• These commercial threads are for private transactions. diyAudio.com provides these forums for the convenience of our members, but makes no warranty nor assumes any responsibility. We do not vet any members, use of this facility is at your own risk. Customers can post any issues in those threads as long as it is done in a civil manner. All diyAudio rules about conduct apply and will be enforced.

JFET BOZ Preamp

Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
Member
Joined 2005
Paid Member
2SK170 JFET BOZ Preamp in nice Aluminum Case.

Built per the schematic by Nelson. But instead of 25k volume pot, I have a 100k stepped attenuator, and the 10uf cap is a Wima 1.5uf. Preferred the sound of the 1.5uf Wima over any 10uf cap I had...

The "stop" at Max Volume has worn down, and can rotate full turn - there is slight resistance from full volume to min volume...

Overall very clean sound with lots of gain (too much for anything I needed)

Powered by 19 VDC Laptop power supply (included).

How does $140 sound?
 

Attachments

  • P1010002.JPG
    P1010002.JPG
    713.3 KB · Views: 495
  • P1010003.JPG
    P1010003.JPG
    690.8 KB · Views: 454
  • P1010004.JPG
    P1010004.JPG
    663 KB · Views: 462
Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.