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Siemens & Halske E81CC - 1966 MINT NOS 3-MICA Munich W. German Premium ECC81 12AT7 - IMPERFECT SCORES
Siemens & Halske - 1966 3-MICA E81CC Munich W. German - Premium ECC81/12AT7 - IMPERFECT SCORES


 
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Single Tube = $45.00
Stock Details: Tubes as Shown Available
For Matched Pairs or Quads: Select 2 for a Matched Pair

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Product Code: 175-IMP
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Description Technical Specs
 
NOTE: Orphans from our large lot of E81CC tubes. These tubes have triodes that are not closely matched. May not be an issue in many applications.

Brand Spanking New, MINT NOS 1966 Siemens & Halske 3-MICA E81CC tubes. These are premium version of ECC81/12AT7 Type tubes. Munich production date codes etched in small dark font in style of the early Siemens production. Made in West Germany. Re-packaged in generic white boxes from bulk. One of our favorite ECC81 type tube and definitely in top 3 on our list of desirable ECC81 12AT7 types.

Tested and matched on Hickok 752, just recently calibrated and modified by Hickok expert to all Solid State to eliminate drift. However, on average 12AT7 measures lower on this 752 than it should.

For comparison, 12AT7 measuring 4400-4400 on calibrated Hickok 600 measures 3300-3300 mmhos on this 752. Average new 12AT7 on Hickok 600 is 4000 mmhos. In other words, actual test scores are higher than what we have noted on the tube boxes.

NOTE: Specify which tube you want in the comments box during checkout process. Tubes 1-2 and 3-4 can be used as pairs.

Tube 1: 5100-4100 mmhos
Tube 2: 4100-5000 mmhos

Tube 3: 4700-3850 mmhos
Tube 4: 3900-4700 mmhos

Tube 5: 5300-4050 mmhos.

Single Tube = $45. Select 2 for a Matched Pair.

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