DW30 Mullard Red Print balloon ribbed plate full D-getter audio rectifiers

Description

The FW30 is a high vacuum rectifier working at 7.5 Volts heater.

We already have a pair of balloon early type in stock on this website.

Now we introduce the 1931 version with large balloon shape, ribbed plate and full D-ring getter.

Base is typical Mullard

Both DW30 valves tested 100% emission and working order.