Comment by danbruc

Here [1] are some pictures and additional details on NLJDs. You can get your own, for example the Orion 2.4 [2] for USD 15.2k (free shipping) [3].

[1] https://www.cryptomuseum.com/df/tscm.htm#nljd

[2] https://reiusa.net/nljd/

[3] https://spyassociates.com/orion-2-4-non-linear-junction-dete...