Hello, i've some problems with my tgsl:
I've build a 27 cm coil, with 93 turns for TX, and 103 turns for RX. I'm not sure that values are correct.
I've replaced the LF 353 with a TL072, the LM308 with a TL071, and the BF245C with BF245A, cause I didn't find this components in my electronic...