Thursday, January 31, 2019

Digital Sand Bomb

In keeping with the "Bomb" theme here is something I have been playing with.  It is a Step up device based on the Nelson Pass Zen  I/V converter for a Dac.

Of course I have no use for resistive loads, coupling caps or anything digital so I dressed up the 2SK170 / 2SJ74 combo with a good dose of 80% nickel and feed it with a MC cartridge.

Yes this is a stereo pair with both input and output transformers and it loads the cartridge with around 10 ohms. 

Initial tests are quite promising.


  1. Wow!!! Don't you guys have enought trouble getting through airports?

  2. Good use of those j-fets. A lot better than I did.


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