[Amps] MLA2500 Multimeter Type?

[Steve Thompson]

On Wednesday 30 October 2002 01:09, Douglas R Snowden wrote:
> The multimeter in my MLA2500 is blown. I think I will replace it
> with another and replace the power meter with a dedicated grid
> current meter.  Anybody know what was in there originally?
>
> 1MA ?
100uA I think. The HT series resistors are 3M in my circuit.

Changing the grid shunt resistor to something higher makes life easier.

Given that the tubes are rare, I reckon that changing the blower to run at 
full speed all the time is a good idea. I wired it to run all the time that 
line input was there, so the tubes could be cooled down after the amp was 
turned off.

Steve