01-06-2022, 08:10 AM
Hi.
I've used many Russian rectifiers that are every bit as good as Mullard, Philips and American versions and often better rated. The Chinese ones are a different kettle of fish.
The GZ34 has a lower forward voltage drop than the GZ32 and for a given load will run cooler than the 32, hence the smaller envelope.
If contemplating silicon monitor the peak HT prior to the load increasing as the valves warm, then add 20% to that voltage and see if smoothing caps and other caps on the HT line are suitably rated, if not you'll have to replace them or stick with the valve rectifier which I would if humanly possible.
I've used many Russian rectifiers that are every bit as good as Mullard, Philips and American versions and often better rated. The Chinese ones are a different kettle of fish.
The GZ34 has a lower forward voltage drop than the GZ32 and for a given load will run cooler than the 32, hence the smaller envelope.
If contemplating silicon monitor the peak HT prior to the load increasing as the valves warm, then add 20% to that voltage and see if smoothing caps and other caps on the HT line are suitably rated, if not you'll have to replace them or stick with the valve rectifier which I would if humanly possible.
