Here we have ther front-end stripped down. Always look scarier then it is. Switches are treated with DoxIt, and everything is washed and de-fluxed.

The meter board gets a new set of precision trim pots, as well as new caps.

Wait a minute... this ain't right...

Here we have a rectifier set up using two dual diode devices. One is "common cathode" and one is "common anode" configuration.  Originally, this used two complimentry TO-66 devices (1S2724S and 1S2724R). These devices have been out of production for a long time. This replacment device performs the needed function. However, I don't like this. 1) The leads are not well Isolated from the metal plate 2) the devices are not well matched (I would have replaced the pair instead of just one) 3) lots of wires here I decied to create a whole new solution...                                                                                                       Next page ->