These would make a super intercom system.. just add a 90v ringing voltage, talk battery.. and away... you go.

Actually.. if there is interest, I will clean them up. IF not.. trash bay.

Oh.. and BTW.. I've a complete key system too. if someone wants it. 

not qrp.. but all of it runs on low power. Batteries will hold up for a long long long time. 

FS.. yes.. heavy to ship.. flat rate box will do fine. figure about $20 or so for shipping.. whatever is on the label...

we can figure that out before shipping. 

Need an intercom to you doghouse?  Here it is!!