ECC83 i65 Pair Philips Miniwatt (V81/178)be

165,00

Highlights

  • NOS specs 
  • Same production year
  • Highly regarded sonics
  • Heerlen production

1 in stock

Description

This is a pair ECC83 produced by Philips Miniwatt in the sixties in Heerlen the Netherlands. The tubes have small ring getter and ribbed plates (Version I65), see pictures. Very healthy tubes with NOS specs! Tubes with matching systems; see test results.

The tubes look and measure unused; see pins!

Sonics

The early Philips Miniwatt ECC83 is highly regarded; deliver crispness and transparency. I refer to the many threads on the web for more information. Excellent preamp valve, low noise, very smooth extended highs, very good in phono stages. Balanced and smooth sounding with liquid midrange, recommended!

Note: if your system is to “bright” already, this tube is not a first choice. ECC83 tubes of Mullard, Brimar or Telefunken are to be considered in that situation. 

Please read our test notes and shipping policy before buying !

Test results*

Valve 1

V81

Ia (plate current):

Transconductance (Gm):

Gas test, Shorts test:

1,2/ 1,2 mA      

1,5/ 1,6  mA/V

OK 

=  NOS

=  NOS

Valve 2

V178

 Ia (plate current):

Transconductance (Gm):

Gas test, Shorts test:

1,3/ 1,2 mA

1,8/ 1,8  mA/V

OK

= NOS

= NOS

 

Where NOS is : Ia = 1,1 to 1,4mA, Gm= 1,3 to 1,95 mA/V. 

  *  For test methods and factory specification read the tube testing page.

 

Short description

Tube type ECC83 Philips 
Quantity of Tubes One pair
Brand Philips Miniwatt
Manufactured in Heerlen Netherlands
Dates 1963 / 1963 (3G4/ 3L3) 
Construction Ribbed plates 
Getter Construction Small halo getter
Print Condition Both nice; see pictures
Box included White box
Equivalent tubes:  12AX7, ECC803S, CV4004, 12AX7A
General test results  NOS 

Additional information

Weight 50 g
Dimensions 15 × 3 × 3 cm