6-Meter preamplifier provides 20db gain

Posted on Jun 8, 2012

Cl, C2, and C3 are miniature ceramic or plastic trimmers- Tl (main winding) is 0.34 Âµ,. Use of 11 turns of no. 24 enameled wire on a T37-10 toroid core. The antenna winding has one turn, and Ql the source winding has three turns. T2 primary consists of 11 turns of no. 24 enameled wire on a T37-10 toroid. Tap Ql drain is three turns from C2 the end of the winding. The secondary has three turns.

Click here to download the full size of the above Circuit.

T3 is the same as T2, except its secondary has one turn.

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