PROJECT ETI566

[ZuMi77]

Dear Baterista,
Have you got a pdf article on Gemini3 explaining the circuit diagram and the working principle like the one on project 566?

[Baterista]

Hello ZuMi77, I don't have anything about Gemini3.

[kt315]

just a sch of TX part exist.

[ZuMi77]

Dear Baterista,
I have got all the pot cores and their accessories of ETI 566 project. However, there was one thing missing (the threaded insert) that tiny small piece in which the adjuster goes in and out to adjust the inductance. The items cost me a lot. I cannot order the "threaded insert"; that would cost a lot. It's not the price of the threaded insert itself; it's about customs fees and shipment fees. Any ideas on something I can use in place of the missing item?

[Baterista]

Hello ZuMi77, you can do the assembly without the adjuster, so if necessary you can replace the receiver's capacitor C6 with one with a slightly smaller value (220pf for example) or a little larger (300pf for example), which is directly related the frequency together with L2, or a variable capacitor can be used in place of C6, which has a capacitance between 300pf and 100pf.

[ZuMi77]

Dear Baterista,
Thank you for the reply. That's a great idea. It didn't come into my mind. We change the capacitance instead of changing the inductance to control frequency.