Hello Ait,
Oh, do not get me wrong, I am just curious following your experiment. Yes, I am aware that your unit is not stock anymore. The same reason why I asked if you know the rating of the rectifier filament supply.
Yes, you are right, on the manual the GZ37 is listed as "ok" replacement of a 5AR4. He also listed a GZ32 but not a GZ33 or a 5U4. That is my point. I thought the GZ37 has a current draw of 2.8 amps max, 200 mA amps difference from a GZ33 (with 3 amps).
regards,
Abe
Oh, do not get me wrong, I am just curious following your experiment. Yes, I am aware that your unit is not stock anymore. The same reason why I asked if you know the rating of the rectifier filament supply.
Yes, you are right, on the manual the GZ37 is listed as "ok" replacement of a 5AR4. He also listed a GZ32 but not a GZ33 or a 5U4. That is my point. I thought the GZ37 has a current draw of 2.8 amps max, 200 mA amps difference from a GZ33 (with 3 amps).
regards,
Abe