Philips

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Amperex/Philips EL84 6BQ5 D-Getter - Sittard

$249.50

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Tube Care & Handling

Vintage tubes should be handled with care. Always power equipment off and allow tubes to cool before installing or removing them. When possible, handle tubes by the base rather than pulling on the glass, and avoid bending or unnecessarily cleaning the pins.

Store unused tubes in a dry, protected location. Cosmetic variations, label wear, and other age-related characteristics are normal with authentic vintage stock and are documented in the product listing where relevant.

Description

Product Summary

Model: 1950s Amperex/Philips EL84 6BQ5 (Made in Sittard)

Soundlumia Tube Sound Rating: 9.0/10 - Excellent

Single (1x '56 - Strong)

1x Philips EL84 6BQ5 D-Getter - Sittard 1956 - Strong

$105.00

Single (1x '55 rX2)

1x Philips Miniwatt EL84 6BQ5 D-getter - Sittard, NL 1955 rX2

$95.00

Single (1x '56 rX3 Gold Pins)

1x Amperex EL84 6BQ5 D-getter Gold Pins - Sittard, NL 1956 rX3

$90.00

Single ('58 Philips rX3 - Strong)

1x Philips Miniwatt EL84 6BQ5 D-getter - Sittard, NL 1958 rX3 - Strong

$82.50

Product Summary

Model: 1958 Philips EL84 6BQ5 (Made in Holland)

Soundlumia Tube Sound Rating: 9.0/10 - Outstanding

GM (Mutual Conductance) test result: 77% of NOS/NEW

Professional Tube Testing

This set was tested and certified by RoeTest V11 tester with the following result:

Measured transconductance (GM): 8.75 mA/V - 77% (100% = 11.30 mA/V)

Measured plate current (IA): 38.17 mA - 80% (100% = 48mA)

NO shorts, leakage or gas. NO noise or microphonics.

Curve trace is also included in the original RoeTest report.

Appearance & cosmetic condition

Silkscreen: 90% - 100%

Date code(s):

rX3 X8L (rX3 = EL84 Production Gen #3, X = Sittard, NL, 8 =1958, L = December)

Packaging: New white box

Pair ('55 Philips Label - NOS)

2x Philips Miniwatt EL84 6BQ5 D-getter Tubes - Sittard, NL 1955 rX1/rX2 - NOS

$249.50

Product Summary

Model: 1955 Philips EL84 6BQ5 (Made in Holland)

Soundlumia Tube Sound Rating: 9.0/10 - Outstanding

Date codes:

rX1 X5B (rX1 = EL84 Production Gen #1, X = Sittard, NL, 5 =1955, B = February)

rX2 X5F (rX2 = EL84 Production Gen #1, X = Sittard, NL, 5 =1955, F = June)

GM (Mutual Conductance) test result: 104%/120% of NOS/NEW

Silkscreen: 90% - 100%

Packaging: New white box

Professional Tube Testing

NO shorts, leakage or gas. NO noise or microphonics.

This tube tested NOS (100%+ mutual conductance value for NOS/NEW) on a reliable Mercury 2000 tube tester with the following result (mutual conductance both in uMhos and in percentage of NOS/NEW value):

Tube 1: 2,600 (104%)

Tube 2: 3,000 (120%)

Good tubes start at 1,200 and new tubes (incl. NOS/NIB) 2,500, and the Mercury 2000's rated mutual conductance for new EF86 tube is 2,500. Test result can also be seen in the pictures. In case you wonder what all these numbers mean to your sound experience, it's actually quite straightforward: mutual conductance directly translates to a tube's ability to amplify sound, so the higher the numbers the better.

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Amperex/Philips EL84 6BQ5 D-Getter - Sittard

Delivery and Shipping

Tube Care & Handling