EL34 metal base nice pair Philips Miniwatt HOLLAND NOS specs 1955! v27/142

925,00

Highlights

    • Best sounding EL34 ever!
    • Holland (Sittart) production
    • 1955 DATE CODE 
    • TEST New (SEE TEST DATA)
    • Welded plates

1 in stock

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Description

Here is a pair of metal base Philips Miniwatt EL34 valves. 

The Philips Miniwatt, Holland made metal base EL34 is one of the most desirable EL34 ever produced. Both tubes have date code SYA 5M, which puts their production date in 1955. They are used but in beautiful shape and have NOS specs. These are the King of the EL34. Introduced in 1953, the metal base EL34 was the first version, and some say the best sounding, of the EL34 / 6CA7 family of tubes.

The metal base Philips Miniwatt EL34 is considered by many as the best sounding of all EL34 tubes ever. 

They deliver superior sonics. I refer to the many reviews on the web.

The pair has NOS test values and nice looks. 

Note: my tubes are often not the cheapest. But is very hard to find better tubes !

Test results*

The measurement data below show that both tubes are matched. 

Valve 

V27

Ia (plate current):

Transconductance (Gm):

Gas test, Shorts test:

111  mA

12,0  mA/V

OK

=  NOS

= NOS

 

Valve 

V142

Ia (plate current):

Transconductance (Gm):

Gas test, Shorts test:

112  mA

11,3  mA/V

OK

=  NOS

=  NOS

 

* Please read our test and shipping policy before buying !

Telefunken measuring values for new unused tubes:

  • The rated emission value for a new EL34 is:  100 mA. 
  • The rated transconductance value for a new EL34 is:  11 mA/V . 

For Telefunken specs info see last picture 

Test condition & equipment:

Mutual transconductance, plate current, gas and shorts test equipment: AVO Mk IV (Dutch army tester) , AVO Valve Data Manual 23rd edition 1981, RFT stabilised mains, Utracer3+, Philips PE 4832, 2x Korad KA3005P programmable power supply, 2x Keithley 2700 and 2x Fluke 145. 

Test conditions: Ua (plate voltage) = 250 Volts, Us (screen voltage) = 265 Volts, Ug = -13,5 Volts and Uf = 6,3 V ± 3% (factory conditions). Please read our test page.

Summarized description

Tube type EL34
Quantity of Tubes One pair
Brand Philips Miniwatt
Manufactured in Sittard, Netherlands
Date code SYA 5M  (1955)
Plate Construction Welded grey plate
Getter Construction Round disk getter
Print Condition Excellent & reasonable; see pictures
Box included Generic white boxes
Equivalent tubes:  6CA7
General test results  NOS
example