Pages

▼
Showing posts with label phono. Show all posts
Showing posts with label phono. Show all posts
Thursday, November 17, 2022

Beogram 6000 (5505): Full Functional Restoration Pt.2: Exploration and Restoration of CD-4 Pre-Amplifier

›
This post is the second installment of my report of the restoration of a Beogram 6000 Type 5505 with AC platter motor. The first part can be...
Monday, November 26, 2018

Beomaster 8000: Exchanging the Opamps in the Signal Path and Test

›
After updating the uProcessor board in the Beomaster 8000 that I am working on right now, it was decided to also update the opamps while t...
Wednesday, April 18, 2018

Beomaster 8000: New Signal Path Opamps and Amplifier Performance Characterization with a QA400 Audio Analyzer

›
Inspired by Sonavor's recent effort to characterize the amplifier performance of a Beomaster 8000 after replacing all signal path opam...
Friday, February 9, 2018

Beomaster 8000 Circuit Upgrade: FM Audio Muting During Use of Phono Input

›
After reviving the Beomaster 8000 that came for a visit from Australia with new processor crystals , it was time to do some additional work...
Saturday, January 27, 2018

Beogram 4002 (5513): Installation of Beolover Commander MkII Remote and Internal RIAA Pre-Amp Board

›
The owner of the Beogram 4002 (5513) that I am finishing up asked me to install my 4002 Commander remote control as well as my internal RIA...
Monday, October 30, 2017

Beogram 4002 (5523): Installation of 4002 Commander MkII Remote Control and Internal RIAA Preamp

›
I recently finished up the restoration of a Beogram 4002 (5523). My customer decided to add both the Beolover 4002 Commander MkII remote co...
Friday, April 21, 2017

Beogram 6000 (5512): Restoration and Characterization of CD-4 RIAA Preamplifier

›
The most interesting part of the restoration of the Beogram 6000 that is on my bench right now was  working on the 4-channel CD-4 preamplif...