11-12-2008, 11:51 PM
Evening guys,
Just finished rewinding the shadowmeter on my model 91 and was curious as to the resistance measurement. I used 40 gauge wire and have 475 ohms. Does this seem about right??
Second question if I may. It appears my model 91 is slightly different then what is posted on Nostalgia and what is in my riders. Someone had written "51 series" on the tube chart on the shield.
The biggest difference is it appears my shadowmeter is tapped from the B+ prior to the choke and then to resistor 14 then to the meter. I would think it preferable to be tapped in after the choke.
Either way it seems like a LOT to ask of 40 gauge wire to handle B+ voltage!
Any thoughts?
Thanks,
Dave
Just finished rewinding the shadowmeter on my model 91 and was curious as to the resistance measurement. I used 40 gauge wire and have 475 ohms. Does this seem about right??
Second question if I may. It appears my model 91 is slightly different then what is posted on Nostalgia and what is in my riders. Someone had written "51 series" on the tube chart on the shield.
The biggest difference is it appears my shadowmeter is tapped from the B+ prior to the choke and then to resistor 14 then to the meter. I would think it preferable to be tapped in after the choke.
Either way it seems like a LOT to ask of 40 gauge wire to handle B+ voltage!
Any thoughts?
Thanks,
Dave
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
