29-11-2013, 08:49 AM
(04-11-2013, 06:03 PM)Yorkie Wrote: The '32' circuit shows 3 x 5uF electrolytics, but I can only see two on the PCB of this '62' Bridge. I'll start by replacing those, and a couple of smaller value Hunts (0.1 and 0.01uF).
I've just realised why there are only two 5uF electrolytics in your 62 and three on the 32 circuit. C9 and VR3 are missing from the 62 circuit. They must have changed the amplifier circuit for the 62 to remove those components. All VR3 appears to do is alter the sensitivity of the null indicator. It also makes the front panel look untidy due to its location which makes me think it was a bit of an afterthought.
I'll post a picture of the 32 front panel tonight.
Keith







