1821 Philips BVA balloon ribbed plate gold top lettering DW2 full getter

Description

The Philips 1821 balloon shape ribbed plate is a very popular audio and radio rectifier.

It bears 1821 BVA on top of dome with type and all that you need to know about it.

The Mullard counterpart is the DW2.

Wide anode with sturdy structure and full getter.

The four Philips 1821 have all been tested at 4 Volts heater with full emission and working order.