Mazda PP3/425 valve - UK Vintage Radio Repair and Restoration Discussion Forum

tubelover · 30th Mar 2015, 4:42 am

Hello all
Does anyone have data for this tube?

regards
Alex

AC/HL · 30th Mar 2015, 12:16 pm

There aren't many references to this valve on-line, the only one I saw with data was this:
Mazda PP3/425. This valve was designed for use as a driver. Vf = 7.5, Va = 425, Ia = 30, Vg = -100, Ra = 10.5 k.ohms.

tubelover · 30th Mar 2015, 2:30 pm

Thank you Bill
In my "Mazda radio valves" this info in earlier type valves:
7,5V
1,25A
425V
1 m/av
2.9
2.9 koHm

I was hoping someone might have an earlier version of the Mazda valve manual, where there is a graphics volts / amps characteristics...

30th Mar 2015, 4:42 am	#1
tubelover Triode Join Date: Mar 2015 Location: Moscow, Russia. Posts: 10	Mazda PP3/425 valve Hello all Does anyone have data for this tube? regards Alex

30th Mar 2015, 12:16 pm	#2
AC/HL Dekatron Join Date: Nov 2003 Location: Heckmondwike, West Yorkshire, UK. Posts: 9,642	Re: Mazda PP3/425 valve There aren't many references to this valve on-line, the only one I saw with data was this: Mazda PP3/425. This valve was designed for use as a driver. Vf = 7.5, Va = 425, Ia = 30, Vg = -100, Ra = 10.5 k.ohms.

30th Mar 2015, 2:30 pm	#3
tubelover Triode Join Date: Mar 2015 Location: Moscow, Russia. Posts: 10	Re: Mazda PP3/425 valve Thank you Bill In my "Mazda radio valves" this info in earlier type valves: 7,5V 1,25A 425V 1 m/av 2.9 2.9 koHm I was hoping someone might have an earlier version of the Mazda valve manual, where there is a graphics volts / amps characteristics...