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None of the 11 meter equipment is going to have individually biased transistors and the board has to be planed for that in advance. You must isolate the DC path to the gates of the transistors from the input transformers secondary winding. That requires low inductance chip capacitors being installed between the transformer and gates before you can even add the individual bias parts to the existing circuit. On a board like this, your best bet is to try and match your own transistors using one of the testers found on eBay for testing gate threshold.

[QUOTE="Shockwave, post: 699727, member: 10882"] None of the 11 meter equipment is going to have individually biased transistors and the board has to be planed for that in advance. You must isolate the DC path to the gates of the transistors from the input transformers secondary winding. That requires low inductance chip capacitors being installed between the transformer and gates before you can even add the individual bias parts to the existing circuit. On a board like this, your best bet is to try and match your own transistors using one of the testers found on eBay for testing gate threshold. [/QUOTE]

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