker out and looked at the specs of it on the back of the magnet. Quite special specs and these days I'm not able to find anything like it online to replace it with. It reads: (brand is unclear to me)Buk(son?) 50RF04N 65Ω0.3W KOREA

Can anyone help me out on suggesting a replacement speaker for this exotic one?

Thank you!

  • \$\begingroup\$ No, actually this is not the right place for your question. Questions seeking a recommendation for a specific product are off-topic. \$\endgroup\$ – Elliot Alderson Jan 11 at 13:04
  • \$\begingroup\$ If you can find something close to 50mm, 65Ω, 0.3W it will work. You test demonstrated that quite a bit of variation is tolerable. You may need to be creative about mounting since there is very little possibility of finding an exact replacement. \$\endgroup\$ – Charles Cowie Jan 11 at 14:37
  • \$\begingroup\$ Thank you Charles, well actually the problem is that there isn't anything close to these specs to replace. \$\endgroup\$ – evo Jan 11 at 14:44
  • \$\begingroup\$ Actually there are many 50mm speakers available. So 50mm is not the problem here . I don't know if that wattage is too high to function.Most of the 50mm speakers are 0.2W and the ohmages are 8 or 45. Should 0.2W 8ohm or 0.2W 45ohm be more suitable? \$\endgroup\$ – evo Jan 11 at 14:53
  • \$\begingroup\$ The 45 ohm speaker is a closer match, so I would try that. \$\endgroup\$ – Charles Cowie Jan 11 at 15:11

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