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Title: Help to ID Modulation Iron Post by: KzeroCOM on April 06, 2024, 05:46:15 PM Please take a look at the picture to see if it looks familiar.
Looking for help to ID the manufacturer or find the connection chart. Appears to be multi impedance type. I'm using 813's in AB1 to modulate a 4-400 in class C. 2000v on 813's, 3000v on 4-400. Thanks for taking a look! Title: Re: Help to ID Modulation Iron Post by: Opcom on April 20, 2024, 01:43:02 AM For some reason, looks a bit 'Thermador-ish' to me. No nameplate will be a challenge.
Title: Re: Help to ID Modulation Iron Post by: w0ms on January 01, 2026, 11:41:20 AM I have recently discovered the mod iron I have is made by Thermador from California back around 1950.
My next question is does anyone have a Thermador catalog from the late 40's early 50's? Thanks Title: Re: Help to ID Modulation Iron Post by: W1ITT on January 03, 2026, 03:30:45 PM I see that Thermador.com is a site that offers transformers for appliances. It might be fun to contact them and see if they have any old catalogs or material down in their dungeon that refers to older times and modulation transformers. AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
There's often someone who keeps a secret stash when the "efficiency" freaks come around and order anything that hasn't been used in the past month to be destroyed. I did it a few times and wasn't sorry... 73 de Norm W1ITT |