Tube DIY Asylum

RE: BDT Preamp Schematics

147.145.40.44

In Reply to: RE: BDT Preamp Schematics posted by jkeny on May 16, 2008 at 08:13:20

Many different MOSFETS will work fine for Q1 and Q2. Do not substitute for the LND150s. You want enhancement mode N channel at a voltage rating that can take anything you will be throwing at it. For most tube circuits that are running under an amp of current you want to use a power mosfet designed for relatively low current, ie in the 1 amp range not the 40 amp range.

I personally have used at least six different part numbers and they all have worked fine.

John S.

Follow Ups:

RE: BDT Preamp Schematics - jkeny 17:49:03 05/16/08 (2)
- RE: BDT Preamp Schematics - John Swenson 00:24:04 05/17/08 (1)
  - RE: BDT Preamp Schematics - jkeny 04:18:51 05/17/08 (0)

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