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Through 1/8/2025

Electro-Harmonix

New Matched Quad (4) Electro-Harmonix 6BM8 Vacuum Tubes

(1 review) Write a Review
SKU:
NP060-4
UPC:
841358102073
MPN:
Quad 6BM8
Availability:
Ships in 1 business day or less.
Shipping:
Calculated at Checkout
On Sale
Now: $140.19
Was: $155.77

Out of stock

Frequently bought together:

Description

New Matched Quad of Electro-Harmonix 6BM8 (ECL82) Vacuum Tubes

The world's only new production 6BM8 featuring a more robust plate structure for better sound. A fairly obscure tube but popular enough that Electro-Harmonix decided to reissue it. As the supply of vintage 6BM8’s dries up, it is good to see a reissue of their vintage counterpart. The European designation for 6BM8 is ECL82 and both tubes are compatible with one another. These tubes feature a preamp section and a power section making them quite unique. These require well-kept and calibrated TV-7’s to test properly. They are specifically tested and matched by their Gm.

Will work in place of: 6BM8, ECL82

Testing and/or Matching

At VIVA TUBES, all of our customers get the same high standard of testing and matching. Some sellers charge more for premium matches but we believe all of our customers should get the same level of quality and service. 

Tubes are tested and/or matched at full operating voltage with regulated power supply on a Maxi Matcher tester for general mutual transconductance (Gm). In addition, power tubes are tested/matched by plate current (Ip) and preamp tubes are tested/matched by gain. Rectifier tubes will be tested for emissions on a calibrated military grade tube tester. 

Our goal is to match within 5% with an upper limit of 15% (15% is the industry limit to consider a set).

Hand written test data included.

Note that we do offer a few models which are tested & matched at the factory. They will be matched by the same parameters (Ip & Gm) but to the manufacturer's standards. Factory testing will be indicated in the item title and description. 

Guarantee

We offer a minimum 90 day guarantee covering functional defects - including noise unless otherwise stated. The guarantee period begins the day you receive your order.

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Additional Information

reverb_offers:
off
reverb_model:
6BM8 ECL82
reverb_condition:
Brand New
reverb_shipping_profile:
$13.99
reverb_upc_does_not_apply:
on
Item Type:
Vacuum Tubes
Production Era:
New/Current Production
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1 Review

  • 5
    great sounding tube

    Posted by Larry Stark on 25th May 2019

    I have a pair of Antique Sound Wave 8 mono block amps that use this tube. Previous tube was Svetlana which sounded good bit I wanted to try another brand without going NOS and I wanted a matched set. These Electro Harmonix tubes sound great and seem to have a bit more power than the Svetlana set.

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