D*A*M Forum

I’d like to ask for your opinions on these transistors. Are these real NKTs?

https://flic.kr/p/2kk95po
https://flic.kr/p/2kkdnz1
https://flic.kr/p/2kkcRi3
https://flic.kr/p/2kkcRhS
https://flic.kr/p/2kk95p8
https://flic.kr/p/2kkcRhX
https://flic.kr/p/2kkdnyK

if they're not in a 1966 arbiter fuzz face it doesn't matter

jreeves47 wrote: ↑Fri Dec 25, 2020 3:36 am if they're not in a 1966 arbiter fuzz face it doesn't matter

They look more convincing than the ones with the bold text that obviously stamped on, but I couldn't swear they were legit. I'm not an FF expert at all - the text maybe still looks a bit bigger than on the NKT213s I have. I have some 274s too, will have a look later if busy xmas schedule of sitting around doing nothing permits.

From my Analogman sunface:

Analogman 275s look like my 274s - text quite square with date/batch code underneath - if i's a date it could be 1973


213s have bigger narrower text, sometimes a bit slanted, no date/batch code


differences:

so, your 275s look like my 213s - I got them in batch with orig packaging so I think they are legit

Thanks! I have consulted to a couple of Fuzz gurus too and they said those nkt275s are legit.

Looking good to me!

For refference, here’s another NKT275 used on those old 60’s Pye radios.

https://flic.kr/p/2km9rBH