The 2SK and 2N parts have different pin-outs. The clone board is designed
for a 2N transistors. To put one on an old original KLM-367 you would have to do
the “crossed legs” thing. Actually, I think the Gate is still in the middle, so
you would just put it in backwards, no bent legs, just reversed Source and
Drain. I’ve been using 2N3819 without problems on the clone boards, and it still
seems to be available at Mouser in the US. You could always be the first to try
2N7000 and let us know. I don’t know enough about FET characteristics to say
what the 7000 would do in this circuit. DIYstompboxes.com has some discussion
about what other people have tried as a replacement for 2SK30A in some
guitar pedals.
Don Backshall
From: josh.nursing@gmail.com
Sent: Sunday, March 9, 2014 11:51 AM
Subject: [PolySix] MG / LFO Q1 transistor
replacement.