6H30pi ARC BAT select Electro Harmonix gold plate QUAD
Listed · 341 Views
4 Watchers
Items from this seller
This listing has ended.
Listings Similar to Electro Harmonix
Time Left: None
This listing has ended.
Condition | |
Payment methods | |
Ships from | Sugarloaf Key, FL, 33042 |
Ships to | United States |
Package dimensions | 8.0" × 8.0" × 8.0" (1.0 lbs.) |
Shipping carrier | USPS |
Shipping cost | $7.95 |
Original accessories | Box |
Average | Research Pricing |
New select grade ARC or BAT matched for plate current and gm. This is a beautiful set, and hard to beat QUAD, four pieces.
There is a misconception that Sovtek and Electro Harmonix are no different. They are made in the same factory, the Sovtek factory. When they are burned-in and tested, the best, the very best are sent to Electro Harmonix for gold plating. They get tested again, after the gold plating, merit and for micro-phonics, before being shipped to New Sensor in New York.
These tubes were, at extra cost, retested by New Sensor in NY at our request and matched as close as possible in December 2019. When we tested them on our AVO TCM 163, we re-sorted them to groups. This group has the tightest gm and current. The AVO tests these at 90vdc, bias 3.1, and filament at 6.3. Average new is 30ma at 15,000gm.These are BOOK values from the plate characteristics charts and specification sheet.
No inter-element leakage, shorts, gas, or micro-phonics.
Here are the numbers for each triode section:
Box 10: 16500 at 36ma and 15500 at 35ma
Box 6 : 17000 at 38ma and 16000 at 35ma
Box 4 : 17000 at 37ma and 16500 at 38ma
Box 1: 17500 at 38ma and 16500 at 38ma
This is a beautiful set, hard to beat, and hard to find
No questions have been asked about this item.
Ask the seller a public question
You must log in to ask a question.
Return Policy
Return Window
Item can be returned within 7 days of receipt.
General Terms
Items must be returned in their original condition, with all included packing materials and no signs of use. Buyer assumes responsibility for all shipping return costs unless the item was not received as described.
Refunds
Buyer will receive a full refund in the original payment method less any shipping charges.
Special Conditions
5% fee for any equipment to returned to cover checkout for damage. Any marks, there is no return. Shipping is paid by buyer.