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EF37A Philips MINIWATT red print large glass with letters on black base rare! tested 100% NOS

EF37A Philips MINIWATT red print large glass with letters on black base rare! tested 100% NOS - Image 2

EF37A Philips MINIWATT red print large glass with letters on black base rare! tested 100% NOS - Image 3

EF37A Philips MINIWATT red print large glass with letters on black base rare! tested 100% NOS - Image 4

EF37A Philips MINIWATT red print large glass with letters on black base rare! tested 100% NOS - Image 5

EF37A Philips MINIWATT red print large glass with letters on black base rare! tested 100% NOS

Philips MINIWATT EF37A tested 1005 £ 140 quartet.

Category: Audio output beam tetrode with octal base

Description
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Description

The Mullard EF37A valve is a high impedance screened pentode made for frequency amplifier.

It was a very popular pentode used in radios and amplifiers back in 1940s.

The EF37A (and EF36) are the father of the later Mullard EF86.

The valves shown here are made by Philips which is a Mullard works anyway, with large glass and they ALL have the same code on base EP2 B7L1!

All four EF37A MINIWATT valves have been tested at full 100% emission and in working order.

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