# What is a tricoil?

I'm a newbie in these waters so please bear with me and my potentially dumb question.

I have a schematic of a device I want to build that I'm trying to decipher and source the parts for. In the parts list, aside from usual things and codes that are easily google-able and easy to find, I have also the entry "TRICOIL". I've tried google and some forums but no luck. Does anyone know what this part is and what it's called in the language of electronics retailers? I attach a snapshot of the schematic for easier understanding.

Thanks in advance and cheers!

• What is it doing in the circuit? Would a transformer with two secondaries connected in series make sense? Mar 25, 2020 at 17:00
• i agree with @evildemonic .... google transformer multiple secondaries .... can you post the whole schematic? (or a link) Mar 25, 2020 at 17:08
• Can you post a larger section of the circuit or link to the whole thing? It would also help to know what the circuit is.
– JRE
Mar 25, 2020 at 17:10
• @MarkoBarovic please either delete this question, or better, yet, post an answer yourself, explaining what this is! Mar 25, 2020 at 18:39
• @evildemonic, a series-connected secondary is nothing more than a center-tapped secondary. (The right-most downward pointing wire is the center tap, in this case.) The figure just looks strange because the transformer windings are conflagurated (that's a tech term /s) to fit within the part's square shape and case pin positions on the schematic diagram. My guess is "TRICOIL" is a brand name or something. Mar 25, 2020 at 18:49