Philips

Philips EL84 6BQ5 Matched Pair - Heerlen, NL 1969 KM4 - Low Paint Special

Name: Philips EL84 6BQ5 Matched Pair - Heerlen, NL 1969 KM4 - Low Paint Special
Brand: Philips
SKU: 266839767116
Price: 82.5 USD
Availability: InStock

Philips EL84 6BQ5 Matched Pair - Heerlen, NL 1969 KM4 - Low Paint Special

$82.50 USD

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Product Summary

Model: 1969 Philips EL84 6BQ5 (Made in Holland)

Soundlumia Tube Sound Rating: 9.0/10 - Outstanding

Date codes:
KM4 𝛥9H1 (KM4 = EL84 production gen #4, 𝛥 = Heerlen, Holland, 9 = 1969, H = August, 1 = Week 1 of production month)
KM4 𝛥9H2 (KM4 = EL84 production gen #4, 𝛥 = Heerlen, Holland, 9 = 1969, H = August, 2 = Week 2 of production month)

GM (Mutual Conductance) test result: 93%/91% of NOS/NEW

Silkscreen: 90% - 100%

Packaging: NEW reproduction Phillips tube boxes.

Professional Tube Testing

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

Tube 1:

Measured transconductance (GM): 10.51 mA/V - 93% (100% = 11.30 mA/V)

Measured plate current (IA): 39.07 mA - 81% (100% = 48 mA)

Tube 2:

Measured transconductance (GM): 10.25 mA/V - 91% (100% = 11.30 mA/V)

Measured plate current (IA): 47.17 mA - 98% (100% = 48 mA)

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